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Karbon

Lebewesen die in der Erdgeschichte im Karbon gelebt haben.

Abactinocrinus

Fedexia striegeli

Peripetoceras ozarkense

Abactinocrinus devonicus

Feistmantelia ornata

Peripetoceras tormentum

Abatocrinus

Fellerites

Peripristis

Abrotocrinus

Fenestella

Peripristis semicircularis

Abylea

Fenestella anodosa

Perissocrinus

Abylea minuta

Fenestella bendensis

Perissocrinus papillatus

Acaciapora

Fenestella cincta

Perittodus

Acambona

Fenestella cystica

Perittodus apsconditus

Acandylacanthus

Fenestella granularis

Permophorus

Acanthatia

Fenestella kosomensis

Permophorus arcus

Acanthatia rangariensis

Fenestella macleayensis

Permophorus oblongus

Acantherpestes

Fenestella malchii

Permophorus octocostatus

Acantherpestes foveolatus

Fenestella micropora

Permophorus subcostatus

Acantherpestes gigas

Fenestella mimica

Permophorus tropidophorus

Acantherpestes inequalis

Fenestella oklahomensis

Pernopecten

Acantherpestes major

Fenestella osbornei

Pernopecten attenuatus

Acantherpestes ornatus

Fenestella plebeja

Pernopecten ohioensis

Acantherpestes vicinus

Fenestella polyporata

Pernopecten prosseri

Acanthocladia

Fenestella rectangularis

Peromaptera

Acanthocladia ouachitensis

Fenestella roucheli

Peromaptera filholi

Acanthoclema

Fenestella serratula

Perotrilites

Acanthocosta

Fenestella swaini

Persia praecox

Acanthocrania

Fenestella yarrolensis

Peruvispira

Acanthodes

Fenesteverta

Peruvispira boreala

Acanthodes guizhouensis

Fenestralia

Peruvispira delicata

Acanthodes nitidus

Fenestrellina

Peruvispira deornata

Acanthonautilus

Fenestrellina apurimacana

Peruvispira sueroi

Acanthopecten

Fenestrellina nodograciosa

Petalaxis

Acanthopecten bellosum

Fenestrellina salebrosa

Petalaxis baculatus

Acanthopecten carboniferous

Ferganispira

Petalaxis beauchampi

Acanthopecten carboniferus

Ferganispira acteonina

Petalaxis crassicolumnus

Acanthopecten jaguelensis

Ferganispira gradussiformis

Petalaxis ellesmerensis

Acanthopecten meeki

Ferganites

Petalaxis elyensis

Acanthophyllum

Ferganites obesus

Petalaxis multilamellatus

Acanthoplecta

Ferganoceras

Petalaxis parvus

Acanthoplecta inopinata

Ferganoceras constrictum

Petalaxis thorsteinssoni

Acanthorhachis

Ferganoceras elegans

Petalodus

Acanthorhachis spinatus

Ferganoceras gracile

Petalodus acuminatus

Acanthoscapha

Ferganoceras torridum

Petalodus allegheniensis

Acanthoscapha blumenstengeli

Ferganoproductus

Petalodus arcuatus

Acanthoscapha takacsae

Fernglenia

Petalodus davisii

Acanthospirina

Fifeocrinus

Petalodus flabellula

Acanthotriletes

Filites

Petalodus hastingsiae

Acbastaucrinus

Fimbriaria miniformis

Petalodus hastingsii

Acbastaucrinus affectatus

Fimbrinia

Petalodus jewetti

Acherontiscus

Fissidentalium

Petalodus linearis

Acherontiscus caledoniae

Fissidentalium longistriatum

Petalodus ohioensis

Achistrum

Fissispongia

Petalodus sagittatus

Achistrum (Achistrum) brownwoodensis

Fissispongia jacksboroensis

Petalorhynchus

Achistrum coloculum

Fissodus

Petalorhynchus beargulchensis

Achistrum frizzelli

Fissodus dentatus

Petalorhynchus psittacinus

Achistrum gamma

Fissodus inaequalis

Petrablattina wemmetsweilerensis

Achistrum ludwigi

Fistulamina

Petrocrania

Achistrum monochordata

Fistulamina dispersa

Petrocrania modesta

Achistrum nicholsoni

Fistulamina malmoensis

Petrodus

Achistrum triassicum

Fistulipora

Petrodus patelliformis

Acitheca polymorpha

Fistulipora compacta

Petrolacosaurus

Aclisina

Fistulipora incrustans

Petrolacosaurus kansensis

Aclisina (Rhabdospira) selkirkii

Fistulipora megastoma

Petropegia

Aclisina golconda

Fistulipora minor

Petropegia radiata

Aclisina striatula

Fistulipora zonata

Petropegia spinosa

Acmaeoblatta

Fistuliramus

Petrovicia

Acmaeoblatta lanceolata

Fistulotrypa

Petrovicia proditoria

Acoblatta

Flabellites latus

Petschoracrinus

Acoblatta argillacea

Flabellofolium

Petschoria

Acodina

Flectoconularia

Petschoria elegans

Acondylacanthus

Flemingella

Peytonoceras

Acondylacanthus attenuatus

Flemingella nysti

Phacellopegma

Acondylacanthus colei

Flemingella prisca

Phacellopegma schizoderma

Acondylacanthus distans

Flexaria

Phacelocrinus

Acondylacanthus nuperus

Flexifenestella

Phacelocrinus brevis

Acondylacanthus tenuistriatus

Flexifenestella foraminosa

Phacelocrinus rosei

Acosarina monocosta

Flexifenestella grandis

Phacoceras

Acratia

Florennella

Phacoceras electum

Acratia schreteri

Floweria

Phacoceras semirutum

Acratinella

Floweria chemungensis

Phacops

Acridites

Fluctuaria

Phaenoblastus

Acrocanites

Fluctuaria undata

Phaenoblastus caryophyllatus

Acrocanites disparilis

Fodinopenna

Phaenoschisma

Acrocrinus

Fodinopenna abakanica

Phaenoschisma acutum

Acrocyathus

Foerstia

Phalangiotarbus

Acrolepis

Foerstia ohioensis

Phalangiotarbus subovalis

Acrolepis hopkinsi

Foliophycus

Phaneroceras

Acrolepis ortholepis

Follotites

Phaneroceras chesnuti

Acteonina

Follotites flexus

Phaneroceras compressum

Acteonina carbonaria

Follotites folloti

Phaneroceras kesslerense

Acteonina hanseni

Follotites stelus

Phaneroceras lenticulare

Actinoblatta bucheti

Fomichevella

Phanerosteon

Actinoceras

Forbesiocrinus

Phanerosteon mirabile

Actinoconchus

Forfexala

Phanerotinus

Actinoconchus lamellosus

Forfexala kiarae

Phanerotinus cristatus

Actinoconchus planosulcatus

Foriria

Phanerotinus intermedius

Actinocrinites

Foriria maculata

Phanerotinus nudus

Actinocrinites zhaoae

Forschia

Phanerotinus serpula

Actinocyathus

Forthocrinus

Phanerotrema

Actinodesma

Fortscottella

Phanocrinus

Actinodonta

Fortscottella gemmicula

Pharciphyzelus

Actinomylacris similis

Fouquea

Pharciphyzelus lacefieldi

Actinophrentis

Fouquea lacroixi

Pharkidonotus

Actinopteria

Fouquea needhami

Pharkidonotus acutocarinatus

Actinostroma

Fouquea sauvagei

Pharkidonotus breyeri

Actiobates

Fouquea superba

Pharkidonotus harrodi

Actiobates peabodyi

Fourstonella

Pharkidonotus labioreflexus

Acuminothyris

Foveosporites

Pharkidonotus megalius

Acutichiton

Fraipontia

Pharkidonotus percarinatus

Acutichiton pannuceus

Fraipontia alatum

Phascolophyllaphycus

Acutichiton pyrmidalus

Frankenholzia

Phascolophyllaphycus lohrensis

Acutimitoceras

Frankenholzia culmanni

Phauloblatta clathrata

Acutimitoceras hollardi

Frechella

Phenopterum

Acutimitoceras intermedium

Frederichthys

Phenopterum briggsi

Acutimitoceras mfisense

Frederichthys musadentatus

Phestia

Acutimitoceras occidentale

Friciella

Phestia corrugata

Acutimitoceras posterum

Friciella aurea

Phestia inflata

Acutimitoceras subbilobatum

Friedrichsthalia blatteri

Phestia obtusa

Adacrinus

Frumentella

Phestia pandoraeformis

Adacrinus edema

Frumentella stewarti

Phestia rugodorsata

Adairia adairensis

Frustulata

Phestia wortheni

Adamanophyllum

Fryopsis

Philhedra

Adamanterpeton

Fuersichnus commerfordi

Philiasptilon

Adamanterpeton ohioensis

Fulgorina

Philiasptilon maculosum

Adamantina

Fulgorina klieveri

Phillibole

Adamantina foliacea

Furculosus

Phillibolina

Adeloblatta

Furculosus carpathicus

Philliboloides

Adeloblatta columbiana

Fusella

Phillipsia

Adeloblatta gorhami

Fusella llanoensis

Phillipsia bittneri

Adeloblatta sellardsi

Fusella mucronata

Phillipsia eichwaldi

Adelogyrinus

Fusiella

Phillipsia grandis

Adelogyrinus simorhynchus

Fusiella lancetiformis

Phillipsia harcourtii

Adeloneura

Fusiella praetypica

Phillipsoceras

Adeloneura thompsoni

Fusiella quasitexana

Phillipsoceras alpharhipaeum

Adelophthalmus

Fusiella typica

Phillipsoceras betarhipaeum

Adelophthalmus granosus

Fusulina

Phillipsoceras carinatum

Adelophthalmus imhofi

Fusulina cylindrica

Phillipsoceras gammarhipaeum

Adelophthalmus luceroensis

Fusulinella

Phillipsoceras gradile

Adelophthalmus piussii

Fusulinella (Fusulinella) bocki

Phillipsoceras linguatum

Adelophthalmus zadrai

Fusulinella (Fusulinella) colaniae

Phillipsoceras remissum

Adelospondylus

Fusulinella (Fusulinella) pseudobocki

Phillipsoceras separatum

Adelospondylus watsoni

Fusulinella concinna

Phiops

Adenoderma

Fusulinella devexa

Phiops aciculorum

Adenoderma gracilis

Fusulinella eopulchra

Phlegethontia

Adetognathus

Fusulinella fugafilia

Phlegethontia linearis

Adiantides

Fusulinella helenae

Phlegethontia longissima

Adiantites

Fusulinella juncea

Phoberoblatta

Adiaphtharsia

Fusulinella nanothompsoni

Phoberoblatta grandis

Adiaphtharsia ferrea

Fusulinella paradevexa

Phoberoblatta reticulata

Adinocrinus

Fusulinella rara

Phoebodus

Adiphlebia

Fusulinella remissa

Phoebodus densneptuni

Adiphlebia lacoana

Fusulinella salutatia

Phoebodus knightianus

Admiranda (foraminifera)

Fusulinella soligalichi

Phoenixites sulcatus

Admirandopora

Fusulinella stricta

Pholadella

Adnatoceras

Fusulinella texana

Pholiderpeton

Adnatoceras alaskense

Fusulinella thompsoni

Pholiderpeton attheyi

Adocetocystis

Gacina

Pholiderpeton bretonense

Adolarryia

Galateacrinus

Pholiderpeton scutigerum

Adolarryia bairdi

Galateacrinus coacervatus

Pholidocidaris

Adolfia

Galateacrinus gossameri

Pholidogaster

Aechmina

Gallotupus

Pholidogaster pisciformis

Aechminella

Gallotupus oudardi

Phosphannulus

Aechminella buchanani

Galtopora

Phractopora

Aechminella trispinosa

Gamizyga

Phragmodictya

Aedoeophasma

Gamizyga corpulentissima

Phrenophoria

Aedoeophasma anglica

Gamizyga expansa

Phricodothyris

Aenigmacaris

Gamizyga girtyi

Phricodothyris asiatica

Aenigmatarbus

Gamizyga morningstarae

Phricodothyris reticulariformis

Aenigmatarbus rasteli

Gamizyga nitida

Phricodothyris septata

Aenigmatella

Gangamophyllum

Phtanomiamia

Aenigmatella comparabilis

Ganorhynchus

Phtanomiamia gui

Aenigmatoceras

Ganorhynchus oblongus

Phthanocoris

Aenigmatoceras rhipaeum

Garwoodia

Phthanocoris occidentalis

Aenigmatodes

Garwoodia gregaria

Phthinomylacris medialis

Aenigmatodes danielsi

Gastrioceras

Phthinomylacris pauper

Aenigmatopsis

Gastrioceras (Lissogastrioceras) adaense

Phylloblatta indecisa

Aenigmatopsis regularis

Gastrioceras (Lissogastrioceras) fittsi

Phylloporella

Aerosaurus

Gastrioceras araium

Phyllothecotriletes aggregatus

Aerosaurus greenleeorum

Gastrioceras attenuatum

Phyllothecotriletes belloyensis

Aesiocrinus

Gastrioceras formosum

Phyloblatta

Aesiocrinus detrusus

Gastrioceras glenisteri

Phyloblatta aliena

Aesopichthys

Gastrioceras liratum

Phyloblatta alutacea

Aesopichthys erinaceus

Gastrioceras magoffinense

Phyloblatta alykaevensis

Aethophlebia singularis

Gastrioceras melvillensis

Phyloblatta amabilis

Aetophlebia

Gastrioceras montgomeryense

Phyloblatta angustata

Aexitrophocrinus

Gastrioceras occidentale

Phyloblatta anonyma

Affinocrinus

Gastrioceras prone

Phyloblatta arealata

Affinocrinus grandis

Gastrioceras retiferum

Phyloblatta bertrandi

Affinocrinus normalis

Gastrochaenolites

Phyloblatta biramosa

Affinocrinus progressus

Gattendorfia

Phyloblatta brevicubitalis

Afghanospirifer

Gattendorfia (Gattendorfia) bransoni

Phyloblatta brongniartula

Afghanospirifer burgutschensis

Gattendorfia (Gattendorfia) costata

Phyloblatta carbonica

Agaeoleptoptera

Gattendorfia crassa

Phyloblatta chunyensis

Agaeoleptoptera uniotempla

Gattendorfia jacquelinae

Phyloblatta curvinervosa

Aganaster

Gattenpleura

Phyloblatta didierana

Aganaster gregarius

Gaulocrinus

Phyloblatta difficilis

Agaricocrinus

Gegenemene

Phyloblatta distincta

Agassizocrinus

Gegenemene sinuosa

Phyloblatta diversipennis

Agassizodus

Geinitzella

Phyloblatta dubia

Agassizodus variabilis

Geinitzina

Phyloblatta fera

Agathiceras ciscoense

Geisina

Phyloblatta flabellata

Agathiceras frechi

Geisina retiferiformis

Phyloblatta fontanensis

Agathocrinus

Geisonocerina

Phyloblatta fritschiana

Ageleodus

Gelasinocrinus

Phyloblatta fritschii

Ageleodus pectinatus

Gelasinocrinus revimentus

Phyloblatta furcatella

Aglaocrinus

Geminitheca

Phyloblatta fusca

Aglaocrinus compactus

Gemmulicosta gjeliensis

Phyloblatta gaudryi

Aglaocrinus magnus

Genentomum

Phyloblatta geinitzi

Agmoblastus

Genentomum subacutum

Phyloblatta germana

Agmoblastus caddense

Genentomum validum

Phyloblatta gimmi

Agnesia

Geniculifera

Phyloblatta grosjeani

Agnesia acuta

Geniculifera brevicula

Phyloblatta henneni

Agnesia prosseri

Gennaeocrinus

Phyloblatta hilliana

Agnesia reticulata

Genomosperma

Phyloblatta incerta

Agniesella wurmi

Genomosperma kidstoni

Phyloblatta indistincta

Agogoblattina

Genuclymenia keepitensis

Phyloblatta irregularis

Agogoblattina occidua

Georhithronella

Phyloblatta jeffersoniana

Aipoceras

Gephyrostegus

Phyloblatta kansasia

Airtonia

Gephyrostegus bohemicus

Phyloblatta khalfini

Akagophyllum neimongolense

Gephyrostegus watsoni

Phyloblatta kuznetskiensis

Akagophyllum polygonalis

Gerablattina

Phyloblatta latebricola

Akiyosiphyllum

Geralycosa

Phyloblatta lawrenceana

Akmonistion

Geralycosa fritschi

Phyloblatta levis

Akmonistion zangerli

Gerapompus

Phyloblatta lineata

Aktubites

Gerapompus blattinoides

Phyloblatta majuscula

Aktubites trifidus

Gerapompus extensus

Phyloblatta manca

Alanstukella

Gerapompus schucherti

Phyloblatta manebachensis

Alanstukella rossica

Gerarianus

Phyloblatta martiusana

Alanympha

Gerarianus commentryanus

Phyloblatta multinervosa

Alanympha richardsoni

Gerarites

Phyloblatta munda

Alaoceras

Gerarites commentryi

Phyloblatta obscurella

Alaoceras bajtalense

Geraroides

Phyloblatta obsoleta

Alaoceras parvum

Geraroides maximus

Phyloblatta occidentalis

Albaillella

Gerarulus

Phyloblatta paulitransversinervis

Albaillella indensis

Gerarulus radialis

Phyloblatta perangusta

Albaillella paradoxa

Gerarus

Phyloblatta picturata

Albalimulus

Gerarus bruesi

Phyloblatta portuensis

Albalimulus bottoni

Gerarus collaris

Phyloblatta prior

Alcicornopteris

Gerarus constrictus

Phyloblatta propinqua

Alcicornopteris convoluta

Gerarus danielsi

Phyloblatta purkynei

Alcimocrinus

Gerarus fischeri

Phyloblatta reniformis

Alethopteris

Gerarus mazonus

Phyloblatta resitensis

Alethopteris valida

Gerarus symmetricus

Phyloblatta rosasi

Alexahymen

Gerarus teutonicus

Phyloblatta savagei

Alexahymen aestatis

Gerarus vetus

Phyloblatta semiplena

Algites

Geratarbus

Phyloblatta separanda

Alinkioduncanella

Geratarbus bohemicus

Phyloblatta sibirica

Alispirifer

Geratarbus lacoei

Phyloblatta solida

Alispirifer contractus

Gerephemera

Phyloblatta splendens

Alispirifer laminosus

Gerephemera simplex

Phyloblatta stirrupi

Alisporites

Geroneura

Phyloblatta thieryi

Alitaria

Geroneura ovata

Phyloblatta transversalis

Aljutovella

Geroneura wilsoni

Phyloblatta triangularis

Allagecrinus

Geropteron

Phyloblatta undata

Allenypterus

Geropteron arcuatum

Phyloblatta wettinensis

Allenypterus montanus

Gerronostroma raclaviense

Phylomylacris

Allocatillocrinus

Gertholites

Phylomylacris brevis

Alloiopteris

Gertholites haikawai

Phylomylacris chailleti

Alloiopteris quercifolia

Gervillia

Phylomylacris chavyi

Allonema

Gervillia longa

Phylomylacris cor

Alloprosallocrinus

Geyeronaotia

Phylomylacris fougerollesi

Allorhynchoides

Gibbochonetes

Phylomylacris godoni

Allorhynchus

Gibbochonetes poletaevi

Phylomylacris lafittei

Allorisma

Gibbonucula

Phylomylacris lensiana

Allorisma altirostrata

Gigantoproductus

Phylomylacris lievina

Allorisma costatum

Gigantoproductus giganteus

Phylomylacris mantidioides

Allosocrinus

Gigantopteris

Phylomylacris nervosa

Allosocrinus bronaughi

Gigasbia

Phylomylacris parallelus

Allotropiochisma

Gilbertsocrinus

Phylomylacris pintrandi

Allotropiochisma (Alligia) flabellum

Gilbertsocrinus intersculptus

Phylomylacris pruvostiana

Allotropiochisma (Allotropiochisma) uddenitense

Gilbertsocrinus rarispinus

Phylomylacris reisbachensis

Allotropiophyllum

Gilliodus

Phymatopleura

Alphachoristites

Gilliodus peyeri

Phymatopleura brazoensis

Alpinoschwagerina nestelli

Gillocystis

Phymatopleura heteropleura

Altadema

Gilmocrinus

Phymatopleura nodosa

Altadema altadema

Gilsonia

Physematites

Altadema convexa

Gilsonia titana

Physematites charis

Altadema lira

Ginkgophyllum

Physonemus

Alternifenestella

Ginkgophytopsis

Physonemus arcuatus

Alternifenestella major

Girtya

Physonemus asper

Althansia

Girtya pennsylvanica

Physonemus hamuspiscatorius

Althansia sahneri

Girtycoelia

Physonemus mirabilis

Alurites

Girtycoelia typica

Physonemus pandatus

Alurites asianus

Girtyella

Physonemus striatus

Alurites costatus

Girtyella cedarensis

Physonemus subteres

Alurites postcostatus

Girtyella sacculus

Physospongia

Alurites subcarinatus

Girtyoceras

Physostoma

Alurites ventriplanus

Girtyoceras glabrum

Physostoma elegans

Alveolites

Girtyoceras gordoni

Phytokneme

Amabilicrinus

Girtyoceras hamiltonense

Phytokneme rhodona

Amabilicrinus bahramensis

Girtyoceras intracostatum

Piesbergala

Amabilicrinus iranensis

Girtyoceras latum

Piesbergala leipnerae

Amadeusicrinus

Girtyoceras meslerianum

Piesbergbrodia

Amadeusicrinus subpentagonalis

Girtyoceras modestum

Piesbergbrodia tristrata

Amandophyllum

Girtyoceras multicameratum

Piesbergtupus

Amarixys

Girtyoceras primum

Piesbergtupus hielscheri

Amarixys gracilis

Girtyoceras waitei

Pietzschia

Amarixys stellaris

Girtyoceras welleri

Pilasporites

Amarixys sulcata

Girtyocoelia

Pileochiton

Amaurotoma

Girtypecten

Pileospongia

Amaurotoma kljasmensis

Girtyspira

Pileospongia lopados

Amaurotoma knighti

Girtyspira canaliculata

Piloricilla

Amaurotoma leavenworthana

Girtyspira fusiformis

Pilosisporites

Amaurotoma subangulatum

Girtyspira germanica

Piltonia

Amaurotoma subsinuata

Girtyspira inflata

Pindorama

Amazonoproductus

Girtyspira microspirula

Pindorama nordestina

Amazonoproductus amazonensis

Girtyspira minuta

Pinna

Ambloblatta

Girtyspira pygmaea

Pinna (Sulcatopinna) missouriensis

Ambloblatta bassleri

Girvanella

Pinnularia capillacea

Amblymylacris

Girvanella problematica

Pintoceras

Amblymylacris clintoniana

Gissocrinus

Pintoceras postvenatum

Amblymylacris harei

Glabrocingulum

Pintopinna

Amblypterus stewarti

Glabrocingulum (Ananias) seminudum

Pintopinna martinsnetoi

Amblysiphonella

Glabrocingulum (Ananias) tularosaensis

Pipadentalium

Amblysiphonella barroisi

Glabrocingulum (Ananias) welleri

Pipadentalium protruberans

Amblysiphonella hidensis

Glabrocingulum (Glabrocingulum) coronulum

Pirasocrinus

Amblysiphonella zhaijiangensis

Glabrocingulum (Glabrocingulum) glans

Pithodea

Ambocoelia

Glabrocingulum (Glabrocingulum) granulosum

Pithodea americana

Amboneura

Glabrocingulum (Glabrocingulum) mephitifontis

Pithodea amplissima

Amboneura klosei

Glabrocingulum (Glabrocingulum) parasolum

Pithodea suturalis

Ambozone

Glabrocingulum (Glabrocingulum) parvanodum

Pithodea tornatilis

Ambozone peoriensis

Glabrocingulum (Stenozone) argentinus

Pitus

Ambozone verneuli

Glabrocingulum amotapense

Pitus antiqua

Amelacanthus

Glabrocingulum angulosa

Pityosporites

Amelacanthus sulcatus

Glabrocingulum armstrongi

Placopterina

Ameropiltonia

Glabrocingulum atomarium

Placopterina ohioensis

Amesopleura novamexicana

Glabrocingulum beedei

Plagioblatta

Amesopleura texana

Glabrocingulum beggi

Plagioblatta campbelli

Ametretus

Glabrocingulum binodosum

Plagioblatta cockerelli

Ametretus laevis

Glabrocingulum chesterensis

Plagioglypta

Ametroblatta

Glabrocingulum ellenae

Plagioglypta annulostriata

Ametroblatta strigosa

Glabrocingulum globosum

Plagioglypta meekiana

Ameura

Glabrocingulum grayvillense

Plagioglypta numerosa

Ameura missouriensis

Glabrocingulum interstrialis

Plagiozamites planchardii

Ammobaculites

Glabrocingulum minutum

Planalvus

Ammodiscella

Glabrocingulum obesum

Planalvus densa

Ammodiscus

Glabrocingulum pustulum

Planalvus gibberosa

Ammodiscus anceps

Glabrocingulum quadrigatum

Planetoceras

Ammodiscus incertus

Glabrocingulum stellaeformis

Planetoceras invenustum

Ammonellipsites

Glabrocingulum wannense

Planetoceras janischevskyi

Ammonellipsites asiaticus

Glaphurochiton

Planetoceras schartimiense

Ammonellipsites clitheroensis

Glaphyrites

Planikeeneia pristina

Ammonellipsites djaprakensis

Glaphyrites angulatus

Planisporites

Ammonellipsites princeps

Glaphyrites anguloumbilicatus

Planoarchaediscus

Ammonellipsites serus

Glaphyrites depressus

Planoendothyra

Ammovertella

Glaphyrites embolicus

Planolites montanus

Ammovertella inversa

Glaphyrites excelsus

Planomartus

Amorphoblatta brongniarti

Glaphyrites fayettevillae

Planomartus krejcii

Amousus

Glaphyrites fornicatus

Planoproductus

Amousus mazonus

Glaphyrites holmesi

Planorbis

Ampeliptera

Glaphyrites hyattianus

Planospirodiscus

Ampeliptera limburgica

Glaphyrites kansasensis

Platephemera

Ampelocrinus

Glaphyrites latus

Platephemera antiqua

Ampelocrinus convexus

Glaphyrites lineatus

Platicytes

Amphibamus

Glaphyrites micromphalus

Platicytes lioparadus

Amphibamus grandiceps

Glaphyrites millsi

Platyblatta

Amphiboliacridites

Glaphyrites moorei

Platyblatta propria

Amphiboliacridites joanesi

Glaphyrites morrowensis

Platyblatta steinbachensis

Amphicrinus

Glaphyrites multicavus

Platyblattina ampla

Amphipeltis

Glaphyrites nevadensis

Platyceras

Amphipeltis paradoxus

Glaphyrites pararhymnus

Platyceras (Orthonychia) compressum

Amphipsalidocrinus

Glaphyrites postsolidus

Platyceras (Orthonychia) ivanovi

Amphiscapha

Glaphyrites raymondi

Platyceras (Orthonychia) occidens

Amphiscapha (Cylicioscapha) texana

Glaphyrites rhymnus

Platyceras (Platyceras) parasiticum

Amphiscapha browni

Glaphyrites sakmarensis

Platyceras (Platyceras) subelegans

Amphiscapha calix

Glaphyrites solidus

Platyceras angustum

Amphiscapha catilloides

Glaphyrites striatus

Platyceras encloides

Amphiscapha intermedius

Glaphyrites submodestus

Platyceras evolutus

Amphiscapha marginatus

Glaphyrites subplicatus

Platyceras glenparkensis

Amphiscapha muricata

Glaphyrites sultanaevi

Platyceras latum

Amphiscapha reedsi

Glaphyrites uralensis

Platyceras munsteriana

Amphiscapha subquadrata

Glaphyrites warei

Platyceras nasutum

Amphiscapha subrugosa

Glaphyrites welleri

Platyceras oxynotum

Amphissites

Glaphyrophlebia

Platyceras paralium

Amphissites bushi

Glaphyrophlebia delicatula

Platyceras subrotundum

Amphissites centronotus

Glaphyrophlebia pusilla

Platyceras vetusta

Amphissites dattonensis

Glaphyrophlebia pygmaea

Platyclymenia (Platyclymenia) alterna

Amphissites marginiferus

Glaphyrophlebia wettinensis

Platyclymenia (Platyclymenia) eurylobica

Amphissites miseri

Glaukerpeton

Platyclymenia (Platyclymenia) teicherti

Amphissites nodosus

Glaukerpeton avinoffi

Platyconcha crenimarginis

Amphissites rugosus

Glaukosocrinus

Platyconcha dunlopiana

Amphissites wapanuckensis

Glaukosocrinus berryi

Platyconcha hindi

Amphoracrinus

Gleboceras

Platycrinites

Amplexizaphrentis

Gleboceras mirandum

Platycrinites crokeri

Amplexizaphrentis illizidensis

Glikmanius

Platycrinites testudo

Amplexocarinia

Glikmanius occidentalis

Platyfundocrinus

Amplexopora

Globacrocrinus

Platygoniatites

Amplexus

Globiella

Platygoniatites molaris

Amplexus coralloides

Globiella rossiae

Platygoniatites nudus

Amusium

Globiella umariensis

Platygoniatites omniliratus

Amyelon

Globivalvulina

Platygoniatites rhanemensis

Amyelon radicans

Globivalvulina bulloides

Platygoniatites superior

Amygdalophylloides

Globobulimorpha

Platyhexacrinus

Amygdalophyllum

Globobulimorpha costata

Platymylacris

Amynilyspes

Globocrinus

Platymylacris paucinervis

Amynilyspes crescens

Globodoma

Platyostoma

Amynilyspes fatimae

Globodoma altavittata

Platyostomella

Amynilyspes springhillensis

Globodoma nodosa

Platyostomella scotoburdigalensis

Amynilyspes typicus

Globodoma ouralica

Platyrachella

Amynilyspes wortheni

Globodoma spironema

Platyrhinops

Anabathra

Globoendothyra

Platyrhinops fritschi

Anabathra pulcherrima

Globosochonetes

Platyrhinops lyelli

Anachoropteris

Globosoproductus

Platysaccus

Anagesthes

Globozyga

Platyschisma

Anagesthes affinis

Globozyga littonana

Platyschisma barrisi

Ananias

Globozyga mediocris

Platyschisma cirroides

Ananias marcouiana

Globozyga reticulata

Platyschisma depressa

Ananias nana

Globozyga subcorpulenta

Platyschisma helicoides

Ananias nevadensis

Globozyga tenuistriata

Platyschisma laudoni

Ananias nodocostatus

Globusia

Platyschisma lingua

Ananias talpaensis

Glomeropsis

Platyschisma ovoidea

Ananias weyeri

Glomeropsis crassa

Platyschisma vitrea

Anapiculatisporites

Glomeropsis magna

Platysomus

Anapiculatisporites rallus

Glomeropsis ovalis

Platysomus circularis

Anapiculatisporites variornatus

Glomodiscus

Platysomus parvulus

Anarkemina

Glomospira

Platysomus superbus

Anarkemina winsdoriensis

Glomospiranella

Platysomus swaffordae

Anatolipora

Glomospirella

Platystegos

Anatolipora carbonica

Glomospiroides

Platystegos loricatum

Anaxeodesmus

Glossites

Platyxystrodus

Anaxeodesmus diambonotus

Glossodus

Platyxystrodus occidentalis

Anchicodium

Glossodus lingusbovis

Platyxystrodus striatus

Anchicrinus

Glossodus marginatus

Platyzona

Anchicrinus planulatus

Glossus

Platyzona cirriformis

Anchicrinus rugosus

Glyphiolobus

Platyzona hespera

Anchineura

Glyphiolobus ardmorensis

Platyzona trilineata

Anchineura hispanica

Glyphiolobus latisellatus

Plaxocrinus

Anconastes

Glyphiolobus lunula

Plaxocrinus crassidiscus

Anconastes vesperus

Glyphiolobus marioni

Plectofusulina

Ancylus

Glyphiolobus reliquus

Plectofusulina amygdala

Anderssonites excessa

Glyphiolobus sholakensis

Plectogyra

Anebos

Glyphodeta

Plectogyranopsis

Anebos phrixos

Glyphodeta terebriformis

Plectonotus hapsideus

Anegertus

Glyphodeta zonata

Plectophyllum

Anegertus cubitalis

Glyptoconcha

Plectophyllum lowryi

Aneimites

Glyptoconcha elegans

Plectorhynchonella

Aneimites acadica

Glyptopleura

Plectospira

Anematina

Glyptopleura angulata

Plectospira problematica

Anematina permiana

Glyptopleura inopinata

Plectostaffella

Anematina proutana

Glyptopleurina

Plectostaffella dualis

Anematina rockymontanum

Glyptopora

Plectostaffella jakhensis

Anemetocrinus

Glyptospira

Plectostaffella lukensis

Anepitedius

Glyptospira quadriserrata

Pleophrynus

Anepitedius giraffa

Glyptotomaria

Pleophrynus ensifer

Angarolaminariopsis

Glyptotomaria apiarium

Pleophrynus hawesi

Angarolaminariopsis zinovae

Gnathacanthus

Pleophrynus verrucosus

Angioblastus

Gnathacanthus striatus

Plerophyllum

Angioblastus dotti

Gnathacanthus triangularis

Plesioidischia

Angioblastus ellesmerensis

Gnathodus

Plesioselachus

Anglolithoneura

Gnathodus texanus

Plesioselachus macracanthus

Anglolithoneura magnifica

Gnathorhiza

Plesiosiro

Anglopterum

Gnathorhiza serrata

Plesiosiro madeleyi

Anglopterum magnificum

Gnetopsis

Pleuracanthus

Angochitina

Goldenbergia elongata

Pleuracanthus cylindricus

Angulodus

Goldenbergia formosa

Pleuracanthus levissimus

Anguloserra

Goleocrinus

Pleuracanthus robustus

Anguloserra austriaca

Gomphodus

Pleurocaris

Anguloserra carinthiaca

Gomphostrobus

Pleurocaris annulatus

Angyomphalus

Gondolella

Pleurocrinus

Angyomphalus basicostatus

Gondolella lingulata

Pleurodictyum

Angyomphalus congletonensis

Gondolella merrilli

Pleurodus

Angyomphalus depressus

Gondolella sinuata

Pleurodus rankinii

Angyomphalus excavatus

Gondolella sublanceolata

Pleurojulus

Angyomphalus lens

Gondolina

Pleurojulus biornatus

Angyomphalus longicostatus

Gongyloblatta

Pleurojulus levis

Angyomphalus multicostatus

Gongyloblatta fritschi

Pleurophorella

Angyomphalus northviewensis

Goniasma

Pleurophorella elongata

Angyomphalus penelenticulata

Goniasma dalryensis

Pleurophorella parnaibaensis

Angyomphalus radianodosa

Goniasma gzheliensis

Pleurophorus occidentalis

Angyomphalus radians

Goniasma lasallense

Pleuroplax

Anhomalophlebia

Goniasma pygmaea

Pleuroplax attheyi

Anhomalophlebia couloni

Goniasma terebra

Pleuroplax rankinei

Anisotrypa

Goniatites

Pleuroplax woodi

Ankhelasma

Goniatites americanus

Pleuroptyx

Ankyropteris

Goniatites antiquatus

Pleuroptyx clavatus

Anniedarwinia

Goniatites beyrichianus

Pleuropugnoides

Anniedarwinia alabamensis

Goniatites bisati

Pleurorhynchus longipennis

Annularia

Goniatites concentricus

Pleurosiphonella

Annuliconcha

Goniatites crenistria

Pleurotomaria

Annuliconcha interlineata

Goniatites deceptus

Plicambocoelia

Annulispongia

Goniatites eganensis

Plicambocoelia tansathieni

Annulispongia interrupta

Goniatites elegans

Plicatifera

Anobasicrinus

Goniatites evelinae

Plicatifera chaoi

Anobasicrinus brevis

Goniatites falcatus

Plicatifera dubius

Anobasicrinus obscurus

Goniatites gerberi

Plicatiferina

Anomomylacris

Goniatites granosus

Plicatocyrtia zitteli

Anomomylacris cubitalis

Goniatites hudsoni

Plicatospiriferella

Anomphalus

Goniatites lazarus

Plicatospiriferella akachanica

Anomphalus blancus

Goniatites multiliratus

Plicatospiriferella canadensis

Anomphalus rotulensis

Goniatites rodioni

Plicatospiriferella costata

Anomphalus rotulus

Goniatites sowerbyi

Plicatospiriferella grata

Anomphalus straparoliformis

Goniatites sphaericostriatus

Plicatospiriferella ploskajae

Anomphalus umbilicatus

Goniatites spirifer

Plicochonetes

Anomphalus umbilicoliratus

Goniatites stenumbilicatus

Plicochonetes ornatus

Anomphalus verruculiferus

Goniatites striatus

Ploceozyga (Hyphantozyga) cancellata

Anopliopsis

Goniatites truncatus

Plocezyga

Anopliopsis subcarinata

Goniatites warslowensis

Plocezyga acuminata

Anoptychia

Goniocladia

Plocezyga conica

Anozyga

Goniocladia laxa

Plocezyga cordiformis

Anozyga bulla

Goniocladia parva

Plocezyga corona

Antalis

Goniocrinus

Plocezyga costata

Antarctilamna ultima

Goniocyclus

Plocezyga delicata

Antegoniatites

Goniocyclus ammari

Plocezyga excellens

Antegoniatites anticiparis

Goniocyclus elatrous

Plocezyga intermedia

Antheria angusta

Goniocyclus hannibalensis

Plocezyga lineata

Antheria obscura

Gonioglyphioceras

Plocezyga lirata

Antheria tenuis

Gonioglyphioceras gracile

Plocezyga markae

Anthracoblattina

Gonioloboceras

Plocezyga obscura

Anthracoblattina archangelskyi

Gonioloboceras bridgeportense

Plocezyga ornata

Anthracoblattina didyma

Gonioloboceras goniolobus

Plocezyga ornatissima

Anthracoblattina dresdensis

Gonioloboceras gracellenae

Plocezyga percostata

Anthracoblattina gigantea

Gonioloboceras welleri

Plocezyga perminuta

Anthracoblattina meganalis

Gonioloboceratoides

Plocezyga regularia

Anthracoblattina spectabilis

Gonioloboceratoides eliasi

Plocezyga subnodosa

Anthracoblattina striata

Goniomylacris

Plocezyga subquadrata

Anthracoceras

Goniomylacris pauper

Plocezyga tenuilirata

Anthracoceras discus

Goniophora

Plocezyga turbinata

Anthracoceras glabrum

Goniophoria

Ploetzgerarus

Anthracoceras missouriense

Goniophoria carinata

Ploetzgerarus krempieni

Anthracoceras mooreae

Goniotarbus

Plummericrinus

Anthracoceras oklahomense

Goniotarbus angulatus

Plummericrinus expansus

Anthracoceras paucilobum

Goodrichthys

Pluristratoentactinia

Anthracoceras wanlessi

Gooloogongia

Poacites

Anthracoceratites

Gooloogongia loomesi

Poacordaites

Anthracoceratoides

Gordia

Pocononia

Anthracoceratoides serratoides

Gordonites

Pocononia whitei

Anthracocorides

Gordonites filifer

Podtsheremia

Anthracocorides platipes

Gordonites matheri

Poecilodus

Anthracodesmus

Gorgonisphaeridium

Poecilodus foveolatus

Anthracodesmus macconochiei

Gorgonophontes

Poecilodus jonesii

Anthracodromeus

Gorgonophontes peleron

Poecilodus oliquus

Anthracodromeus longipes

Gortanella

Poecilodus parallelus

Anthracomartus

Gosseletina

Pohlispongia

Anthracomartus bohemica

Gosseletina callosa

Pohlsepia

Anthracomartus carcinoides

Gosseletina johnsoni

Pohlsepia mazonensis

Anthracomartus elegans

Gosseletina persimplex

Pojarkovella

Anthracomartus granulatus

Gosseletina portlockiana

Polaricyclus

Anthracomartus hindi

Gosseletina pratteni

Polaricyclus ballardensis

Anthracomartus janae

Gosseletina subglobosa

Polaricyclus bordenensis

Anthracomartus kustae

Gothania

Polaricyclus conkini

Anthracomartus minor

Gothania westfalica

Polaricyclus minimus

Anthracomartus nyranensis

Grabauicrinus

Poleumita

Anthracomartus palatinus

Grabauicrinus xinjiangensis

Polidevcia

Anthracomartus priesti

Graeophonus carbonarius

Polidevcia arata

Anthracomartus radvanicensis

Graffhamicrinus

Polidevcia bellistriata

Anthracomartus triangularis

Graffhamicrinus boellstorffi

Polidevcia browni

Anthracomartus trilobitus

Graffhamicrinus magnijkus

Polidevcia sharmani

Anthracomartus voelkelianus

Graffhamicrinus subcoronatus

Polidevcia stevensiana

Anthracomya

Graffhamicrinus waughi

Polidevcia tulcumbensis

Anthraconauta

Grammatodon

Poliochera

Anthraconeilo

Grammatopteris

Poliochera gibbsi

Anthraconeilo taffiana

Grammysia

Poliochera glabra

Anthracophausia

Granatocrinus

Poliochera punctulata

Anthracophausia ingelsorum

Granatocrinus granulatus

Polioptenus

Anthracophrynus

Grandispirifer

Polioptenus bertrandi

Anthracophrynus tuberculatus

Grandispora

Polioptenus chanderisi

Anthracoporella

Granulatisporites

Polioptenus decheni

Anthracoptilus

Granulatisporites varigranifer

Polioptenus elegans

Anthracoptilus perrieri

Granuliferella

Polioptenus mancomediali

Anthracopupa

Graphiadactyllis

Polusocrinus

Anthracopupa ohioensis

Graphiadactyllis arkansana

Polusocrinus rosa

Anthracosaurus

Graphiadactylloides

Polycladiopora

Anthracosaurus lancifer

Graphiocrinus

Polycladiopora pinnata

Anthracosaurus russelli

Graphiptilus

Polycreagra

Anthracosiro

Graphiptilus heeri

Polycreagra elegans

Anthracosiro fritschii

Greererpeton

Polyentactinia

Anthracosiro woodwardi

Greererpeton burkemorani

Polyentactinia aranea

Anthracospirifer

Griffithidella

Polyentactinia craticulata

Anthracospirifer arcoensis

Griffithidella alternata

Polyentactinia polygonia

Anthracospirifer birdspringensis

Griffithidella doris

Polyernus

Anthracospirifer curvilateralis

Griffithides

Polyernus complanatus

Anthracospirifer leidyi

Griffithides (Griffithides) majus

Polyetes

Anthracospirifer occiduus

Griffithides (Griffithides) megalopos

Polyetes furcifer

Anthracospirifer oliveirai

Griffithides (Metaphillipsia) bufo

Polyetes problematica

Anthracospirifer shawi

Griffithides convexicaudatus

Polyetoblatta calopteryx

Anthracosta

Grovesella

Polyetopsis

Anthracosta duboisi

Grovesella nevadensis

Polyetopsis elegantissima

Anthracotarbus

Grovesella pseudoglobulosa

Polygnathodella

Anthracotarbus hintoni

Grovesella tabasensis

Polygnathodella ouachitensis

Anthracothremma

Gruntia

Polygnathus

Anthracothremma robusta

Grypoblattina

Polygnathus wapanuckensis

Anthrakoris

Grypoblattina chandesrisi

Polygonocrinus

Anthrakoris aetherius

Grypoblattina phaseolus

Polygonocrinus spiniferus

Anthroosasterias stibareus

Grypoblattina robineti

Polymorphocodium

Antiquatonia

Grypoblattites

Polymorphocodium lapparenti

Antiquatonia cooperi

Grypoblattites flabellatus

Polymorphopteris

Antiquatonia costata

Grypoblattites tortuosus

Polymorphopteris polymorpha

Antiquatonia insculpta

Gsollbergella

Polyosteorhynchus

Antiquatonia pernodosa

Gudmania

Polyosteorhynchus simplex

Antiquatonia portlockianus

Gudmania darumbalae

Polypora

Antlerpeton

Guerichia

Polypora ellesmerensis

Antlerpeton clarkii

Guerichiella

Polypora elliptica

Antliodus

Guilinospirifer

Polypora fujimotoi

Antonoceras

Gulou

Polypora gigantea

Antonoclema

Gulou carpenteri

Polypora gzhelensis

Antronaria

Gulou oudardi

Polypora ignota

Anulofusulinella

Gulpenia

Polypora neerkolensis

Anulofusulinella palma

Gulpenia limburgensis

Polypora nodolinearis

Anulofusulinella prima

Gundolficeras bicaniculatum

Polypora pustulosa

Anzinia

Gunnellodus bellistriatus

Polyrhizodus

Anzinia thevenini

Gunterichthys

Polyrhizodus attenuatus

Aorocrinus

Gunterichthys lehiensis

Polyrhizodus colei

Aorocrinus formosus

Gutschickia

Polyrhizodus digitatus

Aoujgalia

Gutschickia porosa

Polyrhizodus elongatus

Apachella

Gutturensis

Polyrhizodus magnus

Apachella glabra

Gutturensis neilsoni

Polyrhizodus pusillus

Apachella powwowensis

Gymnophyllum

Polysacos

Apachella turbiniformis

Gypospirifer

Polysacos vickersianum

Aparchites

Gyracanthus

Polysentor

Apateon intermedius

Gyracanthus obliquus

Polysentor gorbairdi

Apatognathus

Gyroblatta

Polytaxis

Apatorhynchus

Gyroblatta clarki

Polytremaria

Aphantites

Gyroblatta scapularis

Polytremaria beggi

Aphantites aenigmaticus

Gyroceras

Polytremaria catenata

Aphantomartus

Gyrolepis

Polytylites

Aphantomartus areolatus

Gyrolepis rankinii

Polyxylon

Aphantomartus pustulatus

Gyrolithes

Polyxylon elegans

Aphelaeceras

Gyronema

Pontocypris

Aphelaeceras arkansanum

Gyronema altispiralis

Popofskyellum

Aphelakardia

Gzheloceras

Porcellia

Aphelakardia alternistriata

Gzheloceras antiquum

Porcellia chesterensis

Aphelakardia indianense

Gzheloceras donetzense

Porcellia crassinoda

Aphelecrinus

Gzheloceras faticanum

Porcellia obliquinoda

Aphelomylacris

Gzheloceras maklai

Porcellia puzo

Aphelomylacris modesta

Gzheloceras memorandum

Porcellia rectinoda

Aphractus

Gzheloceras nikitini

Porierpeton

Aphractus adempta

Gzheloceras orthocostatum

Poroblattina

Aphralysia

Gzheloceras striatum

Poroblattina germari

Aphrophylloides

Gzheloceras tacitum

Poroblattina parvula

Aphrophyllum

Habadraites

Poroblattina rotundata

Aphthoroblattina

Habadraites kulosiensis

Porostrobus

Aphthoroblattina eggintoni

Habadraites supralatus

Porsguenospongia

Aphthoroblattina fascigera

Habadraites weyeri

Porsguenospongia lejalnicolae

Aphthoroblattina irregularis

Hadentomum

Portlockia

Aphthoroblattina johnsoni

Hadentomum americanum

Portlockiella

Apiculatasporites

Hadrachne

Portlockiella blanda

Apiculatasporites caperatus

Hadrachne horribilis

Portlockiella elegans

Apiculatisporites

Hadroblastus

Portlockiella kentuckyensis

Apiculiretusispora papillata

Hadronector

Posidonia

Apiculiretusispora sparsa

Hadronector donbairdi

Posidonia becheri

Apithanus

Hadroneuria heidei

Posidonia girtyi

Apithanus jocularis

Hadrophragmos

Posidoniella

Apographiocrinus

Hadrophragmos soleniscus

Postibulla

Apographiocrinus platybasis

Hadrophyllum ovale

Postibulla westergaardi

Apographiocrinus typicalis

Hadropipetta

Poterioceras

Apopappus

Hadropipetta ancora

Poteriocrinites

Apopappus guernei

Haenoblattina

Poteriocrinus dignatus

Apophthegma

Haenoblattina rarinervis

Pothocites

Apophthegma anale

Haeretocrinus

Potoniea

Apophthegma saxonicum

Haeretocrinus missouriensis

Praedaraelites

Apophthegma sterzeli

Haeretocrinus wagneri

Praedaraelites aktubensis

Apotocardium

Halichondrites

Praedaraelites loeblichi

Apotocardium cordatum

Hallipterus lacoanus

Praedonezella

Apotocardium lanterna

Halogetocrinus

Praehorridonia

Apotocardium latifasciatum

Halogetocrinus boellstorffae

Praeleda compar

Apotocardium obliquum

Halogetocrinus paucus

Praemichelinia

Apotocardium peculiare

Halysiocrinus

Praemyonia

Apotocardium plautum

Hamburgia

Praeobsoletes

Apotocardium polymitarium

Hamburgia chappelensis

Praeobsoletes burkemensis

Apotocardium pomachacanum

Hamiltonichthys

Praeobsoletes curtus

Apotocardium snideri

Hamiltonichthys mapesi

Praeobsoletes pauper

Apotypoma

Hammatocyclus

Praepilatina

Apotypoma arndti

Hammatospira

Praeramunculus

Apousiella

Hammatospira bellula

Praeundulomya

Aquilonites

Hammondella

Praewentzelella

Arabellites

Hammondella crassa

Praewentzelella multiseptata

Arachnastraea

Hammondella globosa

Prantlites bohemicus

Arachniophyllum

Hapaloptera

Prehoffmannia

Arachnolasma

Hapaloptera gracilis

Prehoffmannia milleri

Arachnolasmella

Hapaloptera obovata

Premnoblatta duffieuxi

Arachnometa

Hapaloptera parallela

Preptopremnum

Arachnometa tuberculata

Haplentactinia

Preshumardites

Arachnostega

Haplentactinia rhinophyusa

Preshumardites gaptankensis

Arachnostega gastrochaenae

Haplistion

Preshumardites illinoisensis

Araeonema

Haplistion apletum

Preshumardites stainbrooki

Araeonema microspirulata

Haplistion armstrongi

Priapulites

Araeonema nacreformis

Haplistion sphaericum

Priapulites konecniorum

Araeonema novamexicanum

Haplolasma

Primakollaria

Araeonema virgatum

Haplolasma paraarciferum

Primakollaria amicorum

Arakespongia

Haplophlebium

Primitiella

Arakespongia mega

Haplophlebium barnesii

Primogoniatites

Arcanoceras

Haplophragmina

Primogoniatites fundator

Arcanoceras burmai

Haplostigma

Primorella

Arcanoceras furnishi

Hapsiphyllum

Primorella elegans

Arceodomus

Haptodus

Primorella ivanovi

Arceodomus cortazari

Haptodus garnettensis

Prioniodina

Arceodomus glabrata

Harajicadipterus

Prioniodina excavata

Arceodomus japonicum

Harajicadipterus youngi

Prioniodus

Arceodomus prolata

Hardistiella

Prioniodus altodus

Arceodomus snjatkovi

Hardistiella montanensis

Prioniodus cacti

Archaediscus

Harmostocrinus

Prioniodus dactylodus

Archaemegaptilus

Harpagofututor

Prioniodus galesburgensis

Archaemegaptilus blakelyi

Harpagofututor volsellorhinus

Prionoceras (Imitoceras) werriense

Archaemegaptilus kiefferi

Hasala

Pripyatispirifer

Archaemegaptilus schloesseri

Hasala inferiorsaxonica

Priscomyzon

Archaemioptera

Hassiabole

Priscomyzon riniensis

Archaemioptera carbonaria

Hayasakapora

Priscopedatus

Archaeocalamites

Hayasakapora akiyoshiensis

Priscopedatus nawarensis

Archaeocalamites radiatus

Hayasakapora isaensis

Priscopedatus parvulus

Archaeocalamites scrobiculatus

Hayasakapora otai

Prismopora

Archaeocidaris

Haydenella bihemisphaera

Prismopora digitata

Archaeolithophyllum

Haydenella libera

Prismopora triangulata

Archaeolithophyllum asymmetricum

Haydenella nanusa

Pristicladodus

Archaeolithoporella

Healdia

Pristicladodus goughi

Archaeologus

Healdia caneyensis

Pristodus

Archaeologus falcatus

Healdia cuneata

Pristodus benniei

Archaeometa

Healdia parallela

Pristodus concinnus

Archaeometa nephilina

Healdia simplex

Pristodus falcatus

Archaeophiomusium

Healdia simplicissima

Proallosocrinus

Archaeophiomusium burrisi

Healdiacypris

Proallosocrinus glenisteri

Archaeopitys

Healdianella

Probletocrinus

Archaeopitys eastmanii

Hebetorthoceras

Probletocrinus curtus

Archaeopteridium

Hebetorthoceras brokenarrowense

Probolionia

Archaeopteris

Hederella

Proboscidella

Archaeoptilites

Hedraites

Proboscidella guangxiensis

Archaeoptilites lucasi

Heintzella

Proboscina

Archaeoptilus

Heintzella whitneyi

Proceramala

Archaeoptilus ingens

Helenodora

Proceramala montanensis

Archaeosigillaria

Helenodora inopinata

Prochoroptera

Archaeothyris

Helicocyclus

Prochoroptera calopteryx

Archaeothyris florensis

Helicocyclus formosus

Procochleosaurus

Archaeotiphe

Helicocyclus fuscus

Procochleosaurus jarrowensis

Archaeotiphe barthelemyi

Helicocyclus inornatus

Prodentalium

Archaeotiphe dalmaisi

Helicocyclus laxaris

Prodentalium raymondi

Archaeotiphe didieri

Helicocyclus tianshanicus

Prodentalium sublaeve

Archaeotiphites

Heliosocrinus

Prodromites

Archaeotiphites captiosus

Heliosocrinus neotosus

Prodromites gorbyi

Archaeotiphites petroblattinoides

Heliospongia

Productella

Archaeovenator

Heliospongia excavata

Productella coloradensis

Archaeovenator hamiltonensis

Heliosporites

Productellina

Archaesphaera

Helminthochiton

Productina

Archangelskyblatta

Helminthochiton riddlei

Productina sampsoni

Archangelskyblatta vishniakovae

Helminthochiton simplex

Productorthis

Archeglyphis

Helminthoidichnites

Productorthis aculeata

Archeglyphis crassinervis

Helminthozyga

Productus

Archegogryllus

Helminthozyga costellata

Productus (Diaphragmus) fasciculatus

Archegogryllus priscus

Helminthozyga undulata

Productus altonensis

Archegonus

Helminthozyga vermiculus

Productus arcuatus

Archerpeton

Helodus

Productus concinnus

Archerpeton anthracos

Helodus didymus

Productus giganteus

Archicambala

Helodus incisus

Productus indianensis

Archicambala dawsoni

Helodus mammillaris

Productus inflatus

Archicarabides

Helodus planus

Productus marginicinctus

Archicarabides pater

Helodus rudis

Productus mesialis

Archimastax

Helodus rugosus

Productus ovatus

Archimastax americanus

Helodus simplex

Productus parvus

Archimedes

Helodus turgidus

Productus scitulus

Archimedes regina

Hematites

Productus sedaliensis

Archimulacris

Hematites barbarae

Productus tenuicostus

Archimulacris acadica

Hematites burbankensis

Proedischia

Archimylacridae mirabilis

Hemeristia

Proedischia mezzalirai

Archimylacridae notabilis

Hemeristia occidentalis

Proetides

Archimylacridae pelzi

Hemidiscus

Proetus

Archimylacris

Hemifusulina

Proetus (Pudoproetus) hahni

Archimylacris (Etoblattina) hastata

Hemigordius

Proetus bairdensis

Archimylacris acadica

Hemikreischeria

Profusulinella

Archimylacris delicata

Hemikreischeria geinitzi

Profusulinella apodacensis

Archimylacris incisa

Hemileurus

Profusulinella copiosa

Archimylacris lerichei

Hemiliroceras

Profusulinella eoprisca

Archimylacris lubnensis

Hemiliroceras enucleatum

Profusulinella jamnaensis

Archimylacris parallelum

Hemiliroceras reticulatum

Profusulinella ovata

Archimylacris paucinervis

Hemiliroceras urtasimense

Profusulinella paratimanica

Archimylacris regularis

Hemimylacrella

Profusulinella parva

Archimylacris scalaris

Hemimylacrella leptophlebiopsis

Profusulinella prisca

Archimylacris simoni

Hemimylacrella mammothi

Profusulinella regia

Archimylacris simoniana

Hemimylacris

Profusulinella sokolensis

Archimylacris venusta

Hemimylacris ampla

Progenentomum

Archimylacris westfalica

Hemimylacris bassleri

Progenentomum carbonis

Archiscudderia

Hemimylacris clintoniana

Progoniatites

Archiscudderia coronata

Hemimylacris ramificata

Progoniatites globulus

Archiscudderia paupera

Heminematopora

Progoniatites maghribensis

Archiscudderia problematica

Hemiphoberia

Progoniatites paenacutus

Archiscudderia regularis

Hemiphoberia alternans

Progoniatites pilus

Archiscudderia tapeta

Hemiplethorhynchus

Progoniatites uncus

Architarbus

Hemiplethorhynchus kashmirensis

Progonoblattina

Architarbus hoffmanni

Hemiplethorhynchus subovatum

Progonoblattina heeri

Architarbus minor

Hemitelites hemitelioides

Progonoblattina helvetica

Architarbus rotundatus

Hemithurammina

Progonopteryx

Archiulus

Hemitrypa

Progonopteryx belgica

Archiulus euphoberioides

Hemizyga

Prolecanites

Archiulus glomeratus

Hemizyga (Hemizyga) bilineata

Prolecanites discoides

Archiulus lyelli

Hemizyga (Hemizyga) clathratula

Prolecanites librovitchi

Archiulus xylobioides

Hemizyga (Hemizyga) corbis

Prolecanites lyoni

Archoblattina

Hemizyga (Hemizyga) heliciforma

Prolecanites maeandricus

Archoblattina beecheri

Hemizyga (Plocezyga) abolescens

Prolecanites mapesi

Archoblattina boulei

Hemizyga (Plocezyga) angularis

Prolecanites serpentinus

Archoblattina marcellini

Hemizyga (Plocezyga) convertacostata

Prolecanites stevanovici

Archoblattina maxima

Hemizyga (Plocezyga) tenuis

Prolepidodendron

Archoblattina scudderi

Hemizyga attenuata

Prolepidodendron breviinternodium

Archocyrtium

Hemizyga elegans

Promarginifera

Archocyrtium coronaesimile

Hemizyga illineata

Promexyele

Archocyrtium diductum

Hemizyga inflata

Promexyele bairdi

Archocyrtium lagabriellei

Hemizyga larga

Promexyele peyeri

Archocyrtium sashidai

Hentigia

Promylacris ovale

Arcochiton

Hentigia argops

Promylacris ovalis

Arcochiton raymondi

Heolus

Promytilus

Arctitreta

Heolus providentiae

Promytilus annosus

Arctitreta bioni

Hepaticites

Promytilus illinoisensis

Arctophyllum lugankaensis

Herbstiala

Promytilus pottsvillensis

Arctotypus

Herbstiala herbsti

Promytilus vetulus

Arctotypus diluculum

Herdina

Pronaidites

Arcuaria

Herdina mirificus

Pronaidites arenivorus

Ardmosteges

Heritschioides

Pronaidites carbonarius

Arenicolites longistriatus

Heritschioides columbicum

Pronorites

Areomartus

Hermosanema

Propalingenia

Areomartus ovatus

Hermosanema carinatum

Propalingenia feistmanteli

Argentinala

Hermosanema varium

Proparaparchites

Argentinala cristinae

Heslerodus

Propriopugnus

Argentinonarkemina

Heslerodus divergens

Prosagenodus

Argentinonarkemina amosi

Hesperiella

Proshumardites

Argentiproductus

Hesperiella elongata

Proshumardites aequalis

Aristoceras chkalovi

Hesperiella planorbis

Proshumardites delepinei

Arizonerpeton

Hesperiella robertsi

Proshumardites karpinskii

Arizonerpeton wellsi

Hesperiella thomsoni

Proshumardites morrowanus

Arkacrinus

Hesperoblatta

Proshumardites primus

Arkacrinus constrictus

Hesperoblatta secunda

Proshumardites principalis

Arkacrinus dubius

Hesperoblatta vishniakovae

Proshumardites uralicus

Arkanites

Hesslerides

Prosoleptus

Arkanites relictus

Heteralosia

Prosoleptus lineata

Arltia

Heteralosia beecheri

Prospira

Arltia carnica

Heteralosia slocomi

Prospira burnettensis

Arltia eurycubitalis

Heterangium

Protacrocrinus

Arltia mioanali

Heteraria

Protacrodus

Arltia obsoleta

Heterocaninia

Protagrion

Arltia schmitzi

Heterologellus

Protagrion audouini

Arltia willerti

Heterologellus teichmuellerae

Protencrinus

Armathyraster

Heterologopsis

Proterogyrinus

Armathyraster paradoxis

Heterologopsis ruhrensis

Proterogyrinus scheelei

Armenoceras

Heterologus

Prothalassoceras

Armenocrinus

Heterologus duyiwuer

Prothalassoceras caddoense

Arnoldella

Heterologus langfordorum

Prothalassoceras inexpectans

Arnoldella minuta

Heteropecten

Prothalassoceras inflatum

Arrectocrinus

Heteropecten multiscalptus

Prothalassoceras jaikense

Arrectocrinus iowensis

Heterophyllia

Prothalassoceras kingorum

Arribazona

Heterophyllia angulata

Prothalassoceras notabile

Arribazona devispira

Heterophyllia ornata

Prothyris

Arribazona hesperita

Heterostelechus

Prothyris (Lophoprothyris) crista

Arribazona nodolira

Heterotarbus

Prothyris (Prothyris) acuticarinata

Arthracantha

Heterotarbus ovatus

Prothyris soleniformis

Arthracantha ithacensis

Heterotheca

Protobarinophyton

Arthrolycosa

Heterotheca grievii

Protobarinophyton obrutschevii

Arthrolycosa antiqua

Heterovorhoeffia

Protoblattina bouvieri

Arthrolycosa danielsi

Heterovorhoeffia crassa

Protoblattiniella

Arthromygale

Hexaacrocrinus

Protoblattiniella minutissima

Arthromygale fortis

Hexacrinites

Protoblattinopsis

Arthropitys

Hexacrinites pinnulata

Protoblattinopsis stubblefieldi

Arthropleura

Hexaphyllia

Protocalamites

Arthropleura armata

Hexaphyllia ayzenvergi

Protocalamostachys

Arthropleura britannica

Hexapterospermum

Protocalamostachys arranensis

Arthropleura enodis

Hexecontasoma

Protocanites

Arthropleura maillieuxi

Hexecontasoma carinatum

Protocanites australis

Arthropleura mammata

Hexites

Protocanites hollardi

Arthropleura punctata

Hexites paradoxus

Protocaudina

Arthropoma

Hibbardella

Protocaudina botoni

Arthrostigma

Hibernicoceras

Protoclepsydrops

Arthrostigma gracile

Hierogramma mysticum

Protoclepsydrops haplous

Articheilus

Hikorocodium

Protoclepsydropsis

Artisia

Hillia

Protocteniza

Artisia transversa

Hillia formosa

Protocteniza britannica

Asapheneura

Hillia languida

Protocycloceras

Asapheneura roussini

Hinaclema

Protocycloceras rushense

Asaphestera

Hindeodella brevis

Protodiamphipnoa

Ascodictyon

Hindeodella subtilis

Protodiamphipnoa gaudryi

Ascopora

Hindeodus

Protodictyon

Ascopora muromensis

Hindeodus minutus

Protodictyon pulchripenne

Ascopora oblonga

Hindia

Protognathodus

Ascospongiella

Hippocardia

Protognathodus collinsoni

Ascospongiella capdevilae

Hippocardia alborza

Protognathodus kockeli

Asemoblatta

Hippocardia herricki

Protognathodus kuehni

Asemoblatta brongniartiana

Hippocardia hibernica

Protognathodus meischneri

Asemoblatta danielsi

Hippocardia hydei

Protohyenia

Asemoblatta glamorgana

Hippocardia kermani

Protohyenia janovii

Asemoblatta mazona

Hippocrepina

Protokollaria

Asemoblatta pennsylvanica

Hippocrepina bendensis

Protokollaria ingens

Aseptella

Hiroshimaphyllum

Protolycosa anthracophila

Aseptella satunensis

Hiroshimaphyllum compactum

Protolycosa cebennensis

Aseripterella

Hiroshimaphyllum crassithecum

Protomiamia

Aseripterella sinensis

Hiroshimaphyllum toriyamai

Protomiamia yangi

Asiodictya

Hirsutgerarus

Protomichelinia

Asiodictya rossica

Hirsutgerarus saxonicus

Protoniella

Asketomorpha

Histocrinus

Protonodosaria

Asketomorpha grandis

Hoareicardia

Protopachytylopsis

Asolanus

Hoareicardia cunea

Protopachytylopsis leckwycki

Asphaltina

Hoegia

Protoperla

Aspidiopsis

Holasicia

Protoperla boltoni

Aspidosaurus novomexicanus

Holasicia rasnitsyni

Protoperla westwoodi

Aspidothorax triangularis

Holasicia vetula

Protophasma

Asselodiscus

Holcocrinus

Protophasma dumasi

Assimulia

Holcospermum

Protophasma galtieri

Assimulia (Assimulia) uddenitense

Hollina

Protophasma multidiffusa

Assimulia (Ericina) fracta

Hollinella

Protophyllum

Astarte

Hollinella burlingamensis

Protopirata

Astartella

Holmesella

Protopitys

Astartella clinata

Holmesella crassa

Protoprosbole

Astartella compacta

Holmesella elongata

Protoprosbole straeleni

Astartella meridionalis

Holmesella equilaterata

Protoretepora

Astartella subquadrata

Holmesella ornata

Prototettix

Astartella varica

Holmesella parallelata

Prototettix lithanthraca

Astartella vera

Holmesella parallella

Protovirgularia

Asteracanthus siderius

Holmesella quadrata

Protowentzelella

Asteroarchaediscus

Holmesella rhomboidelis

Protowentzelella permica

Asterolepis

Holmesella speni

Protriticites

Asterolepis verrucosa

Holmesella triangularis

Protriticites globulus

Asterophyllites

Holmesella wapanuckensis

Protriticites lamellosus

Asterophyllites charaeformis

Holoeciscus

Protriticites ovatus

Asteropteris

Holopea

Protriticites ovoides

Asteroptychius

Holopella

Protriticites pseudomontiparus

Asteroptychius ornatus

Holoptychius

Protriticites rotundatus

Asteroptychius semiornatus

Holoptychius hopkinsii

Protriticites semikhatovae

Asterotheca

Holoptychius latus

Protriticites sphaericus

Asterotheca sternbergii

Holoptychius nobilissimus

Protriticites subovatus

Asthenomyelon

Holoptychius serrulatus

Protriticites subschwagerinoides

Asthenomyelon adversale

Holoptychus

Protriticites tokerae

Astreptorhachis

Holothuria

Protriticites variabilis

Astreptorhachis ohioensis

Holurus

Prouddenites

Astreptoscolex

Homacanthus

Prouddenites primus

Astreptoscolex anasillosus

Homacanthus acinaciformis

Pruvostia spectabilis

Astromyelon

Homacanthus delicatulus

Pruvostia villeti

Asturiella

Homacanthus macrodus

Pruvostianus

Asturoceras

Homacanthus microdus

Pruvostianus antegressus

Asymptoceras

Homaloneura

Pruvostiella

Asymptoceras pyxis

Homaloneura berenice

Pruvostiella lecomtei

Asymptoceras tschernovi

Homaloneura bonnieri

Psalixochlaena

Asyncritus

Homaloneura bucklandi

Psalixochlaena cylindrica

Asyncritus reticulatus

Homaloneura dabasinskasi

Psammodus

Asyrinxia

Homaloneura elegans

Psammodus canaliculatus

Atactoblatta

Homaloneura joannae

Psammodus cornutus

Atactoblatta anomala

Homaloneura kiliani

Psammodus expansus

Atelestocrinus

Homaloneura lehmani

Psammodus rugosus

Athabascacrinus

Homaloneura ligeia

Psammodus trapeziformis

Athlocrinus

Homaloneura ornata

Psammosphaera

Athlocrinus dejustus

Homaloneura punctata

Psammosteus

Athyris

Homaloneura redbirdi

Psammosteus granulatus

Athyris bisulcata

Homalophlebia

Psammosteus vermicularis

Athyris bradyensis

Homalophlebia finoti

Psaronius

Athyris globularis

Homalophyllites

Psephodus

Athyrisina

Homaloptila

Psephodus dubius

Atimoblatta

Homaloptila similis

Psephodus magnus

Atimoblatta curvipennis

Homoceras

Psephodus salopiensis

Atimoblatta reducta

Homoceras alveatum

Pseudaktubites

Atokacrinus

Homoceras asselicum

Pseudamussium

Atokacrinus tumulosus

Homoceras coronatum

Pseudarietites

Atrapocrinus

Homoceras haugi

Pseudastrorhiza

Atribonium

Homoceras pamiricum

Pseudaviculopecten

Atrypa

Homoceras schartymense

Pseudestheria

Atrypa jukesii

Homoceras subalveatum

Pseudestheria tenella

Attenosaurus

Homoceratoides

Pseudetoblattina

Attenosaurus indistinctus

Homoceratoides cracens

Pseudetoblattina reliqua

Attenosaurus subulensis

Homoceratoides ferganensis

Pseudoaclisina

Aulacella

Homoceratoides librovitchi

Pseudoaclisina microspirulata

Aulacophoria

Homoioptera

Pseudoaclisina turgida

Aulacotheca

Homoioptera gigantea

Pseudoacridites

Aulertupus

Homoioptera kortumi

Pseudoacridites goldenbergi

Aulertupus tembrocki

Homoioptera latipenne

Pseudoammodiscus

Aulichnites

Homoioptera vorhallensis

Pseudobatostomella

Aulina

Homothetus

Pseudobaylea

Aulina botanica

Homothetus fossilis

Pseudobaylea poperimensis

Aulina rotiformis

Hongyu

Pseudobiella

Auloclisia

Hongyu chowi

Pseudobiella fasciata

Aulocopoides

Horridonia praetimanica

Pseudobigalea

Aulocrinus

Hosieocrinus

Pseudobigalea crista

Aulocystella

Houiblastus

Pseudoblattinopsis

Aulodesocrinus

Howchinia

Pseudoblattinopsis perrieri

Aulokoninckophyllum

Howella

Pseudobornia

Aulokoninckophyllum carinatum

Howisonia

Pseudobornia ursina

Aulophyllum

Howthia

Pseudobradyina

Aulopora

Howthia suttonensis

Pseudobythocypris

Auloprotonia

Hudsonoceras proteum

Pseudobythocypris pediformis

Aurikirkbya

Humboldtiella imbricata

Pseudoconocardium

Aurikirkbya canyonensis

Hunanoproetus

Pseudocyclopteris

Auriptygma

Hustedia

Pseudocyclopteris oblata

Australofenestella

Hustedia mormoni

Pseudodaixinoides

Australokaskia

Hustedia paula

Pseudodaixinoides admirandus

Australopolypora

Hustedia remota

Pseudodaixinoides cincinnatus

Australoscutula

Hustedia texana

Pseudodaixinoides cucumeriformis

Australoscutula ardua

Hutkocrinus

Pseudodaixinoides cylindricus

Australoscutula yooi

Hutkocrinus kermanensis

Pseudodaixinoides honestus

Australospongia

Hyaloptilus

Pseudodaixinoides kalcagaricus

Australosutura

Hyaloptilus minimus

Pseudodaixinoides pseudoartensis

Australosutura llanoensis

Hyalostelia

Pseudodaixinoides quasiplanus

Austroneilsonia

Hydnoangulus

Pseudodaixinoides septaplicatus

Austroneilsonia gundyensis

Hydnoangulus quadratus

Pseudodorlodotia

Austronema elegantissima

Hydrasperma

Pseudodudu

Austrospirifer

Hydrasperma tenuis

Pseudoendothyra

Austroworthenia

Hydreionocrinus

Pseudoendothyra plummeri

Austroworthenia levis

Hydriodictya

Pseudofavosites

Autophyllites

Hydriodictya cyclix

Pseudofouquea

Avicula (TEMPORÄR)

Hydromeda fimbriata

Pseudofouquea cambrensis

Aviculopecten

Hylerpeton

Pseudofusulina

Aviculopecten appalachianus

Hylerpeton dawsoni

Pseudofusulina mediotenebraeus

Aviculopecten arctisulcatus

Hylodecrinus

Pseudofusulina prehuecoensis

Aviculopecten basilicus

Hylonomus

Pseudofusulina rarus

Aviculopecten batesvillensis

Hylonomus acuminatus

Pseudofusulinella

Aviculopecten columbianus

Hylonomus latidens

Pseudofusulinella antiqua

Aviculopecten coxanus

Hylonomus lyelli

Pseudofusulinella delicata

Aviculopecten crenistriatus

Hylonomus wymani

Pseudofusulinella fusiformis

Aviculopecten germanus

Hyloplesion

Pseudofusulinella gravis

Aviculopecten gradicosta

Hyloplesion longicostatum

Pseudofusulinella harbaughi

Aviculopecten halensis

Hymenophyllites

Pseudofusulinella meeki

Aviculopecten inspeciosus

Hymenosoma

Pseudofusulinella nitida

Aviculopecten jennyi

Hymenozonotriletes

Pseudofusulinella praeantiqua

Aviculopecten moorei

Hyneria

Pseudofusulinella prima

Aviculopecten morrowensis

Hyneria lindae

Pseudofusulinella proba

Aviculopecten multilineatus

Hyolithes

Pseudofusulinella splendens

Aviculopecten occidentalis

Hyolithes amosi

Pseudofusulinella thompsoni

Aviculopecten pracaensis

Hyolithes minutissimus

Pseudofusulinella ventricosa

Aviculopecten winchelli

Hyperammina

Pseudofusulinella wheeleri

Aviculopinna

Hyperammina elongata

Pseudofusulinoides akbeiticus

Aviculopinna peracuta

Hyperammina johnsvalleyensis

Pseudogerarus

Aviobreyeria

Hyperammina rugosa

Pseudogerarus scudderi

Aviobreyeria gracilis

Hyperamminoides

Pseudoglomospira

Aviocladus

Hyperamminoides glabra

Pseudohomothetus

Aviocladus pectinatus

Hypergonia

Pseudohomothetus erutus

Aviogramma

Hypergonia agraciada

Pseudokamaena

Aviogramma gracilis

Hypergonia attenuata

Pseudokreischeria

Aviohapaloptera

Hypergonia baldwinensis

Pseudokreischeria pococki

Aviohapaloptera bethouxi

Hypergonia deplanata

Pseudoleperditia

Aviologus

Hypergonia elongata

Pseudolituotuba

Aviologus duquesnei

Hypergonia hoffmani

Pseudolituotubella

Avionptera

Hypergonia illinoiensis

Pseudomariopteris

Avionptera communeaui

Hypergonia kirkbyi

Pseudomariopteris busqueti

Aviorrhyncha

Hypergonia marvinwelleri

Pseudomecynostoma

Aviorrhyncha magnifica

Hypergonia mcoyi

Pseudomecynostoma dubium

Avioxyela

Hypergonia percarinata

Pseudomonotis

Avioxyela gallica

Hypergonia percostata

Pseudomonotis equistriata

Avonia

Hypergonia quadricarinata

Pseudomonotis hawni

Avonia adaucta

Hypergonia tatei

Pseudomonotis millhorni

Avonia aspereta

Hypergonia tenuis

Pseudomulceodens

Avonia gaominensis

Hypergonia turritella

Pseudomulceodens cancellatus

Avonia honeycreekensis

Hypergonia vermicula

Pseudomylacris

Avonia longitubercula

Hypergonia youngiana

Pseudomylacris wettinense

Avonia orbiculata

Hypergoniatites

Pseudonematopora

Avonia phanera

Hypergoniatites exiguus

Pseudonematopora planatus

Avonia pustulifera

Hypergoniatites fusiger

Pseudooedischia

Avonia subtuberculata

Hypergoniatites kardailovkensis

Pseudooedischia sellardsi

Avonichthys

Hypergoniatites tenuiliratus

Pseudopalingenia

Avonichthys manskyi

Hypermegethes

Pseudopalingenia feistmanteli

Axinolobus

Hypermegethes northumbriae

Pseudopaolia

Axinolobus modulus

Hypermegethes pilchi

Pseudopaolia lacoana

Axinolobus quinni

Hypermegethes schucherti

Pseudoparalegoceras

Axiodeaneia

Hyphantozyga

Pseudoparalegoceras bellilineatum

Axiologus

Hyphantozyga fenestrata

Pseudoparalegoceras brazoense

Axiologus thoracicus

Hyphantozyga fusiforma

Pseudoparalegoceras peruvianum

Axoclisia

Hyphantozyga gracilis

Pseudopavona

Axolithophyllum

Hyphantozyga grandis

Pseudopentagonia

Axophyllum

Hyphantozyga knighti

Pseudophillipsia ogivalis

Axophyllum lonsdaleiforme

Hyphantozyga perattenuata

Pseudophillipsia rakoveci

Axophyllum pseudokirsopianum

Hyphantozyga pulchra

Pseudophillipsia semicircularis

Aykhal

Hyphantozyga textilis

Pseudophlegethontia

Aykhal helenae

Hypotetragona

Pseudophlegethontia turnbullorum

Aytonerpeton

Hypselentoma

Pseudophorus

Aytonerpeton microps

Hypselentoma inornata

Pseudopolyernus

Azurduya

Hypselentoma perhumerosa

Pseudopolyernus laminarum

Azurduya chavelensis

Hypselentoma welleri

Pseudopolygnathus

Azurduya cingolanii

Hypselocrinus

Pseudopronorites

Babinops

Hystriculina

Pseudopronorites arkansiensis

Bactrites

Hystriculina hystricula

Pseudopronorites llanoensis

Bactrites carbonarius

Hystriculina wabashensis

Pseudopronorites quinni

Bactrites gaitherensis

Ianthasaurus

Pseudorayella

Bactrites redactus

Ianthasaurus hardestiorum

Pseudorhabdomeson

Bactrites smithianus

Ianthinopsis

Pseudoroemeripora

Bactritimimus

Ianthinopsis conspicua

Pseudorthoceras

Bactritimimus girtyi

Ianthinopsis medialis

Pseudorthoceras knoxense

Bactritimimus ulrichi

Ianthinopsis melanoides

Pseudorthoceras stonense

Baculopora

Ianthinopsis pinguis

Pseudoseptopora

Baeoneura obscura

Ianthinopsis tumenensis

Pseudosigillaria

Bailliena yukonensis

Ianthodon

Pseudosigillaria monostigma

Baiosoma

Ianthodon schultzei

Pseudospatulina

Baiosoma batilia

Ibergia centrifuga

Pseudostacheoides

Baiosoma cucullata

Ibergirhynchia

Pseudostacheoides loomisi

Baiosoma pala

Iberospondylus

Pseudostaffella

Bairdia

Iberospondylus schultzei

Pseudostaffella (Semistaffella) variabilis

Bairdia (Cryptobairdia) seminalis

Ibukiphyllum

Pseudostaffella antiqua

Bairdia (Urobairdia) angusta

Ibyka

Pseudostaffella cuboides

Bairdia ardmorensis

Ibyka amphikoma

Pseudostaffella needhami

Bairdia beedei

Ichnomylax karatajae

Pseudostaffella oblonga

Bairdia curta

Ichthyerpeton

Pseudostaffella panxianensis

Bairdia girtyi

Ichthyerpeton squamosum

Pseudostaffella paradoxa

Bairdia grahamensis

Ichthyorachis

Pseudostaffella proozawai

Bairdia hoffmanae

Ichthyostega eigili

Pseudostaffella shidaliensis

Bairdia hooverae

Iddingsella

Pseudostaffella sphaeroidea

Bairdia kansasensis

Idiognathodus

Pseudostenopoceras

Bairdia kanwakensis

Idiognathodus biconvexus

Pseudostenopoceras lenticulare

Bairdia nagyvisnyoensis

Idiognathodus binodosus

Pseudostenopoceras rouillieri

Bairdia perincerta

Idiognathodus cancellosus

Pseudostenopoceras solare

Bairdia permagna

Idiognathodus cariniferus

Pseudosyringodendron

Bairdia pompilioides

Idiognathodus cherryvalensis

Pseudosyringodendron pachyderma

Bairdia pseudoglennensis

Idiognathodus chiriformis

Pseudosyringothyris

Bairdia reussiana

Idiognathodus cicatricosus

Pseudosyrinx

Bairdia whortani

Idiognathodus clavatus

Pseudotaxis

Bairdiacypris

Idiognathodus confragus

Pseudotealliocaris

Bairdianella

Idiognathodus corrugatus

Pseudotealliocaris palincsari

Bairdianella elegans

Idiognathodus cuneiformis

Pseudotermes

Bairdiocypris

Idiognathodus erodus

Pseudotermes parvulus

Bairdiolites

Idiognathodus farrelli

Pseudotimania

Bakevellia

Idiognathodus folium

Pseudotriticites

Balachonoblatta

Idiognathodus fusiformis

Pseudotriticites thaiensis

Balachonoblatta pectininervosa

Idiognathodus gemmiformis

Pseudowannerophyllum

Balachonoblatta zheltojarica

Idiognathodus harkeyi

Pseudowaribole

Balakhonia

Idiognathodus jugosus

Pseudozaphrentoides

Balanerpeton

Idiognathodus kansensis

Pseudozaphrentoides ordinatus

Balanerpeton woodi

Idiognathodus lanceolatus

Pseudozygopleura

Balanoconcha

Idiognathodus liratus

Pseudozygopleura (Pseudozygopleura) conica

Balanoconcha australis

Idiognathodus lobatus

Pseudozygopleura (Pseudozygopleura) leveneae

Balantoides

Idiognathodus megistus

Pseudozygopleura (Pseudozygopleura) mutabilis

Balduria

Idiognathodus modulatus

Pseudozygopleura (Pseudozygopleura) nana

Balduria archaica

Idiognathodus multinodosus

Pseudozygopleura (Pseudozygopleura) nigra

Balduriella

Idiognathodus nodostriatus

Pseudozygopleura (Pseudozygopleura) pagoda

Balduriella latissima

Idiognathodus porcatus

Pseudozygopleura (Pseudozygopleura) peoriense

Baldwinonus trux

Idiognathodus rotundus

Pseudozygopleura (Pseudozygopleura) pinquicula

Balikunochonetes

Idiognathodus rugulatus

Pseudozygopleura (Pseudozygopleura) praeacuta

Balikunochonetes liaoi

Idiognathodus ruidus

Pseudozygopleura (Pseudozygopleura) recticostata

Baltisphaeridium

Idiognathodus semipapulatus

Pseudozygopleura (Pseudozygopleura) rothi

Balvia

Idiognathodus siculus

Pseudozygopleura (Pseudozygopleura) teres

Bandoproductus

Idiognathodus simplex

Pseudozygopleura (Pseudozygopleura) werneri

Bandringa

Idiognathodus spathodus

Pseudozygopleura (Pyrgozyga) warthini

Bandringa herdinae

Idiognathodus strigillatus

Pseudozygopleura (Stephanozyga) lisaspira

Bandringa rayi

Idiognathodus sulciferus

Pseudozygopleura (Stephanozyga) nishimurai

Baphetes

Idiognathodus symmetricus

Pseudozygopleura acuminata

Baphetes kirkbyi

Idiognathodus vadosus

Pseudozygopleura angustata

Baphetes orientalis

Idiognathodus walteri

Pseudozygopleura assertonsoris

Baphetes planiceps

Idiognathodus warei

Pseudozygopleura baltea

Barameda

Idiognathodus wintersetensis

Pseudozygopleura cirritus

Barameda decipiens

Idiognathoides

Pseudozygopleura condrai

Barameda mitchelli

Idiomylacris gracilis

Pseudozygopleura contractus

Barinophyton richardsoni

Idioprioniodus

Pseudozygopleura deloi

Barrandeophyllum

Idioprioniodus camurus

Pseudozygopleura eximia

Barrandeophyllum bayanbulagense

Idioprioniodus striatus

Pseudozygopleura funis

Barrealispira

Idioprioniodus typus

Pseudozygopleura girtyi

Barrealispira tupensis

Idmonarachne

Pseudozygopleura gradatus

Barroisella

Idmonarachne brasieri

Pseudozygopleura irrugata

Barroisiblatta

Idoptilus

Pseudozygopleura kellettae

Barroisiblatta guerrei

Idoptilus onisciformis

Pseudozygopleura knighti

Barroisiblatta jourdani

Idoptilus peachii

Pseudozygopleura lanceolatus

Barroisiblatta orieulxi

Ignaroblatta

Pseudozygopleura lefebvrei

Barroisiblatta retroflexa

Ignaroblatta panda

Pseudozygopleura limus

Barthelopteris germarii

Ignaroblatta rectisubcosta

Pseudozygopleura macra

Bartramella

Ignaroblatta sibirica

Pseudozygopleura moorei

Bartramella mediocris

Ignoceras

Pseudozygopleura mucronatus

Bartramella vervillei

Ildraites

Pseudozygopleura multicostata

Barycrinus

Ilfeldia

Pseudozygopleura obtusicacuminis

Barycrinus spurius

Ilfeldia jejunata

Pseudozygopleura palus

Baryschyr

Illusioluidia

Pseudozygopleura pandus

Baryshnyala

Illusioluidia teneryi

Pseudozygopleura perversa

Baryshnyala occulta

Ilyodes divisa

Pseudozygopleura plummeri

Barytichisma

Ilyodes elongata

Pseudozygopleura pluricostata

Baschkirina

Imbrexia

Pseudozygopleura pugonis

Baschkirina buekkensis

Imbricatocoelia

Pseudozygopleura pulchra

Baschkirina convexa

Imitoceras

Pseudozygopleura pupa

Baschkirites

Imitoceras dimidium

Pseudozygopleura rectus

Baschkirites granosus

Imitoceras oxydentale

Pseudozygopleura restis

Baschkirites planus

Imitoceras sinuatum

Pseudozygopleura schucherti

Baschkirites vasilkovskyi

Imitoceras strictum

Pseudozygopleura scitula

Bashkirella

Imoella

Pseudozygopleura scruposus

Bashkortoceras

Imoella obscura

Pseudozygopleura semicostata

Bashkortoceras artum

Imogloba

Pseudozygopleura sinuosior

Bashkortoceras kugarchense

Imogloba gandyensis

Pseudozygopleura smithiana

Bashkortoceras salavati

Imonautilus

Pseudozygopleura subclathrata

Basidechenella

Imonautilus meeki

Pseudozygopleura subulatus

Basidechenella timwhitei

Imparipteris

Pseudozygopleura tenuivirga

Basslerella

Imparipteris heterophylla

Pseudozygopleura variegata

Basslerites

Incisurella

Pseudozygopleura yandellana

Batangophyllum

Incrustospongia

Psilocamara

Batangophyllum sinense

Indivisia

Psilocamara renfroarum

Bathronocrinus

Infernovenator

Psilokirkbyella

Bathronocrinus wolfriverensis

Infernovenator steenae

Psilophyton

Bathysiphon

Inflatia

Psilothorax

Bathytaptus

Inflatia cooperi

Psilothorax longicauda

Bathytaptus falcipennis

Inflatia gracilis

Psychroptilus

Batocrinus

Inflatia pusilla

Psychroptilus burrettae

Batostomella

Inflatia succincta

Psygmophyllum flabellatum

Batrachiderpeton

Iniopera

Ptenodera

Batrachiderpeton lineatum

Iniopera richardsoni

Ptenodera dubius

Batrachiderpeton reticulatum

Iniopteryx

Pteria

Baylea

Iniopteryx rushlaui

Pteridomylacris

Baylea coheni

Iniopteryx tedwhitei

Pteridomylacris paradoxa

Baylea concentrica

Inioxyele

Pteridotheca

Baylea cordulae

Inioxyele whitei

Pterinea

Baylea giffordi

Insolentitheca

Pterinopecten

Baylea inclinata

Irajanarkemina

Pterinopectinella

Baylea knighti

Irajanarkemina rodendorfi

Pterispermostrobus

Baylea kuesi

Irinoceras

Pterispermostrobus bifurcatus

Baylea minuta

Irinoceras arcuatum

Pterochiton

Baylea parva

Irinoceras minutum

Pterochiton carbonarius

Baylea sinuatus

Irmosporites

Pterochiton spatulatus

Baylea spirolirata

Irmosporites circumpolaris

Pteronepionites

Baylea subconstricta

Irregularina

Pteronepionites ambigua

Baylea tabulata

Ischnoneura

Pteronepionites lepus

Baylea trifibra

Ischnoneura brongniarti

Pteronidia

Baylea yvanii

Ischnoneura delicatula

Pteronidia plicatula

Beagiascus

Ischnoneura oustaleti

Pteronites

Beagiascus pulcherrimus

Ischnoptilus

Pteroplax

Becanites

Ischnoptilus elegans

Pteroplax cornuta

Becanites africanus

Isfarispira

Pteroplax cornutus

Becanites inflateralis

Isfarispira perlata

Pterospermella

Bechala

Isoallagecrinus

Pterotocrinus

Bechala sommeri

Isoallagecrinus lasallensis

Ptilomylacris

Bechlya

Isochonetes

Ptilomylacris medialis

Bechlya ericrobinsoni

Isochonetes larinoensis

Ptiloporella

Becquerelia

Isodectes

Ptiloporella irregularis

Becquerelia elegans

Isodectes obtusus

Ptomatis

Becquerelia superba

Isogramma

Ptomatis moreirai

Becquerelia tincta

Isogramma donbassica

Ptomatis proteiforme

Beecheria

Isogramma pachti

Ptychocarpus

Beecheria chouteauensis

Isogramma salteri

Ptychocladia

Beedeina

Isogramma scotica

Ptychomaletoechia

Beedeina aculeata

Isogramma vidriense

Ptychomphalina

Beedeina buglensis

Isohomoceras

Ptychomphalina magna

Beedeina communis

Isohomoceras inostranzewi

Ptychomphalus

Beedeina consobrina

Isohomoceras modestum

Ptychomphalus conimorphus

Beedeina distenta

Isohomoceras praematurum

Ptychomphalus striatus

Beedeina diversa

Isojulus

Ptychopteria

Beedeina exilis

Isojulus constans

Ptychopteria pusilla

Beedeina ferusa

Isotrypa

Ptychosphaera

Beedeina inflata

Itimaites

Ptychospirina

Beedeina leei

Itimaites parabolicus

Ptylopora

Beedeina multicava

Itimaspira

Ptylopora konincki

Beedeina nytvica

Itimaspira klugi

Ptyocephalus

Beedeina paradistenta

Ivanovia tenuissima

Ptyonius

Beedeina samarica

Ivoechiton

Ptyonius marshii

Beedeina schellwieni

Izykhia

Ptyonius olisthmonaias

Beedeina siviniensis

Izykhia tridentis

Pudoproetus

Beedeina subferusa

Jacquesoudardia

Pudoproetus chappelensis

Beedeina ulitinensis

Jacquesoudardia magnifica

Puertollanopus

Bekena

Jaekelocarpus

Puertollanopus omicrodactylus

Belantsea

Jaekelocarpus oklahomensis

Pugilis

Belantsea montana

Jakutoproductus

Pugnax

Belantsea occidentalis

Jakutoproductus sabattiniae

Pugnax latesinuata

Belemnocrinus

Janassa

Pugnax utah

Belemnospongia

Janassa bituminosa

Pugnoides

Belemnospongia parmula

Janassa clarki

Pugnoides mazhalaensis

Beleutoceras

Janassa clavatus

Pugnoides quinqueplecis

Beleutoceras carinatum

Janassa imbricatus

Pulchratia

Belgibole

Janassa linguaeformis

Pullastra

Belinurus

Janassa maxima

Pullastra striatocostata

Bellazona

Janassa unguicula

Pulsia

Bellazona bella

Janeia

Punctatisporites

Bellazona polita

Janischewskina

Punctatisporites glaber

Bellerophon

Jdaidites

Punctatisporites irrasus

Bellerophon (Bellerophon) needlensis

Jdaidites cultellus

Punctatosporites

Bellerophon (Bellerophon) panneus

Jedria

Punctospirifer

Bellerophon (Bellerophon) planodorsatum

Jedria meeki

Punctospirifer ambiguus

Bellerophon (Bellerophon) stevensianus

Jedria ventrica

Punctospirifer coronae

Bellerophon (Bellerophon) vinculatus

Jenisseiphyton

Punctospirifer gigas

Bellerophon (Bellerophon) welshi

Jenisseiphyton lebedevii

Punctospirifer kentuckensis

Bellerophon anthracophilus

Jerania

Punctospirifer transversus

Bellerophon barquensis

Jerania jeranensis

Punctothyris

Bellerophon bicarenus

Jerania persimilis

Purdonella

Bellerophon blairi

Jerania pusillens

Purdonella nikitini

Bellerophon bristolensis

Jerania sicilicula

Purkynia

Bellerophon chesterensis

Jerania subvexa

Purkynia lata

Bellerophon corriei

Jigulites corpulentus

Pustula

Bellerophon demaneti

Jigulites formosus

Pustula pertenuis

Bellerophon gibsoni

Jigulites intermedius

Pustulatisporites

Bellerophon graphicus

Jilinmartinia

Pustulatisporites papillosus

Bellerophon hiulcus

Jilinmartinia sokolovi

Putrella

Bellerophon incomptus

Jimpohlia

Pycnopora

Bellerophon insculptus

Jimpohlia erinacea

Pycnotarbus

Bellerophon interstrialis

Joanellia

Pycnotarbus verrucosus

Bellerophon jeffersonensis

Joanellia lundi

Pyebrodia

Bellerophon kyndalynensis

Johnsonathyris

Pyebrodia martinsnetoi

Bellerophon latisulcatus

Jonesina

Pygmaeoceras solidum

Bellerophon scissile

Jonesina howardensis

Pylentonema

Bellerophon sedaliensis

Jongmansia tuberculata

Pylentonema antiqua

Bellerophon singularis

Jordanites

Pyramiblastus

Bellerophon spergensis

Jugobreyeria

Pyramiblastus fusiformis

Bellerophon sulcatulus

Jugobreyeria sippelorum

Pyramus

Bellerophon swainsensis

Julieticrinus

Pyramus primigenius

Bellerophon tenuifascia

Julieticrinus romeo

Pyritaranea

Bellerophon tenuilineata

Junggaroblastus

Pyritaranea tubifera

Bellerophon ulrichi

Juresania

Pyrula microtricha

Bellerophon wewokanus

Juresania grandispinosa

Qilianiblatta

Bellerophon whittleseyi

Juresania ovalis

Qilianiblatta namurensis

Bellerophon wrighti

Kabakovitchiella

Quadratia egregia

Bellinurus

Kabyaipecten

Quadratia hirsutiformis

Bellinurus baldwini

Kahlerella kirgisica

Quadratonucula

Bellinurus bellulus

Kakwiphyllum

Quadrochonetes

Bellinurus koenigianus

Kallenbergia

Quadropedia

Bellinurus lacoei

Kallenbergia handlirschi

Quadropedia prima

Bellinurus longicaudatus

Kallimorphocrinus

Quasiavonia

Bellinurus morgani

Kalops

Quasicravenoceras

Bellinurus reginae

Kalops diophrys

Quasicravenoceras consuetum

Bellinurus trechmanni

Kalops monophrys

Quasicravenoceras costatum

Bellinurus truemani

Kaloxylon

Quasicravenoceras infans

Bellocaris

Kalymma

Quasicravenoceras librovitchi

Bembexia

Kalymma grandis

Quasiendothyra

Bembexia inumbilicata

Kamaena

Quasifusulina

Bembexia minima

Kamaena delicata

Quasifusulina akbeitica

Bensbergia elongata

Kamaenella

Quasifusulina eleganta

Bensonites

Kankakeea

Quasifusulina kodzhagulica

Bensonites fusiformis

Kankakeea grundyi

Quasifusulina longissima

Beresella

Kanmeraia

Quasifusulina ptchanica

Berestovia

Kanmeraia kottlowskii

Quasifusulinoides

Bergeria

Kansanella

Quasifusulinoides fallax

Bernicia

Kansuella

Quasifusulinoides fusiformis

Bernicia praecursor

Karavankina

Quasifusulinoides intermedius

Bertrandiblatta

Karavankina dobsinensis

Quasifusulinoides kljasmicus

Bertrandiblatta inexpectata

Karavankina fasciata

Quasifusulinoides parafusiformis

Bethacanthus

Karavankina praepermica

Quasifusulinoides quasifusulinoides

Bethacanthus insolitus

Kardailites

Quasillites

Bevocastria

Kardailites primus

Quinnites

Beyrichia

Kardailites pulcher

Quinnites henbesti

Beyrichiella

Karinopteris

Quinnites textum

Beyrichoceras

Kaskia

Rachiopteris

Beyrichoceras crenistriatoide

Kassinella

Radstockia

Beyrichoceras elabiodiense

Katerinka

Rainerichthys

Beyrichoceras hornerae

Katerinka hilaris

Rainerichthys zangerli

Beyrichoceras jadarense

Katoblastus

Raistrickia

Beyrichoceras trevallynense

Katoblastus konincki

Raistrickia aculeata

Beyrichoceratoides

Katoblastus puzos

Raistrickia densa

Beyrichoceratoides lunatus

Katoptychia hallii

Rakovnicia

Beyrichoceratoides redesdalensis

Kawanamia

Rakovnicia antiqua

Beyrichoceratoides truncatus

Kawanamia onimarensis

Ramesses

Bibucia

Kawichthys

Ramesses magnus

Bicuerda

Kawichthys moodiei

Ramiphyllum

Bicuerda procolumnare

Kazachstanoblastus

Ramiphyllum firmatum

Bifossularia

Kazakhoceras

Ramipora

Bigenerina

Kazakhoceras bylundi

Ramipora hochstetteri

Bilignea

Kazakhoceras hawkinsi

Ramiporalia

Bilignea solida

Kazakhoceras scaliger

Ramiporidra

Bilinguites

Kazakhstania

Ramiporidra minuta

Bilinguites canadensis

Kazakhstania colubrella

Ramosites

Bilinguites degeneratus

Kazakhstania evoluta

Ramosites brevisellatus

Bilinguites eliasi

Kazakhstania mangeri

Ramosites corpulentus

Bilinguites eximius

Kazakhstania nitida

Ramosites exrectus

Bilinguites heibergensis

Keeneia

Ramosites magnus

Bilinguites metabilinguis

Kegelidium

Ramosites praesagus

Bilinguites politus

Kegelidium lamegoi

Ramosites ramosus

Bilinguites superbilinguis

Kelleropteron

Ramosites rectus

Binipecten

Kelleropteron kaelberbergense

Ramosites schartymensis

Binipecten yuani

Kellettella

Ramosites subtilis

Biorbis

Kellettella navicula

Ramulocrinus

Bipedes aspodon

Kemperala

Raphconilia

Birdsalella

Kemperala hagenensis

Rasnitsynala

Bisatoceras

Kenomagnathus

Rasnitsynala sigambrorum

Bisatoceras greenei

Kenomagnathus scotti

Rasstriga

Bisatoceras hoeni

Keokukia

Rasstriga americana

Bisatoceras kotti

Keraterpeton

Rauserites

Bisatoceras primum

Keraterpeton galvani

Rauserites baghbanii

Bisatoceras renni

Keraterpeton gigas

Rauserites dictyophorus

Bisatoceras secundum

Keraterpeton longtoni

Rauserites fusoideus

Biseriella

Keyserlingophyllum

Rauserites infrequentis

Biseriella parva

Kiangsiella

Rauserites ishimbaji

Bispathodus

Kiangsiella halliana

Rauserites karlensis

Bispinacratia

Kimina

Rauserites noinskyi

Bispinacratia posterospinosa

Kimina australis

Rauserites sinuosus

Bistrialites

Kimina globosa

Rauserites stuckenbergi

Bistrialites bicostatus

Kimina minor

Rauserites subobsoletus

Bistrialites bimembris

Kindleina

Rauserites variabilis

Bitaunioceras

Kindlella

Rawdonia

Bitaunioceras buckhornense

Kindlella minuta

Rayonnoceras

Biwaella poletaevi

Kinkaidia cancellata

Rayonnoceras eccentricum

Biwaella zhikalyaki

Kinkaidia triserrata

Rayonnoceras fayettevillense

Bizarrea

Kinkaidia uniserrata

Rayonnoceras irregulare

Bizarrea obscura

Kinklidoblatta

Rayonnoceras nobile

Blairocrinus

Kinklidoblatta corsini

Rayonnoceras protentum

Blanzelytron

Kinklidoblatta lesquereuxi

Rayonnoceras solidiforme

Blanzelytron vetteri

Kinklidoblatta morini

Rayonnoceras vaughanianum

Blattina wemmetsweileriensis

Kinklidoblatta youhei

Rectangulina

Blattinopsis

Kinklidoblatta zavjalovensis

Rectifenestella

Blattinopsis (Blattinopsis) romani

Kinklidoptera

Rectifenestella submicroporata

Blattinopsis americana

Kinklidoptera lubnensis

Rectifenestella tenax

Blattinopsis anthracina

Kinklidoptera vicina

Rectineura

Blattinopsis confusa

Kionoceras

Rectineura lineata

Blattinopsis fimbriata

Kionophyllum

Rectobairdia

Blattinopsis goldenbergi

Kirchnerala

Rectonaria

Blattinopsis huysseni

Kirchnerala treintamil

Recula

Blattinopsis laqueata

Kirkbya

Recula parva

Blattinopsis latipennis

Kirkbya bendensis

Reediella

Blattinopsis major

Kirkbya clarocarinata

Reedoconcha

Blattinopsis ornata

Kirkbya firma

Reedoconcha permixta

Blattinopsis ovalis

Kirkbya pergrandis

Reesodus

Blattinopsis reticulata

Kirkbya permiana

Reesodus wirksworthensis

Blattinopsis taschenbergi

Kirkbya punctata

Regispongia

Blattocoleus

Kirkbya reflexa

Regispongia contorta

Blattocoleus tillyardi

Kirkbya valida

Reimanniopsis

Blattoidea anceps

Kirkbyella

Reimanniopsis indianensis

Blattoidea carri

Kirkella elliptica

Reitlingerina

Blattoidea juvenis

Kirkella indentata

Reitlingerina lepida

Blattoidea lobata

Kirkella typicalis

Reitlingerina preobrazhenskyi

Blattoidea melanderi

Kirktonecta

Remia pinnatifida

Blattoidea schucherti

Kirktonecta milnerae

Remigiomontanus

Blattoidea schuchertiana

Kitakamithyris

Remigiomontanus robustus

Blattoidea sellardsi

Kitakamithyris booralensis

Renalcis

Blattoidea sellardsiana

Kizilia

Renaultia chaerophylloides

Blattoprosbole

Klebsiella

Reophax

Blattoprosbole tomiensis

Klebsiella extincta

Reteporella

Blothrocrinus

Kliveria

Reteporidra

Bobbodus

Kliveria incerta

Retichonetes

Bobbodus schaefferi

Kloedenella

Retichonetes (Sinochonetes) lepidus

Boesites

Kloedenellitina

Retichonetes gibberulus

Boesites (Eoboesites) asianus

Klubonibelia

Reticularia

Boesites (Eoboesites) scotti

Knightella

Reticularia cooperensis

Boesites eotexanus

Knightella gundyensis

Reticulariina

Boesites girtyi

Knightella irregularis

Reticulariina spinosa

Boesites primoris

Knightella shumardiana

Reticulatia

Boesites texanus

Knightina

Reticulatia americana

Bogdanoceras

Knightina ampla

Reticulatia huecoensis

Bogdanoceras bifurcum

Knightina harltoni

Reticulatia tiawahensis

Bogoslovskya

Knightinella

Reticulatisporites

Bohemiatupus

Knightinella humerosa

Reticuloceras

Bohemiatupus elegans

Knightites (Retispira) striata

Reticuloceras devium

Bohemiclavulus

Knightites multicornutus

Reticuloceras excultum

Bohemiclavulus mirabilis

Knightoceras

Reticuloceras instatum

Bohlenatia

Knightoceras lena

Reticuloceras orientale

Boii

Knightoceras oxylobatum

Reticuloceras reticulatum

Boii crassidens

Knightoceras patulum

Reticuloceras surenense

Bojophlebia

Knightoceras subcariniferum

Reticuloceras tiro

Bojophlebia prokopi

Knorria

Reticuloceras wainwright

Bojoptera

Knorria imbricata

Reticuloceras wainwrighti

Bojoptera colorata

Knoxiella

Reticulopteris muensteri

Bollandia

Knoxina

Reticycloceras

Bollandia persephone

Knoxisporites

Reticycloceras croneisi

Bollandites

Kochiproductus

Reticycloceras girtyi

Bollandoceras

Kochiproductus carboniferous

Reticycloceras peytonense

Bollandoceras occidentale

Kochiproductus longlinensis

Reticycloceras sequoyahense

Bollandocrinus

Kochiproductus occidentalis

Retimarginifera

Boloria

Kochiproductus peruvianus

Retispira

Boltonia robusta

Kochiproductus porrectus

Retispira albapinensis

Boltoniella

Kochiproductus riojanus

Retispira bellireticulata

Boltoniella uniformis

Kochopteron

Retispira bilabiatus

Boltonites

Kochopteron hoffmannorum

Retispira boltoni

Boltonites radstockensis

Koenigoria

Retispira chenmazijingensis

Boltonoblatta

Koenigoria paucicostulata

Retispira cincta

Boltonoblatta pringlei

Kohlwaldia

Retispira concinna

Boltonocosta

Kohlwaldia kuehni

Retispira culleni

Boltonocosta splendens

Koilops

Retispira decussatus

Booralia

Koilops herma

Retispira deflectus

Booralia ovata

Kokenospira

Retispira elegans

Borestus

Kollarcephalus

Retispira espinasa

Borestus costatus

Komia

Retispira exilis

Borestus magdalenensis

Koninckophyllum

Retispira fascireticulatus

Borestus pagoda

Koninckophyllum ingavatae

Retispira hibernicus

Borestus procerus

Koninckophyllum interruptum

Retispira keyniana

Borestus similis

Koninckophyllum magnificum

Retispira makatikhae

Borestus texanus

Koninckophyllum variabile

Retispira marcouianus

Borestus wrighti

Koninckopora

Retispira meekiana

Bornatarbus

Koninckopora inflata

Retispira monronensis

Bornatarbus mayasii

Koskinobigenerina

Retispira mowensis

Bothriolepis virginiensis

Koskinotextularia

Retispira multilirata

Bothrodendron

Kozlowskia

Retispira multiscalpta

Bothrodendron punctatum

Kozlowskia capaci

Retispira ningxiaensis

Bothrophyllum

Kozlowskinia

Retispira nodocostata

Bothrophyllum proteum

Kozlowskinia phyllis

Retispira nodulifera

Botrophyllum

Kraeuselisporites

Retispira nolani

Botrychiopsis

Kralupia

Retispira ordinata

Botrychiopsis weissiana

Kralupia carbonaria

Retispira ornatus

Botryococcus

Krausella

Retispira perelegans

Botryopteris

Kreischeria

Retispira qingshuihensis

Botryopteris forensis

Kreischeria wiedei

Retispira reticulata

Bouhamedites

Krotovia

Retispira subtilistriata

Bouhamedites enigmaticus

Krotovia elegans

Retispira tenuilineata

Bouhamedites insalahensis

Krotovia latisulcata

Retispira textiliformis

Bouleites

Krotovia longlinensis

Retispira textilis

Bouleites latipennis

Krotovia pustulata

Retispira triangularis

Bourbonnella

Kueichouphyllum

Retispira undata

Bourbonnella jocelynae

Kueichouphyllum sinense

Retispira waverliensis

Bowmanites

Kueichouphyllum yabei

Retispira yochelsoni

Brabeocrinus

Kullmannissites

Retispora

Brabeocrinus christinae

Kullmannissites pachyspineus

Retites

Brachycycloceras

Kunguroblattina schmitzi

Retites extremus

Brachycycloceras curtum

Kushanites

Retites obscurus

Brachycycloceras normale

Kushanites kirgizorum

Retites ortivus

Brachycycloceras washingtonense

Kusinia

Retites semiretia

Brachydectes newberryi

Kusinia falcifera

Retroplexus

Brachygerarus

Kustaria

Retshitsella

Brachygerarus anae

Kustaria carbonaria

Retshitsella egorovi

Brachymetopus

Kustia

Retusotriletes

Brachymetopus (Acutimetopus) jesenicianus

Kustia bohemica

Retusotriletes anfractus

Brachymetopus pseudometopina

Kutorginella

Retzia

Brachymetopus strzeleckii

Kutorginella lasallensis

Reversocypris

Brachymylacris

Kutorginella mosquensis

Reviya

Brachymylacris bassleri

Kyklopora

Rhabdocrinus

Brachymylacris elongata

Kyndalynia

Rhabdomeson

Brachymylacris martini

Kyndalynia inflata

Rhabdomeson rhombiferum

Brachymylacris nodulata

Kyoconocardium

Rhabdoptilus

Brachymylacris rotundata

Kyoconocardium meekanum

Rhabdoptilus edwardsi

Brachypyge

Kyrinion

Rhabdotocochlis

Brachypyge carbonis

Kyrinion martilli

Rhabdotocochlis rugata

Brachythyrina

Labriproductus

Rhabdotocochlis turgida

Brachythyrina abnormalis

Lacertasterias

Rhabdoxylon

Brachythyrina lata

Lacertasterias elegans

Rhabdoxylon dichotomum

Brachythyrina rectangula

Lacoea

Rhacophyton

Brachythyrina strangwaysi

Lacoea seriata

Rhacopteris

Brachythyris

Laevidentalium

Rhadinichthys

Brachythyris chouteauensis

Laevigatosporites

Rhadinichthys angustulus

Brachythyris ellipsoideus

Laevigatosporites vulgaris

Rhadinichthys brevis

Brachythyris solida

Lafonius

Rhadinichthys carinatus

Brachythyris ufensis

Lafonius lehmani

Rhadinichthys elegantulus

Bradyina

Lagarodus

Rhadinichthys macconochii

Bradyina cribrostomata

Lagarodus angustus

Rhadinichthys ornatissimus

Bradyphyllum

Lagarodus specularis

Rhaphidiopsis

Bradyphyllum bellicostatum

Lagenammina

Rhaphidiopsis diversipenna

Bradyphyllum coagmentum

Lagenospermum

Rhaphischisma

Brahmacrinus

Lagenostoma

Rhaphischisma planorbiformis

Branchierpeton

Lagenostoma ovoides

Rhenogriffides

Branchierpeton saalense

Lambdarina

Rhetinangium

Branchierpeton saberi

Lameereites

Rhetinangium arberi

Branchiosaurus

Lameereites curvipennis

Rhineoderma

Branchiosaurus darrahi

Lamellosathyris

Rhineoderma dinglensis

Branchiosaurus salamandroides

Lampadosocrinus

Rhineoderma gemmuliferum

Branchipusites

Lamproptilia

Rhineoderma hotwellsensis

Branchipusites anthracinus

Lamproptilia grandeuryi

Rhineoderma nodulostriata

Branneroceras

Lamproptilia tenuitegminata

Rhineoderma nystii

Branneroceras branneri

Lamprosterigma

Rhineoderma piasaensis

Branneroceras hillsi

Lanecrinus

Rhineoderma radula

Branneroceras nicholasi

Langepis

Rhineoderma wortheni

Bransonella

Langepis campbelli

Rhipidioptera

Bransonella lingulata

Lanopora

Rhipidioptera elegans

Bransonella nebraskensis

Lanopora eximia

Rhipidomella

Bransonella tridentata

Lapparentiella

Rhipidomella burlingtonensis

Brasilioproductus

Lapparentiella superba

Rhipidomella carbonaria

Breileenia

Larryia

Rhipidomella diminutiva

Breileenia radiata

Larryia osterbergi

Rhipidomella dubia

Breimeriblastus

Lasanocrinus

Rhipidomella fortimuscula

Breimeriblastus gracilis

Lasanocrinus daileyi

Rhipidomella lyelliana

Breimeriblastus pyramidalis

Lasanocrinus minutus

Rhipidomella michelini

Brevibelus

Lasanocrinus multinodulus

Rhipidomella missouriensis

Brevibelus breviformis

Lasanocrinus nodatus

Rhipidomella parva

Brevikites

Lasanocrinus strigosus

Rhipidomella pecosi

Brevikites densus

Laschmaspira

Rhipidomella penniana

Brevikites inops

Laschmaspira rara

Rhipidomella perminuta

Breviphillipsia

Laspeyresiella

Rhipidomella tenuicostata

Breyeria

Laspeyresiella wettinensis

Rhipidomella thiemei

Breyeria barborae

Latentifistula

Rhizodopsis

Breyeria bistrata

Latiglobusia

Rhizodopsis robusta

Breyeria borinensis

Latiproductus

Rhizodopsis sauroides

Breyeria boulei

Latzelia

Rhizodus

Breyeria brauckmanni

Latzelia primordialis

Rhizodus gracilis

Breyeria delruei

Laudonocrinus

Rhizodus hibberti

Breyeria janseni

Lawrenciella

Rhodea

Breyeria lachlani

Lawrenciella schaefferi

Rhodea subpetiolata

Breyeria limburgica

Laxifenestella

Rhodea trichomanoides

Breyeria rappi

Laxifenestella stschugorensis

Rhodocrinites

Breyeria sharovi

Lazarevia

Rhombocladia

Breyeria solida

Lazarevia stepanowensis

Rhombopora

Breyeria triramosa

Leaia

Rhombopora bifurcata

Breyeria vrankeni

Leaia baentschiana

Rhombopora corticata

Breyeriodes

Leaia buntschiana

Rhombopora cylindrica

Breyeriodes kliveri

Leaia herriana

Rhombopora hexagona

Bridgerocrinus discus

Lebachia

Rhombopora johnsvalleyensis

Brittsia

Lebedictya

Rhombopora lepidodendroides

Brittsia problematica

Lebetocrinus

Rhombopora nitidula

Brochocarina

Lecocrinus

Rhombotrypella

Brodia

Lecythiocrinus

Rhombotrypella dvinensis

Brodia jogginsensis

Lecythiocrinus asymmetricus

Rhombotrypella rectangulata

Brodia priscotincta

Leda elliptica

Rhopocrinus

Brodioptera

Leiocephalikon

Rhymmoceras

Brodioptera cumberlandensis

Leiocephalikon problematicum

Rhymmoceras gracilentum

Brodioptera pintoi

Leiochonetes

Rhymmoceras perlatum

Brodioptera sinensis

Leioclema

Rhymmoceras spatiosum

Brodioptera stricklani

Leioclema indentata

Rhymmoceras vermiculatum

Brongniartula

Leioproductus

Rhynchogonium

Brongniartula rastrata

Leiopteria

Rhynchonella

Brouffia

Leiorhynchoidea

Rhynchopora

Brouffia orientalis

Leiorhynchus

Rhynchopora arctica

Bruayaphis

Leiorhynchus rockymontanum

Rhynchopora dossena

Bruayaphis oudardi

Leiosphaeridia

Rhynchopora geinitziana

Bruaylogus

Leiothycridina

Rhynchopora illinoisensis

Bruaylogus magnificus

Leiothycridina expansa

Rhynchopora magnicosta

Bruktererpeton

Leiotriletes

Rhynchopora sansabensis

Bruktererpeton fiebigi

Leiotriletes gracilis

Rhynchotetra

Brunsia

Leiotriletes petilus

Rhynchotrema

Bryantodus

Leiotriletes politus

Rhynchotrema fringilla

Bryantodus cameratus

Leipsanon

Rhynchotreta

Bryantodus delicatus

Leipsanon reticulatum

Rhynoleichus

Bryantodus rugosus

Lekocrinus

Rhytidolepis

Bryantodus strigillatus

Leonardophyllum

Rhytiophora

Bucania

Leperditia

Rhytiophora blairi

Bucaniopsis calamitoides

Lepetopsis

Rhytiophora calhounensis

Bucanopsis

Lepetopsis chesterensis

Richardsonites

Bucanopsis hibernicus

Lepetopsis franae

Richardsonites girtyanus

Buckhornia

Lepetopsis levettei

Richardsonites richardsonianus

Buckhornia carteri

Lepetopsis peregrina

Richteria

Bukkanodus

Lepetopsis phillipsi

Richterina

Bukkanodus jesseni

Lepetopsis retrorsa

Richterina (Richterina) striatula

Bulahdelia

Lepidasterella

Richthofenia elegans

Bulimorpha

Lepidasterella montanensis

Ricnodon

Bulimorpha bulimiformis

Lepidocarpon

Ricnodon copei

Bulimorpha elegans

Lepidocarpopsis

Ricnodon dispersus

Bulimorpha elongata

Lepidocarpopsis lanceolatus

Ricnodon trachylepis

Bulimorpha minor

Lepidodendron

Rigattoptera

Bulimorpha whitfieldi

Lepidodendron aculeatum

Rigattoptera ornellasae

Buregia

Lepidodendron obovatum

Rigbyocarpus

Buteoxylon

Lepidodendropsis

Rigbyocarpus ebracteatus

Buteoxylon gordonianum

Lepidophloios

Rineceras

Buthotrephis

Lepidophloios laricinus

Rineceras canaliculatum

Buxtonia

Lepidophylloides

Rineceras carinatiforme

Buxtonia longispina

Lepidophylloides intermedium

Rineceras carinatum

Buxtonia markamensis

Lepidophyllum

Ripidiorhynchus

Buxtonia mosquensis

Lepidopleurus

Rishona

Buxtonia scabriculoides

Lepidostrobophyllum

Rivularia

Buxtonioides

Lepidostrobus

Rochdalia

Buxtonioides itaitubensis

Lepidostrobus majus

Rochdalia parkeri

Bythiacanthus

Lepidostrobus ornatus

Roemerella

Bythocypris

Leptacanthus

Roemeripora

Bythocypris osagensis

Leptacanthus jenkinsoni

Roemeripora wimani

Bythocypris tomlinsoni

Leptacanthus junceus

Roemerolites

Bythocyproidea

Leptaena

Romerodus

Bythotrephis

Leptaena convexa

Romerodus orodontus

Cactocrinus

Leptaena cooperi

Roomeria

Cacurgellus

Leptagonia

Roomeria carbonaria

Cacurgellus barryi

Leptagonia analoga

Ropalonaria

Cacurgulopsis

Leptalosia

Roquesselsia

Cacurgulopsis sanguinettiae

Leptalosia ovalis

Rossirhynchus

Cacurgus

Leptalosia scintilla

Rota

Cacurgus avionensis

Lepterpeton

Rota martini

Cacurgus spilopterus

Lepterpeton dobbsii

Rotaia

Caenanoplia

Leptoblattina

Rotasaccus

Caenoblatta

Leptoblattina exilis

Rothpletzia

Caenoblatta angaridensis

Leptocaryorhynchus

Rotiphyllum

Caenolyroceras

Leptoconocardium

Rotiphyllum abnormae

Caenolyroceras subgloboides

Leptoconocardium catastomum

Rotiphyllum asymmetricum

Caerorhachis

Leptodesma

Rotiphyllum latithecatum

Caerorhachis bairdi

Leptodesma (Leptodesma) matheri

Rotiphyllum voznesenkae

Calamites

Leptodesma (Leptodesma) occidentale

Rotoides

Calamites (Calamitina) goepperti

Leptodesma (Leptodesma) potens

Rotoides imperforata

Calamites (Stylocalamites) suckowii

Leptodesma (Leptodesma) rhysema

Rotoides tretomesota

Calamites cannaeformis

Leptodesma welleri

Rotopericyclus

Calamites radiatus

Leptophloeum

Rotopericyclus (Hammatocyclus) brazerensis

Calamites undulatus

Leptophloeum australe

Rotopericyclus (Rotopericyclus) pinyonensis

Calamocarpon

Leptophloeum rhombicum

Rotopericyclus kaufmanni

Calamocarpon insignis

Leptophractus

Rotopericyclus lubesederi

Calamopitys

Leptophractus obsoletus

Rotopericyclus rathi

Calamopitys saturni

Leptopora

Rotopericyclus wendti

Calamopteris

Leptoptygma

Rotundopteris

Calamospora

Leptoptygma carrizoensis

Rotundopteris multimediali

Calamospora multiplicata

Leptoptygma fountainensis

Roundya

Calathiops

Leptoptygma golconda

Roundyella

Calathium

Leptoptygma newtonensis

Roundyella bellatula

Calathospermum

Leptoptygma oligospira

Roundyella simplex

Calathospermum scoticum

Leptoptygma simplex

Rowleyella

Calcifolium

Leptoptygma subtilistriatum

Royalella

Calcifolium okense

Leptoptygma virgatum

Royalella quadrolirata

Calcisphaera

Leptotarbus

Royalella swallowiana

Calcisphaera laevis

Leptotarbus torpedo

Ruedemannia

Calcitornella

Leptotriticites americanus

Ruedemannia bembexiformis

Calcivertella

Leptotriticites fivensis

Rugauris

Calclamnella

Leptotriticites glenensis

Rugicostella

Calclamnella ramosa

Leptozyga costata

Rugivestis

Calclyra

Leptozyga minuta

Rugoclostus

Calclyra eiseliana

Leptozyga venustus

Rugosochonetes

Caldenocrinus

Lescuropteris

Rugosochonetes burlingtonensis

Caliendrum

Lescuropteris moorii

Rugosochonetes californicus

Caliendrum vittatum

Lethiscus

Rugosochonetes kansuensis

Caligella

Lethiscus stocki

Rugosochusenella shagoniensis

Calliasterella

Levicaulis

Rusophycus biloba

Calliasterella americana

Levicaulis arranensis

Rusophycus eutendorfensis

Callicylix

Levipustula

Rusophycus jenningsi

Calligenethlon

Levipustula levis

Ruthiphiala

Calligenethlon watsoni

Levitusia

Ruthiromia

Calliprotonia

Levitusia humerosa

Ruthiromia elcobriensis

Callipteridium

Levizygopleura

Rylstonia

Callipteridium sullivanti

Levizygopleura gracilis

Saarlandia

Callipteris

Levizygopleura inornata

Saarlandia flexisubcostata

Callispira

Levizygopleura trochus

Saarodictyum

Callispira bellula

Levizygopleura williamsi

Saarodictyum abnormis

Callispira okaensis

Liardiphyllum

Saaromioptera

Callispira quinquecostata

Librovitschiceras

Saaromioptera jordani

Callispira tricostata

Librovitschiceras atuberculatum

Saaropteris guthoerli

Callispirina

Libumella

Sabella

Callispirina ornata

Licharewia

Sabitaptus

Callistadia

Ligonodina

Sabitaptus lagagei

Callistophyton

Lilingostrobus

Saccammina

Callitomaria

Lilingostrobus chaloneri

Saccamminopsis

Callitomaria tepuelensis

Limatulina

Saccoglossus

Callixylon trifilievi

Limbella costellata

Saccoglossus testa

Callocladia

Limbifera

Saccosompsis

Calloconularia

Limburgina antiqua

Saffordotaxis

Calloconularia minima

Limipecten

Sagenodus

Callograptus

Limipecten araneosus

Sagenodus copeanus

Calloporina

Limipecten burnettensis

Sagenodus cristatus

Calmiussiphyllum

Limipecten flexiauricularis

Sagenodus inaequalis

Caloneura dawsoni

Limipecten grandicostatus

Sagittoceras hathawayanum

Caloneura dawsonii

Limipecten greerensis

Saharaphrentis

Caloneurella

Limipecten lamellus

Saharaphrentis tirechouminoidense

Caloneurella carbonaria

Limipecten morsei

Saharonetes

Calvustrigis

Limipecten multistriatus

Saharopteria

Calycocrinus

Limipecten otterensis

Saharopteria sinaitica

Calycocrinus furnishi

Limipecten pincombei

Saivodus

Calycocrinus symmetricus

Limipecten texanus

Saivodus striatus

Calygirtyoceras

Limnerpeton

Saleelasma

Calygirtyoceras arcticum

Limnerpeton modestum

Salpingostoma dasu

Calygirtyoceras confusionense

Limnerpeton obtusatum

Salterospira

Calygirtyoceras darkaouaense

Limnogyrinus

Salterospira chesterensis

Calygirtyoceras zrigatense

Limnogyrinus elegans

Salterospira okawensis

Calyptactis

Limnopus glenshawensis

Salterospira plectata

Calyptactis confragosus

Limnoscelis

Salterospira tabulata

Camarium

Limnoscelis dynatis

Saltospirifer

Camarophorella

Limnoscelis paludis

Saltospirifer guevarii

Camarophorella dorsata

Limnostygis

Samaropsis

Camarophorella lenticularis

Limnostygis relictus

Sampsonocrinus

Camarotoechia

Limoptera

Sandalodus

Camerisma

Limopteria

Sandalodus minor

Camerisma girtyi

Limopteria subalata

Sandalodus morrisii

Camerisma prava

Lindstroemella

Sandia

Campbellospira

Lindstroemella patula

Sandiella

Campbellospira conica

Lindstroemia

Sandiella readi

Campophyllum

Lineagruan

Sandtneria

Campteroneura reticulata

Lineagruan judithi

Sandtneria gemmata

Camptochiton

Lineagruan snowyi

Sanfordiacaulis densifolia

Camptocrinus

Linguaphillipsia

Sanguinolites

Camptodiapha

Linguaserra

Sanguinolites bisectus

Camptodiapha atkinsoni

Lingula

Sanguinolites hekitoensis

Camptosperma

Lingula carbonaria

Sanguinolites naiadiformis

Camptosperma berniciense

Lingula ovata

Sanguinolites obliquus

Campylocephalus

Lingula spatulata

Sanguinolites peruvianus

Campylocephalus salmi

Lingula squamiformis

Sanguinolites simulans

Campyloprion

Lingulodiscina

Sanguinolites unioniformis

Campyloprion annectans

Linipalus

Sanguinolites woolnoughi

Campyloprion ivanovi

Linipalus magnispinus

Sanjuania

Campyloptera

Linocrinus

Sansabella

Campyloptera eatoni

Linoproductus

Sansabella (Coelonella)

Canadiphyllum

Linoproductus caima

Sansabella fayettevillensis

Cancelloceras

Linoproductus cora

Sansabelloides

Cancelloceras asianum

Linoproductus delawarii

Santanghuia

Cancelloceras bisati

Linoproductus derbyi

Santanghuia santanghuensis

Cancelloceras contractum

Linoproductus distortus

Sargentina

Cancelloceras dilatatum

Linoproductus echinatus

Sarocrinus

Cancelloceras elegans

Linoproductus lineatus

Sartenaerus

Cancelloceras extenuatum

Linoproductus mammatus

Sasakiela

Cancelloceras fragosum

Linoproductus meniscus

Sasakiela ryckholtiana

Cancelloceras huntsvillense

Linoproductus planata

Sauravus

Cancelloceras parasianum

Linoproductus planiventralis

Sauravus costei

Cancelloceras rurae

Linoproductus pollex

Sauripterus taylori

Cancrinella

Linoproductus prattenianus

Sauropleura

Cancrinella alazeica

Linoprotonia

Sauropleura pectinata

Cancrinella boonensis

Linopteris

Sauropleura scalaris

Cancrinella koninckiana

Liobole

Savagella

Cancrinella nunduva

Liobole galaxaura

Savagellites

Cancrinella subtilis

Liobole glabroides

Scacchinella primitiva

Candona

Liobole liebsteinensis

Scacchinella triangulata

Candona elongata

Liobolina

Scalaeoptera

Caneyella

Lioclema pushmatahensis

Scalaeoptera recta

Caneyella peculiaris

Lioestheria

Scaldia

Caneyella richardsoni

Liomesaspis

Scaliognathus

Caneyella wapanuckensis

Liomesaspis laevis

Scaphiocrinus

Caninia

Liomopterites

Scaphiomanon

Caninia cornucopiae

Liomopterites germanicus

Scaphiomanon hadros

Caninia montanensis

Lipinella

Scaphiomanon nodulosum

Caninia torquia

Liraloron

Scepasma

Caninophyllum

Liraloron cornoviorum

Scepasma gigas

Caninophyllum archiaci

Liraria

Scepasma mediomatricorum

Caninophyllum domheri

Liriplica

Schagonella

Caninophyllum gigantea

Liriplica alta

Schagonella amplissima

Caninostrotion

Liroceras

Schagonella cylindrica

Canobius

Liroceras devjatovense

Schagonella ljakanica

Canobius elegantulus

Liroceras excentricum

Schagonella procera

Cantabrala

Liroceras fornicatum

Schartymites

Cantabrala gandli

Liroceras liratum

Schartymites aravanensis

Cantabricanites

Liroceras missouriensis

Schartymites barbotanus

Cantabricanites greenei

Liroceras praelunense

Schartymites chumazensis

Cantabriella

Liroceras ruzhencevi

Schartymites coangustus

Capetus

Lispacanthus

Schartymites methorius

Capetus palustris

Lispacanthus retrogradus

Schartymites paynei

Capillomesolobus

Lispidecodus

Schedoneura

Capillomesolobus karavankensis

Lispidecodus plinthotus

Schedoneura amii

Capillomesolobus pontebbanus

Lispoceras

Scheiia

Capulus

Lispoceras proconsul

Schellwienella

Carbocyrtina

Lissochonetes

Schellwienella alternata

Carbohymen

Lissochonetes amazonicus

Schellwienella burlingtonensis

Carbohymen testai

Lissochonetes geinitzianus

Schellwienella chouteauensis

Carbolohmannia

Lissochonetes geronticus

Schellwienella crenistria

Carbolohmannia maimaiphilus

Lissochonetes parvisulcatus

Schellwienella crenulicostata

Carbonicola

Lissodus

Schellwienella inaequalis

Carbonita

Lissomarginifera shastensis

Schellwienella inflata

Carbonita tumida

Lissomartus

Schellwienella planumbona

Carbonocoryphe

Lissomartus schucherti

Schellwienella radialis

Carbonocoryphe amphiro

Listracanthus

Schistoceras

Carbonocoryphe depressa

Listracanthus hystrix

Schistoceras missouriense

Carbonocoryphe planucauda

Lithentomum harttii

Schistoceras suburalense

Carbonoherpeton

Lithomantis

Schistoceras unicum

Carbonokata

Lithomantis bohemica

Schistoceras uralense

Carbonokata storozhenkoi

Lithomantis carbonarius

Schizoblastus

Carbonoproetus

Lithomantis meyeri

Schizoblatta

Carbonoproetus zeuxo

Lithomantis varius

Schizoblatta alutacea

Carbonoschwagerina morikawai

Lithomantis woodwardi

Schizoblatta pennsylvanica

Carbonympha

Lithomylacris ataxica

Schizobolus

Carbonympha herdinai

Lithomylacris gallica

Schizodus

Carbosesostris

Lithoneura

Schizodus acuminatus

Carbosesostris megaliphagon

Lithoneura clayesi

Schizodus affinis

Carbotriplura

Lithoneura lameerei

Schizodus alpinus

Carbotriplura kukalovae

Lithoneura mirifica

Schizodus amplus

Carbotubulus

Lithoneura piecko

Schizodus chesterensis

Carbotubulus waloszeki

Lithophaga

Schizodus cuneatus

Carcharopsis

Lithophaga subelliptica

Schizodus curtus

Carcharopsis prototypus

Lithophyllum

Schizodus depressus

Carcharopsis wortheni

Lithoptilus

Schizodus ellioti

Carcinophyllum

Lithoptilus boulei

Schizodus globosus

Cardiarina

Lithosialis brongniarti

Schizodus meekanus

Cardiarina cordata

Lithosialis carbonaria

Schizodus minutus

Cardiella ganti

Lithosialis daviesii

Schizodus ovatus

Cardiella sulcata

Lithosialis truemani

Schizodus rossicus

Cardiocarpon

Lithostrotion

Schizodus subcircularis

Cardiocarpus

Lithostrotion araneum

Schizodus trigonalis

Cardiola

Lithostrotion decipiens

Schizodus ulrichi

Cardiola lyoni

Lithostrotion mclareni

Schizodus wheeleri

Cardiomorpha

Lithostrotion mutabile

Schizodus wyomingensis

Cardiomorpha inflata

Lithostrotion sinuosum

Schizophoria

Cardiomorpha missouriensis

Lithostrotion vorticale

Schizophoria (Schizophoria) australis

Cardiomorpha obovata

Lithostrotion warreni

Schizophoria chouteauensis

Cardiopteridium

Lithostrotionella

Schizophoria depressa

Cardiopteris

Lithostrotionella birdi

Schizophoria lata

Cardiothyris

Litocrinus

Schizophoria resupinata

Cardita haliotoidea

Litoneura

Schizophoria verulamensis

Cardium ouralicum

Litoneura anthracophila

Schizopteris

Careoseptum

Litostrobus

Schizostoma africanum

Careoseptum septentrionalis

Litostrobus iowensis

Schizostoma calyx

Caridosuctor

Littorinides

Schlechtendaliola

Caridosuctor populosum

Littorinides solidum

Schlechtendaliola nympha

Carinanema

Lituotuba

Schmidtopteron

Carinanema kietzkei

Lituotubella

Schmidtopteron adictyon

Carinthiaphyllum bayanbulagense

Livetiblatta

Schneidarachne

Carinthiaphyllum grandis

Livetiblatta incerta

Schneidarachne saganii

Carinthiaphyllum subdendroidea

Lobeatta

Schoenaster

Carlinia

Lobeatta schneideri

Schoenaster fimbriatus

Carlopsocrinus

Lochengia

Schoenophyllum

Carnauba

Lochmocercus

Schondorfia

Carnauba oiticica

Lochmocercus aciculodontus

Schondorfia fungosa

Carpenteroptera

Lochriea

Schramocaris

Carpenteroptera onzii

Lochriea commutata

Schramocaris gilljonesorum

Carpenteroptera rochacamposi

Lochriea homopunctatus

Schrenkiella

Carpentertypus

Lockeia

Schrenkiella schrenki

Carpentertypus durhami

Lockeia siliquaria

Schubertella

Carpolithes

Loculipora

Schubertella acuta

Carpolithus

Loeblichia

Schubertella australis

Carruthersella

Loganiella canadensis

Schubertella donetzica

Caruthia

Lomaphyllum

Schubertella kingi

Caseodus

Lomaphyllum cancellatum

Schubertella magna

Caseodus basalis

Lomovatka

Schubertella mjachkovensis

Caseodus eatoni

Lomovatka udovichenkoi

Schubertella polymorpha

Casineria

Lonchodina

Schubertella porrecta

Casineria kiddi

Lonchodus

Schubertella quadrata

Catadyesthus

Longiclava

Schubertella simensis

Catadyesthus priscus

Longiclava tumida

Schubertina

Catastroboceras

Longstaffia

Schubertina borealis

Catastroboceras consanguineum

Longzhua

Schubertina globulosa

Catastroboceras quadratum

Longzhua loculata

Schubertina miranda

Catastroboceras subsulcatiformae

Lonsdaleia

Schuchertella

Catazona

Lonsdaleia duplicata

Schuchertella costatula

Catazona rudilirata

Lophamplexus

Schuchertella guizhouensis

Catillocrinus

Lophiostroma

Schuchertella humboldtensis

Caulopteris

Lophoblastus

Schuchertella lens

Caulostrepsis

Lophoceras bifrons

Schuchertella radialis

Caunopora

Lophoceras eichwaldi

Schuchertiella

Cavellina

Lophoceras okense

Schuchertiella gracilis

Cavellina fittsi

Lophoceras pentagonum

Schwagerina campensis

Cavellina glandella

Lophoceras regulus

Schwagerina dunbarinellaformis

Cavellina lata

Lophoceras rossicum

Schwageriniformis

Cavellina marmorea

Lophophyllidium

Schwageriniformis acutatus

Cavellina subovata

Lophophyllidium (Lophophyllidium) compressum

Schwageriniformis anosovae

Cavernella supercarbonica

Lophophyllidium (Lophophyllidium) confertum

Schwageriniformis arpaensis

Cavilentia

Lophophyllidium (Lophophyllidium) distortum

Schwageriniformis asiaticus

Cavilentia tenuicula

Lophophyllidium (Lophophyllidium) wewokanum

Schwageriniformis cuneatus

Cavusgnathus

Lophophyllidium interseptatum

Schwageriniformis kalcagarensis

Cavusgnathus gigantus

Lophophyllidium profundum

Schwageriniformis magnificus

Cavusgnathus lautus

Lophophyllidium proliferum

Schwageriniformis mundulus

Cavusgnathus missouriensis

Lophophyllidium vallum

Schwageriniformis ortashensis

Cayeuxia

Lophophyllum

Schwageriniformis planus

Celox

Lophophyllum konincki

Schwageriniformis schwageriniformis

Celox erratica

Lophotichium

Schwageriniformis tianshanicus

Cenorhynchia

Lophotriletes

Schyschcatocrinus levis

Centrodus

Lorocrinus

Sciadiocrinus

Centrodus striatulus

Lorocrinus zanguensis

Sciadiocrinus cascus

Centronella

Lotzia

Sciadiocrinus crassacanthus

Centronelloidea

Lotzia neglecta

Sciadiocrinus humilis

Centrorhynchus

Loxomma

Sciadiocrinus tegillum

Cephalerpeton

Loxomma acutirhinus

Scincosaurus

Cephalerpeton ventriarmatum

Loxomma allmanni

Scincosaurus crassus

Ceratammina

Loxomma bohemicum

Scincosaurus spinosus

Ceraterpeton recticorne

Loxomma lintonensis

Sciophyllum

Ceratoikiscum

Loxomma rankini

Scissuradentalium

Ceratoikiscum avimexpectans

Loxonema

Scissuradentalium runnegari

Ceratoikiscum umbraculum

Loxonema ningxiaensis

Scolecopteris

Ceraunocochlis

Loxonema obsoleta

Scolecopteris unita

Ceraunocochlis australis

Loxonema obsoletum

Scoliorhiza

Ceraunocochlis blatta

Loxonema pikensis

Scoliorhiza kellyi

Ceraunocochlis fulminula

Loxonema scalarioideum

Scoloconcha

Ceraunocochlis polyphemoides

Lublinophyllum

Scolopodus

Ceraunocochlis tenuis

Luciella

Scolopodus oklahomensis

Cercariomorphus

Luciella eliana

Scolopodus striatum

Cercariomorphus parvisquamis

Luciella limbata

Scotiacrinus

Ceriocrinus

Luciellina

Scutepustula

Cerithioides

Luciellina helicinoides

Scyphoceras

Cerithioides gleanensis

Luciellina ocultabanda

Scyphoceras primulum

Cerithioides judiae

Luciellina poolvashensis

Scytalocrinus

Cerithioides telescopium

Luciellina squamula

Scytalocrinus crassibrachiatus

Cervella

Lucina

Scytalocrinus sansabensis

Cervifurca

Lugalella

Sedenticellula

Cervifurca nasuta

Lugtonia

Sedenticellula hamburgensis

Cestocrinus

Lumbriconereites

Sedenticellula sacra

Chaenocardia

Lumectaster

Selaginella

Chaenocardia carbonifera

Lumectaster howelli

Selaginellites

Chaenocardiola

Lunulacardium

Selenella

Chaenocardiola haliotoidea

Lunulazona

Selenimyalina

Chaenocardiola triangulata

Lunulazona costata

Sellardsicrinus

Chaenomya

Lunulazona nodomarginata

Sellardsula

Chaenomya caatingaensis

Lunulazona sablei

Sellardsula cordata

Chaenomya leavenworthensis

Lunulazona springeri

Sellardsula radialis

Chaetetella

Lusiella

Semenewia

Chaetetes

Lusiella fariai

Semicostella

Chaetetes eximius

Lusiella greberi

Seminolites

Chaetetes milleporaceus

Lusitaneura

Seminolites kosomensis

Chaetetipora

Lusitaneura covensis

Seminolites perforatus

Chagrinia

Lusitanites

Seminolites pushmatahensis

Chalepomylacris pulchra

Lusitanites concavus

Seminovella

Chaloneria

Lusitanites multicavus

Seminula

Chamasaurus

Lusitanites zousfanensis

Semiplanus

Chamasaurus dolichognathus

Lusitanoceras

Semiproductus

Chamishaella

Luterospongia

Semiproetus

Chamishaella qilianshanensis

Luterospongia texana

Senekichthys

Cheggatella

Lutulentus

Senekichthys hirundo

Cheilotrypa

Lutulentus muralspineus

Senftenbergia

Cheirodopsis

Lychnophorites

Sentosia

Cheirodota traquairii

Lychnophorites dichotomus

Sentosia spinigera

Cheirostrobus

Lycocercus

Septabrunsiina

Cheirostrobus pettycurensis

Lycocercus goldenbergi

Septacamera

Cheliphlebia

Lycocercus pictus

Septimyalina

Cheliphlebia argillacea

Lycodemas

Septimyalina burmai

Cheliphlebia carbonaria

Lycodemas adolescens

Septimyalina perattenuata

Cheliphlebia mazona

Lycodus garretti

Septimyalina scitula

Chelyophorus

Lycopodites

Septopora

Chelyophorus griffithii

Lycopogenia

Septopora alternata

Chenilleophycus

Lycopogenia callicyrta

Septopora biserialis

Chenxiella

Lycospora

Septopora cestriensis

Chenxiella liuae

Lycostachys

Septopora robusta

Chinacrinus

Lycostachys protostelicus

Septosyringothyris

Chinacrinus xinjiangensis

Lyginopteris

Septosyringothyris jaguelensis

Chiridota

Lyginopteris oldhamia

Serenichthys

Chirodipterus potteri

Lyginorachis

Serenichthys kowiensis

Chirodus

Lyginorachis papilio

Serenida

Chirodus orbicularis

Lyrasperma

Serenida seminalis

Chirodus pesranae

Lyrasperma scotica

Sergospirifer

Chlidanophyton

Lyrogoniatites

Serpula

Chlidanophyton dublinensis

Lyrogoniatites georgiensis

Serpulites

Chlidonocrinus

Lyrogoniatites mediator

Serpulospira

Chlorozyga

Lyrogoniatites mutabilis

Serpulospira paradoxus

Chlorozyga decussata

Lyrogoniatites tener

Serpulospira planispira

Chlupacula

Lyropora

Serpulospira scalariformis

Choctawites

Lysorophus

Sestrophyllum

Choctawites choctawensis

Lysorophus tricarinatus

Setigerites

Choctawites cumminsi

Lytheoceras

Severinopsis

Choctawites kentuckiensis

Lytheoceras nitidum

Severinopsis vetusta

Chomatodus

Lytheoceras subcrassulum

Severinula

Chomatodus denticulatus

Lytvolasma

Severinula leopoldi

Chomatodus inconstans

Lytvolasma aucta

Sevillia

Chomatodus oliquus

Lytvophyllum

Sevillia trinucleata

Chomatodus truncatus

Mackinneyella

Shamovella

Chomotriletes

Maclurites

Shansiella

Chondrenchelys

Macrerpeton

Shansiella beckwithana

Chondrenchelys problematica

Macrerpeton huxleyi

Shansiella broadheadi

Chonetella

Macrochilina acuta

Shansiella canaliculatus

Chonetes

Macrochilina naticaeformis

Shansiella carbonaria

Chonetes chesterensis

Macrochilina piltonensis

Shansiella globosa

Chonetes glenparkensis

Macrochilina pusilla

Shansiella tongxinensis

Chonetes illinoisensis

Macrochilina rectinea

Shenzhousia

Chonetes logani

Macrochilina turbinea

Shenzhousia qilianshanensis

Chonetes mesoloba

Macrocrinus

Sherborniella

Chonetes multicosta

Macrocypris

Sherborniella hemingwayi

Chonetes oklahomensis

Macrocypris menardensis

Shishaella

Chonetina

Macrodictya

Shishoviclema

Chonetina choteauensis

Macrodictya stenomediali

Shivaella

Chonetinella

Macrodontophion

Shleesha

Chonetinella flemingi

Macromerion

Shleesha pinguis

Chonetinella makovi

Macromerion schwartzenbergii

Shulgapora

Chonetinella parva

Macronotella

Shulgapora testata

Chonetinella verneuilana

Macrophlebium

Shumardella obsolescens

Chonetipustula

Macrophlebium hollebeni

Shumardites

Chonetipustula carringtoniana

Macropotamorhynchus

Shumardites aktubensis

Chonetipustula concentrica

Macrostachya infundibuliformis

Shumardites confessus

Chonetipustula turcica

Madera

Shumardites cuyleri

Chonopectus

Madera mamayi

Shumardites librovitchi

Chonopectus fischeri

Maeandrostia

Shumardites simondsi

Choristes

Maeandrostia kansasensis

Shwedagonia

Choristitella

Maemia

Siberiohymen

Choristites fritschi

Magnumbonella

Siberiohymen asiaticus

Choristites mosquensis

Magnuscrinus

Sibiroblatta flexuosa

Choristites paichingiensis

Maiocercus

Sibyrhynchus

Choristites pavlovi

Maiocercus celticus

Sibyrhynchus denisoni

Chrestotella

Maligneocrinus

Siderella

Chrestotella danae

Malnina

Siderella scotti

Chrestotes

Mametella

Siedleckia

Chrestotes lapidea

Mammia

Sigillaria

Christioceras

Mammia alutacea

Sigillaria brardii

Christioceras trifurcatum

Mammoides

Sigillaria scutellata

Chuiella

Manankovia

Sigillariopsis

Chuiella aitegouensis

Manillacrinus

Sigillariostrobus

Chumazites

Manillacrinus brownei

Sigournea

Chumazites alter

Manoblatta bertrandi

Sigournea multidentata

Chumazites primus

Manoblatta chalardi

Siksika

Cibecuia

Manoblatta schmidtii

Siksika ottae

Cibecuia magnum

Mapesites

Silenis

Cibolocrinus

Mapesites chautauquaensis

Silenites

Cibolocrinus bellus

Maranhites

Silenites lenticularis

Cibolocrinus circulus

Marathonites

Silesiapteron

Cibolocrinus spinosus

Marathonites moorei

Silesiapteron jarmilae

Cibolocrinus tumidus

Marathonites uralensis

Silesiops

Cimitaria

Marathonites vidriensis

Silphion

Cimmeriella

Margaritichnus

Silphion latipenne

Cimmeriella willi

Margaritichnus mansfieldi

Silvanerpeton

Cinclidonema

Marginatia

Silvanerpeton miripedes

Cinclidonema marocensis

Marginicinctus

Similihariotta

Cinclidonema texanum

Marginifera

Similihariotta dabasinskasi

Cincosaurus

Marginifera haydenensis

Simmorius

Cincosaurus cobbi

Marginifera juresanensis

Simplicius

Cincosaurus fisheri

Marginifera longispina

Simplicius simplex

Cincosaurus jaggerensis

Marginifera tetraspina

Sinistriconcha

Cincosaurus jonesii

Marginifera unsulcata

Sinistriconcha minutissimus

Cinctifera

Marginirugus

Sinitshenkovae huenickeni

Cionodendron

Marginirugus barringtonensis

Sinochonetes

Cirratriradites

Marginovatia

Sinocrinus

Citronites

Marginovatia aureocollis

Sinodiapha

Cladites

Marginovatia catinulus

Sinodiapha ramosa

Cladites bracteatus

Marginovatia duodenaria

Sinodunbaria

Cladochonus

Marginovatia eurekensis

Sinodunbaria jarmilae

Cladochonus beecheri

Marginovatia manardensis

Sinogerarus

Cladochonus crassus

Marginovatia minor

Sinogerarus pectinatus

Cladochonus tenuicollis

Marginovatia pumila

Sinonamuropteris

Cladodus

Marianoceras

Sinonamuropteris ningxiaensis

Cladodus lamnoides

Marianoceras marianum

Sinopalaeopteryx

Cladodus marginatus

Mariceras

Sinopalaeopteryx olivieri

Cladodus mirabilis

Mariopteris

Sinopalaeopteryx splendens

Cladodus newmani

Mariopteris nervosa

Sinopetaloblastus

Cladopora

Marmolatella

Sinopetaloblastus grabaui

Cladoselache

Marmolatella ambiguus

Sinopora

Cladoselache clarki

Marmolatella ampliata

Sinopteron

Cladoxylon

Marmolatella sigaretiformis

Sinopteron huangheense

Clathrocrinus

Marmolatella subovata

Sinostega

Clathrocrinus clathratus

Martinia contracta

Sinostega pani

Clathrocrinus clinatus

Martinia corculum

Sinuatella

Clathrospongia

Martinia decora

Sinuatella sinuata

Clausotrypa

Martinia frechi

Sinuitina

Clausotrypa monticola

Martinia fulingensis

Sinuitina (Spirilira) gonzalezi

Clavallus

Martinia glabra

Sinuitina (Vorticina) venata

Clavallus spicaudina

Martinia pentagonalis

Sinuitina cordiformis

Clavicosta

Martinia rostrata

Sinuitina duchastelii

Clavicosta echinata

Martinia undatifera

Sinuitina gratiosus

Claviphyllum

Martinidiscus

Sinuitina portulacoides

Cleffia

Martinidiscus woodwardii

Siphonodella

Cleffia palatina

Martiniella

Siphonodella uralica

Cleffia sarana

Martiniella major

Siphonodendron

Cleiothyridina

Martiniopsis

Siphonodendron irregulare

Cleiothyridina barbata

Martiniopsis grandiformis

Siphonodendron junceum

Cleiothyridina deroissyi

Martiniopsis orientalis

Siphonodendron martini

Cleiothyridina orbicularis

Martinothyris

Siphonodendron pauciradiale

Cleiothyridina prouti

Masloviporella

Siphonodendron scaleberense

Cleiothyridina tenuilineata

Masonoceras

Siphonophyllia

Cleistopora

Masonoceras kentuckiense

Siphonophyllia samsonensis

Cleodictya

Mastoblastus

Siphonotreta

Clepsydrops

Mastoblastus ornatus

Skelidorygma

Clepsydrops collettii

Maternella

Skolithos linearis

Clepsydrops magnus

Matthewichnus

Sloveniaxon

Clepsydrops vinslovii

Matthewichnus caudifer

Sloveniaxon degrootae

Clepsydropsis antiqua

Mauryella

Sloveniaxon pinguis

Clidophorus

Maxigoniatites

Sochkineophyllum

Climacammina

Maxigoniatites globostriatus

Soederberghia

Climacammina valvulinoides

Maxigoniatites saourensis

Soederberghia groenlandica

Climaconeura

Maxigoniatites tafilaltensis

Sokolskya

Climaconeura reumauxi

Maximites

Solemya

Clinopistha

Maximites alexanderi

Solemya radiata

Clinopistha levis

Maximites cherokeensis

Solemya trapezoides

Clinopistha radiata

Maximites nassichuki

Soleniscus

Cliona

Maximites oklahomensis

Soleniscus (Macrochilina) humilis

Cliotrypa

Mayomyzon

Soleniscus aplatus

Clisiophyllum

Mayomyzon pieckoensis

Soleniscus callosus

Clisiophyllum keyserlingi

Mazocarpon

Soleniscus gracilis

Clistoceras

Mazocarpon shorense

Soleniscus klipparti

Clistoceras globosum

Mazoglossus

Soleniscus minor

Clonopora

Mazoglossus ramsdelli

Soleniscus monodontiformis

Cluthoceras

Mazonopsocus

Soleniscus regularis

Cluthoceras glicki

Mazonopsocus testai

Soleniscus typicus

Cluthoceras neilsoni

Mazonopterum

Soleniscus variabilis

Cluthoceras truemani

Mazonopterum cooperi

Solenochilus

Clwydia

Mazonopterum wolfforum

Solenochilus collectum

Clwydia decussata

Mazothairos

Solenochilus floweri

Clydagnathus

Mazothairos enormis

Solenochilus peculiare

Cnemidolestes

Mcluckiepteron

Solenochilus shumwayense

Cnemidolestes woodwardi

Mcluckiepteron luciae

Solenodendron

Cobaloblatta

Meandrostia

Solenodonsaurus

Cobaloblatta simulans

Mecynoptera

Solenodonsaurus janenschi

Coccosteus

Mecynoptera splendida

Solenomorpha

Coccosteus carbonarius

Mecynostomata

Solenomorpha lamborni

Cochleosaurus

Mecynostomata dohrni

Solenomorpha nitida

Cochleosaurus bohemicus

Mecynostomites

Solenomya sharonensis

Cochleosaurus florensis

Mecynostomites brongniarti

Solenopora

Cochlichnus

Medfrazyga

Solisphaeridium

Cochlichnus anguineus

Mediapora

Sollasia

Cochliodus

Mediapora injaensiformis

Solutotherates

Cochliodus acutus

Mediocris (Plectomediocris) venustus

Solutotherates analis

Cochliodus contortus

Mediocris breviscula

Somaspidion

Cochliodus occidentalis

Mediocris mediocris

Somaspidion hammapheron

Cockerelliella sepulta

Mediocris terminalis

Somoholites

Codaster

Medullosa

Somoholites bamberi

Codonophycus

Meekechinus

Somoholites dolium

Codonophycus austinii

Meekella

Somoholites glomerosus

Codonotheca

Meekella striatocostata

Somoholites ikensis

Codonotheca caduca

Meekopinna

Somoholites merriami

Coelacanthus

Meekopinna americana

Somoholites sholakensis

Coelacanthus exiguus

Meekopora

Sooblatta

Coelacanthus lepturus

Meekopora magna

Sooblatta boltoniana

Coelacanthus tingleyensis

Meekoporella

Sooblatta deanensis

Coeliocrinus

Meekospira

Sooblatta lanceolata

Coelocaulus

Meekospira acrolopha

Sooblatta ovata

Coelocladia

Meekospira bambooformis

Sooblatta stephanensis

Coelocladia spinosa

Meekospira batteni

Sooblatta villeti

Coelocladiella

Meekospira choctawensis

Soomylacris burri

Coelocladiella lissa

Meekospira delgada

Soomylacris flexuosus

Coeloclemis

Meekospira evansvillensis

Soomylacris gallica

Coelogasteroceras

Meekospira minuta

Soomylacris lievinensis

Coelogasteroceras gracile

Meekospira mississippiensis

Soomylacris lotharingiae

Coelonautilus

Meekospira peracuta

Soomylacris obesa

Coelosporella

Megacanthopora

Soomylacris pruvosti

Coelostegus

Megacanthoporina

Soomylacris strahani

Coelostegus prothales

Megacanthoporina composita

Soris

Coenaphrodia

Megachonetes

Soris labiosus

Coenites

Megadesmus

Sorosphaera

Coenocystis

Megaglossoceras

Sostronocrinus

Coledium

Megaglossoceras glicki

Sostronocrinus quadribrachiatus

Coledium altisulcatum

Megaglossoceras okense

Spaniocrinus

Coledium angarium

Megaglossoceras pristinum

Spaniodera simplex

Coledium bowsheri

Megagnatha

Sparodus

Coledium cestriensis

Megagnatha odonatiformis

Sparodus validus

Coledium dutroi

Megalichthys

Spathella

Coledium erugatum

Megalichthys hibberti

Spathelopsis

Coledium evexum

Megalichthys pygmaeus

Spathelopsis browni

Coledium explanatum

Megaliocrinus

Spathicephalus

Coledium satuni

Megaliocrinus aplatus

Spathicephalus marsdeni

Coledium therum

Megalocephalus

Spathicephalus mirus

Coledium torvum

Megalocephalus lineolatus

Spathicephalus pereger

Coledium undulatum

Megalocephalus pachycephalus

Spathognathodus

Coledium vadosulcatum

Megalodon

Spathulopteris

Coleolus

Megalometer

Spathulopteris obovata

Collectoceras dombarense

Megalometer lata

Spencerites

Collettosaurus

Megalopteris dawsoni

Spencerites insignis

Collettosaurus missouriensis

Megambonia

Spermopteris

Colophragma

Meganeura

Spermopteris coriacea

Coloraderpeton

Meganeura monyi

Sphaerocodium

Coloraderpeton brilli

Meganeurina

Sphaerodoma

Colospongia

Meganeurina confusa

Sphaeroporella

Colospongia benjamini

Meganeurites

Sphaerostoma

Colospongia pramollensis

Meganeurites gracilipes

Sphaerostoma ovale

Colosteus

Meganeurula

Sphaleroblattina

Colosteus marshii

Meganeurula selysii

Sphaleroblattina ingens

Colosteus scutellatus

Megapleuron

Sphalmatoblattina

Colpites

Megapleuron zangerli

Sphalmatoblattina latinervis

Colpites minutus

Megapronorites

Sphecoptera

Colpites monilifera

Megapronorites baconi

Sphecoptera brongniarti

Colpites tiara

Megapronorites itimensis

Sphecoptera gracilis

Colpodexylon

Megapronorites sakmarensis

Sphecoptera minor

Colpomya

Megaptiloides

Sphecoptera pulchra

Columbiapora

Megaptiloides brodiei

Sphecorydaloides

Comasphaeridium

Megaptilus

Sphecorydaloides lucchesei

Commentrya maximae

Megaptilus blanchardi

Sphenacanthus

Commutatophyllum

Megarachne

Sphenacanthus costellatus

Composita

Megarachne servinei

Sphenacanthus hybodioides

Composita elongata

Megathentomum

Sphenomylacris

Composita girtyi

Megathentomum pustulatum

Sphenomylacris singularis

Composita idahoensis

Megathentomum scudderi

Sphenophyllostachys

Composita magnicarina

Megistocrinus

Sphenophyllum

Composita ovata

Melanerpeton sembachense

Sphenophyllum angustifolium

Composita rotunda

Melanoblattula

Sphenophyllum cuneifolium

Composita sigma

Melanoblattula nigrescens

Sphenophyllum emarginatum

Composita subquadrata

Melanophyllidium

Sphenophyllum longifolium

Composita subtilita

Melanophyllum

Sphenophyllum majus

Composita tetralobata

Melinophlebia

Sphenophyllum myriophyllum

Composita trinuclea

Melinophlebia analis

Sphenophyllum oblongifolium

Compsaster

Melocrinus ornatus

Sphenophyllum tennerrimum

Compsaster formosus

Melonechinus

Sphenophyllum thonii

Compsoblatta

Melongena

Sphenopteridium

Compsoblatta anaglyptica

Melvilloceras

Sphenopteridium dissectum

Compsoblatta anthracophila

Melvilloceras sabinensis

Sphenopteris

Compsoblatta couloni

Meniscocrinus

Sphenopteris pottsvillea

Compsoblatta frankei

Meniscophyllum

Sphenothallus

Compsoblatta nobilis

Menoeidina

Sphenotus aeolus

Compsoblatta ovata

Menophyllum

Sphenotus altidorsatus

Compsoblatta plana

Menorcaspis

Sphenotus branneri

Compsonema

Merismopteria

Sphenotus dubius

Compsonema fragile

Merismopteria salinensis

Sphenotus meslerianum

Compsoneura

Merista

Sphenotus meslerianus

Compsoneura formosa

Merista maccullochensis

Sphenotus monroensis

Compsoneura fusca

Meristocrinus

Sphenotus pisinnus

Comptonaspis

Meristorygma

Sphenotus washingtonensis

Comuquia

Merlebachia

Spiculum

Comuquia curvirostris

Merlebachia grimaudi

Spiculum mendicum

Concavicaris

Merlewoodia

Spilaptera

Conchodus elkneri

Merocanites

Spilaptera americana

Conchodus parvulus

Merocanites djaprakensis

Spilaptera libelluloides

Concordia

Merocanites drostei

Spilaptera packardi

Condranema magna

Mertovia

Spilaptera splendens

Condraoceras

Mertovia sustai

Spilaptera tanaica

Condraoceras primum

Mesanerpeton

Spilaptera venusta

Condrathyris perplexa

Mesanerpeton woodi

Spiloblattina

Conoblastus

Mesitoblatta

Spiloblattina lawrenceana

Conoblastus invaginatus

Mesitoblatta emersoni

Spiloblattina pygmaea

Conocardium

Mesitoblattella

Spiloblattina variegata

Conocardium aliforme

Mesitoblattella longipennis

Spiloblattinidae zinkeniana

Conocardium decussatum

Mesitoblattella saclieri

Spilomastax

Conocardium elongatum

Mesoblastus

Spilomastax oligoneurus

Conocardium formosum

Mesoblastus crenulatus

Spiloptilus

Conocardium inflatum

Mesocalamites

Spiloptilus ramondi

Conocardium spinalatum

Mesochorispira

Spinatrypa

Conophillipsia

Mesochorispira grimesi

Spinibolops

Conostoma

Mesolepis

Spinoaequalis

Consobrinella

Mesolobus

Spinoaequalis schultzei

Contocrinus

Mesolobus striatus

Spinobairdia

Contocrinus coupi

Mesolophodus

Spinocarinifera

Contocrinus stantonensis

Mesolophodus problematicus

Spinoendothyra

Controversala

Mesoplica

Spinofacia

Controversala miomopteroides

Mesopoma

Spinofacia pectinatus

Conularia

Mesopoma carricki

Spinofenestella

Converrucosisporites

Mesopoma pulchellum

Spinofenestella spinulosa

Convolutispora

Mesoptilus dolloi

Spinuliplena

Cooleyella

Mesostrobus

Spinuliplica

Cooleyella cuspidata

Mesostrobus scottii

Spinuliplica spinulosa

Cooleyella fordi

Mesotarbus

Spiranodus

Cooleyella peculiaris

Mesotarbus angustus

Spirifer

Cooleyella quadrilobata

Mesotarbus eggintoni

Spirifer albertensis

Cooleyella quinqueloba

Mesotarbus hindi

Spirifer bisulcatus

Cooleyella simplex

Mesotarbus intermedius

Spirifer cascadensis

Cooleyella spatulata

Mesotarbus peteri

Spirifer centronatus

Cooperella eroda

Mesothyra

Spirifer chappelensis

Cooperella rectistriata

Mesoxylon

Spirifer gregeri

Cooperella selluliformis

Mesoxylopsis

Spirifer incertus

Cooperella striata

Mesoxylopsis arberae

Spirifer liangchowensis

Cooperella striatula

Mespilocrinus

Spirifer lirellus

Cooperella subsulcata

Mestognathus

Spirifer malistanensis

Cooperodon

Metablastus

Spirifer opimus

Cooperodon typicalis

Metabolarva

Spirifer pentagonoides

Cooperuna

Metabolarva bella

Spirifer rockymontanus

Copodus

Metacheliphlebia

Spirifer striatus

Copodus auriculatus

Metacheliphlebia elongata

Spirifer subgrandiformis

Copodus cornutus

Metachorus

Spiriferella

Copodus furcatus

Metachorus striolatus

Spiriferella primaeva

Copodus lingua

Metachorus testudo

Spiriferella yukonensis

Copodus minimus

Metaclepsydropsis

Spiriferellina

Cordaianthus

Metaclepsydropsis duplex

Spiriferellina baywullensis

Cordaianthus gemmifer

Metacoceras

Spiriferellina cristata

Cordaicarpon

Metacoceras copei

Spiriferellina lata

Cordaites

Metacoceras cornutum

Spiriferellina neerkolensis

Cordaites borassifolia

Metacoceras sangamonense

Spiriferina

Cornellites

Metacoceras vagans

Spiriferina panderi

Cornigella

Metacromyocrinus

Spirigerella

Cornigella pushmatahensis

Metacromyocrinus gillumi

Spirigerella grandis

Cornucarpus

Metacromyocrinus papulosus

Spirilira

Cornulitella

Metadimorphoceras

Spirillina

Cornulites

Metadimorphoceras mangeri

Spirillina bendensis

Cornuspira

Metadimorphoceras richardsi

Spirodesmos

Cornuspira semiconstrictus

Metadineuron

Spiromphalus

Coronalosia

Metadineuron ellipticum

Spiromphalus pervius

Coronalosia argentinensis

Metaperimestocrinus

Spirophyllum

Corphalia

Metaperimestocrinus aoertuensis

Spiroplectammina

Corphalia fourmarieri

Metaphillipsia

Spiropteris

Corticospongia

Metaphyloblatta

Spirorbis

Corticospongia bradfordensis

Metaphyloblatta nemejci

Spirorbis omphalotes

Corwenia

Metapoblatta

Spiroscala

Corwenia ashwillensis

Metapoblatta microptera

Spiroscala acuminata

Corydaloides

Metapronorites

Spiroscala georgiannae

Corydaloides scudderi

Metapronorites cuneilobatus

Spiroscala intermedia

Coryellina firma

Metapronorites ellesmerensis

Spiroscala intricata

Corynepteris

Metapronorites pseudotimorensis

Spiroscala pagoda

Corynotrypa

Metatarbus

Spiroscala rockymontana

Coryssochiton

Metatarbus triangularis

Spiroscala solida

Corythoecia

Metaxyblatta

Spondylerpeton

Coscinium

Metaxyblatta hadroptera

Spongentactinella veles

Coselia

Metaxygnathus

Spongentactinia

Coselia palmiformis

Metaxygnathus denticulatus

Spongiostroma

Cosmacanthus

Metaxys

Sporangites

Cosmacanthus carinatus

Metaxys fossa

Sporangites papillata

Cosmacanthus marginalis

Metelipora

Springeracrocrinus

Cosmacanthus priscus

Metichthyocrinus

Springericrinus

Cosmetocrinus

Metoedischia

Squatinactis

Cosmocrinus

Metoedischia lusitanica

Squatinactis caudispinatus

Cosmocrinus polonicus

Metoptoma

Srokalarva

Cosmomya

Metoptoma elliptica

Srokalarva berthei

Costalocrinus

Metoptoma imbricata

Stacheia

Costalocrinus cornutus

Metoptoma imbricatum

Stacheia congesta

Costatheca

Metoptoma pileus

Stacheia marginuloides

Costatoblastus

Metriophyllum

Stachella

Costatumulus

Metropator

Stachella inflata

Costatumulus altissima

Metropator pusillus

Stacheoides

Costatumulus amosi

Metropatorites

Staffella

Costatumulus farleyensis

Metropatorites kassenbergensis

Staffella pseudosphaeroidea

Costatumulus villiersi

Metutharocrinus

Stamnostoma

Costimitoceras

Metutharocrinus cockei

Stamnostoma huttonense

Costuloplica

Metutharocrinus spinifer

Staphylotheca

Costuloplica robertsi

Metutharocrinus undulatus

Staphylotheca kilpatrickensis

Costuloplica senilis

Mezorulganites

Staurasterias

Cradeocrinus

Miadesmia

Staurasterias elegans

Cranaena

Miadesmia membranacea

Staurocaudina

Cranaena circularis

Miamia

Staurocephalites

Cranaena concava

Miamia bronsoni

Stauropteris

Cranaena dorsisulcata

Miamia maimai

Stauropteris oldhamia

Cranaena hannibalensis

Miamia rossorum

Stearoceras

Cranaena texana

Miamia silvatica

Stearoceras gibbosum

Crania blairi

Miaroblatta

Stearoceras involutum

Crania chesterensis

Miaroblatta balachonensis

Stearoceras smithi

Crania dodgei

Miaroblatta elata

Stegacanthia

Crania rowleyi

Michelinia

Steganoposaurus

Crassigyrinus

Michelinia (Protomichelinia) wopfneri

Steganoposaurus belli

Crassigyrinus scoticus

Michelinia macerimuris

Stegocoelia

Crassumbo

Michelinia meekana

Stegocoelia (Hypergonia) acuminata

Crassumbo inornatus

Michelinoceras

Stegocoelia (Hypergonia) cincta

Crassumbo turgidus

Michelinoceras wapanuckense

Stegocoelia (Hypergonia) jonathanensis

Craticula

Micrentoma

Stegocoelia (Taosia) crenulata

Craticula gotlandica

Micrentoma nana

Stegocoelia acuta

Cravenia

Micrentoma yunnanensis

Stegocoelia alta

Cravenoceras

Micrhystridium

Stegocoelia berestovensis

Cravenoceras arcticum

Microantyx

Stegocoelia compacta

Cravenoceras beleutense

Microantyx botoni

Stegocoelia gzheliensis

Cravenoceras crassum

Microantyx mudgei

Stegocoelia kentuckiensis

Cravenoceras insolitum

Microantyx permiana

Stegocoelia klyazmaensis

Cravenoceras kullatinense

Microblattina

Stegocoelia knighti

Cravenoceras leion

Microblattina perdita

Stegocoelia korobcheevoensis

Cravenoceras leionoides

Microbrachis

Stegocoelia laschmaensis

Cravenoceras lineolatum

Microbrachis mollis

Stegocoelia longissima

Cravenoceras malhamense

Microbrachis pelikani

Stegocoelia nerinaeformis

Cravenoceras originale

Microcaracrinus

Stegocoelia nodosa

Cravenoceras petrenkoi

Microcaracrinus conjugulus

Stegocoelia okaensis

Cravenoceras scoticum

Microcheilinella

Stegocoelia okawensis

Cravenoceras shimanskyi

Microcheilinella inflata

Stegocoelia quadricincta

Cravenoceras tozeri

Microcochlis

Stegocoelia smithiana

Cravenoceratoides

Microcochlis parva

Stegocoelia turabievoensis

Cravenoceratoides hudsoni

Microcodium

Stegocoelia variabilis

Cravenoceratoides lirifer

Microcyathus

Stegops

Cravenoceratoides nitidus

Microdictya

Stegops newberryi

Crenipecten

Microdictya hamyi

Stelastellara

Crenispirifer

Microdictya handlirschi

Stelastellara parvula

Cribanocrinus

Microdictya lacroixi

Stelechophyllum

Cribanocrinus biseriatus

Microdictya latipennis

Stellarocrinus

Cribroconcha

Microdictya vaillanti

Stellarocrinus bilineatus

Cribrospira

Microdictya villeneuvei

Stellarocrinus qijiagouensis

Cricotus

Microdoma

Stellarocrinus stillativus

Cricotus heteroclitus

Microdoma angulata

Stellatheca

Crininicaminus

Microdoma anomalum

Stellatheca latiloba

Crininicaminus haneyensis

Microdoma bicrenulata

Stellatheca ornata

Crinisarina

Microdoma conica

Steloxylon

Crinodon

Microdoma conicum

Stemmatias

Crinodon limnophyes

Microdoma jamensis

Stemmatias simplex

Cromyocrinus

Microdoma longum

Stenocladia (Bryozoa)

Cromyocrinus grandis

Microdoma pagoda

Stenocladia enigma

Crossalosia

Microdoma sinelnikovae

Stenocrinus altus

Crossalosia buchiana

Micromelerpeton ulmetense

Stenodictya

Crossopodia

Micromitra

Stenodictya agnita

Crossopteris

Micromphalus

Stenodictya arnaudi

Crossopteris utahensis

Micromphalus turris

Stenodictya fritschi

Crossotheca

Micropalentomum

Stenodictya grandissima

Crurithyris

Micropalentomum minusculum

Stenodictya klebsi

Crurithyris expansa

Microptychis

Stenodictya laurentiauxi

Crurithyris parva

Microptychis cerithiformis

Stenodictya lobata

Crurithyris planoconvexa

Microptychis constricta

Stenodictya lusitanica

Crurithyris urei

Microptychis expetendus

Stenodictya minima

Crustopora

Microptychis insolita

Stenodictya oustaleti

Cruziana

Microptychis occabus

Stenodictya parisiana

Cruziana problematica

Microptychis pygmaea

Stenodictya perrieri

Cryphiocrinus

Microptychis turbineus

Stenodictya pygmaea

Cryptobairdia

Microptychis wrighti

Stenodictya spinosa

Cryptobairdia compacta

Microreticulatisporites

Stenodictya thevenini

Cryptoblastus

Microspatulina

Stenodictya vasseuri

Cryptophyllum

Microspermopteris

Stenodictyoneura

Cryptospirifer

Microspermopteris aphyllum

Stenodictyoneura belgica

Cryptovenator

Microspongia

Stenodiscus

Cryptovenator hirschbergeri

Microzygia

Stenodiscus giganteus

Cryptovenia

Microzygia lacunosa

Stenoglaphyrites

Cryptovenia moyseyi

Mikhailovella

Stenoglaphyrites gairensis

Ctenacanthus

Millepora

Stenoglaphyrites hesperius

Ctenacanthus amblyxiphias

Millerella

Stenoglaphyrites incisoides

Ctenacanthus buttersi

Millerella marblensis

Stenoglaphyrites incisus

Ctenacanthus compressus

Millerella pura

Stenoglaphyrites intraevolutus

Ctenacanthus denticulatus

Milleroceras

Stenoglaphyrites involutoides

Ctenacanthus elegans

Milleroceras parrishi

Stenoglaphyrites involutus

Ctenacanthus furcicarinatus

Milnererpeton

Stenoglaphyrites merriami

Ctenacanthus laevis

Milnererpeton huberi

Stenoglaphyrites miserabilis

Ctenacanthus minor

Milosaurus

Stenoglaphyrites miseri

Ctenacanthus pustulatus

Milosaurus mccordi

Stenoglaphyrites secretus

Ctenerpeton

Mimimitoceras

Stenoglaphyrites superincisus

Ctenerpeton primum

Mimimitoceras hoennense

Stenokoleos setchelli

Ctenerpeton remex

Mimimitoceras varicosum

Stenoloron

Ctenobactrites

Minilya

Stenoloron swallovana

Ctenobactrites lesliensis

Minirostrella

Stenoloron umbilicata

Ctenodonta

Minitaspongia

Stenomyelon

Ctenodus

Minitaspongia parvis

Stenomyelon tuedianum

Ctenodus roberti

Mintopteris

Stenomylacris elegans

Ctenodus williei

Mintopteris hirsuta

Stenomylacris montagnei

Ctenoptilus

Minutomarginifera

Stenoneura

Ctenoptilus elongatus

Minutomarginifera elegans

Stenoneura fayoli

Ctenoptychius

Minysphenia

Stenoneurites

Ctenoptychius apicalis

Minysphenia conopia

Stenoneurites maximi

Ctenoptychius dentatus

Miobatrachus

Stenopecrinus

Ctenoptychius serratus

Miobatrachus romeri

Stenopecrinus ornatus

Cubacula

Mirifusella

Stenophragmidium

Cubacula subpunctata

Mirilentia

Stenopora

Cubaxonium

Mirilentia micula

Stenopora angulata

Cubaxonium octaedrospongiosum

Mirilentia uberta

Stenoporella

Cucullaea

Miroblatta

Stenopronorites

Cucullopsis

Miroblatta costalis

Stenopronorites onerosus

Cucullopsis quadrata

Miroblatta oberstebrinki

Stenopronorites sersoni

Culmicrinus

Miscellanea

Stenopronorites uralensis

Culunana

Mischoptera

Stenoscisma

Cummingella

Mischoptera douglassi

Stenoscisma alpinum

Cuneiphycus

Mischoptera nigra

Stenoscisma shansiensis

Cuneognathus

Mitcheldeania

Stenoscisma wooi

Cuneognathus gardineri

Mitorthoceras

Stenozone

Cupitheca

Mitorthoceras crebriliratum

Stenozonotriletes

Cupularostrum

Mitorthoceras girtyi

Stephanastus

Curculioides

Mitorthoceras perfilosum

Stephanastus polinae

Curculioides adompha

Mitorthoceras yellvillense

Stephanomylacris

Curculioides ansticii

Mitrospermum

Stephanomylacris duriensis

Curculioides eltringhami

Mitrospermum compressum

Stephanomylacris zbyszewskii

Curculioides gigas

Mittagia

Stephanopsis

Curculioides granulatus

Mittagia seminiformis

Stephanopsis elegans

Curculioides mcluckiei

Mixoneura

Stephanopsis incerta

Curculioides pococki

Mixotermes

Stephanopsis mirandus

Curculioides scaber

Mixotermes lugauensis

Stephanotypus

Cusacrinus

Modiolopsis

Stephanotypus schneideri

Cyathaxonia

Modiolus

Stephanozyga

Cyathaxonia cornu

Modiolus (Modiolus) fountainensis

Stephanozyga crassa

Cyathocarinia

Modiolus (Modiolus) radiatus

Stephanozyga granda

Cyathocarinia tuberculata

Modiolus (Modiolus) waverliensis

Stephanozyga ignorata

Cyathoclisia

Modiomorpha

Stephanozyga magna

Cyathoclisia uralensis

Moellerites

Stephanozyga nodosa

Cyathocrinites

Moellerites paracolaniae

Stephanozyga subnodosa

Cyathocrinites planus

Moellerites praebocki

Stereobrachicrinus

Cyathocrinites ramosus

Molgophis

Stereochia

Cyathocrinus

Molgophis macrurus

Stereodepasophyllum

Cyathocrinus cornutus

Monitoceras

Stereodictyum

Cyathocrinus spurius

Monitoceras karpinskii

Stereodictyum orthoplectum

Cyathophyllum

Monoceratina ardmorensis

Stereodictyum proteron

Cyathotrachus

Monoceratina ventralis

Stereopteris

Cyathotrachus altus

Monophyllum

Stereopteris annularis

Cyathus

Monopteria

Stereorhachis

Cyathus ulrichi

Monotaxinoides

Stereorhachis dominans

Cyclites

Monotrypa

Stereostylus

Cyclites diminutus

Monotrypella

Sterzelia lamurensis

Cyclites globosa

Montceaupterum

Sterzelia steinmanni

Cyclites multilineata

Montceaupterum baillyi

Stethacanthulus

Cyclocaudex

Montcellia

Stethacanthulus longipeniculus

Cyclocaudiculus

Montcellia longidentata

Stethacanthulus meccaensis

Cyclocaudiculus longus

Montiparus

Stethacanthus

Cyclocelis chatini

Montiparus calitvicus

Stethacanthus altonensis

Cyclocelis obscura

Montiparus likharevi

Stethacanthus concavus

Cycloceras

Montiparus montiparus

Stethacanthus depressus

Cyclocion

Montiparus paramontiparus

Stethacanthus erectus

Cyclocrinus

Montiparus priscus

Stethacanthus gansuensis

Cyclocrista

Montiparus rhombiformis

Stethacanthus longipeniculus

Cyclocyclicus

Montiparus umbonoplicatus

Stewartiopteris

Cyclogranisporites

Montospira

Sthenarocera

Cyclonema

Montospira kempseyensis

Sthenarocera bureaui

Cyclopteris

Montospira kuttungensis

Sthenarocera pachytyloides

Cycloptychius

Moorea

Stichacanthus

Cycloptychius carbonarius

Mooreanteris

Stichacanthus coemansi

Cycloptychius concentricus

Moorefieldella

Stichacanthus tortworthensis

Cycloscapus

Mooreina

Stigmaria

Cycloscelis elegantissima

Mooreina johnsvalleyensis

Stigmaria ficoides

Cyclostelechus

Mooreoceras

Stigmaria stellata

Cyclotrypa

Mooreoceras regulare

Stigmariopsis

Cyclozyga

Mooreoceras wedingtonianum

Stigmosphaerostylus

Cyclozyga attenuata

Mooreocrinus

Stilbocrocis

Cyclozyga carinata

Moorites

Stilbocrocis heeri

Cyclozyga mirabilis

Moorites minutus

Stilbocrocis lanceolata

Cyclozyga neotenica

Mordex

Stilbocrocis pulchra

Cyclozyga sinusigera

Mordex calliprepes

Stinocrinus

Cyclus

Mordex laticeps

Stioderma

Cyclus americanus

Moreyella

Stioderma hadra

Cydonocrinus

Moreyella aviculiformis

Stioderma perforata

Cydrocrinus

Moreyella trilobata

Stipitopteris

Cylicioscapha

Moreyella typicalis

Stipulina

Cylindritopsis

Morozovapora

Stobbsia

Cylindritopsis vaningeni

Morrowcrinus

Stobbsia woodwardiana

Cymatiosphaera

Moschoglossis

Stomatopora

Cymatospira

Moskoviacrocrinus

Straeleniella

Cymatospira alternodosa

Mosquoceras

Straeleniella namurensis

Cymatospira montfortianus

Mosquoceras tschernyschewi

Straparella

Cymatospira welleri

Moundocrinus

Straparella fallax

Cymbiocrinus

Mourlonia

Straparella placidus

Cymenophlebia

Mourlonia carinata

Straparella striatus

Cymenophlebia carpentieri

Mourlonia expansa

Straparella umbilicata

Cymoceras

Mourlonia globosa

Straparollus

Cynopodius

Mourlonia lativittata

Straparollus (Euomphalus) asanoi

Cyperites

Mourlonia missouriensis

Straparollus (Euomphalus) brooksensis

Cyphinioides

Mourlonia naticoides

Straparollus (Euomphalus) carbonarius

Cyphomylacris

Mourlonia placida

Straparollus (Euomphalus) elegans

Cyphomylacris atrata

Mourlonia striata

Straparollus (Euomphalus) equalis

Cyphotalosia

Mourlonia textus

Straparollus (Euomphalus) konobasis

Cyphotalosia masonensis

Mourlonia venusta

Straparollus (Euomphalus) marginatiformis

Cypricardella

Mouydiria

Straparollus (Euomphalus) pancakensis

Cypricardella subalata

Mouydiria mouydirensis

Straparollus (Euomphalus) parvulus

Cypricardinia

Mouydiria scutula

Straparollus (Euomphalus) pernodosus

Cypricardinia fayettevillensis

Mucrospirifer

Straparollus (Euomphalus) pugilis

Cypricardinia fossa

Muelleroblatta

Straparollus (Euomphalus) subplanus

Cypridellina

Muelleroblatta camerata

Straparollus (Euomphalus) umbilicatus

Cypridellina newelli

Muensteroceras

Straparollus (Euomphalus) variabilis

Cypridina

Muensteroceras arkansanum

Straparollus (Straparollus) explanatus

Cypridinella

Muensteroceras collinsoni

Straparollus (Straparollus) mammula

Cyranorhis

Muensteroceras complanatum

Straparollus (Straparollus) ophirensis

Cyranorhis bergeraci

Muensteroceras multitudum

Straparollus (Straparollus) savagei

Cyrtentactinia

Muensteroceras oweni

Straparollus aequalis

Cyrtina

Muensteroceras parallelum

Straparollus ammon

Cyrtina burlingtonensis

Muensteroceras pfefferae

Straparollus brevis

Cyrtisphaeractenium

Muensteroceras pisiforme

Straparollus davidi

Cyrtisphaeractenium mendax

Muensteroceras quadriconstrictum

Straparollus dionysii

Cyrtoceras

Muensteroceras subparallelum

Straparollus heliciformis

Cyrtoclymenia stenomphala

Muensteroceratoides

Straparollus ineptus

Cyrtodontula

Muensteroceratoides aksuensis

Straparollus levigatus

Cyrtodontula subtruncata

Multidentodus

Straparollus macromphalus

Cyrtonodus

Multidentodus brevis

Straparollus pileopsideus

Cyrtonodus brevis

Multidentodus gracilis

Straparollus planorbiformis

Cyrtonodus fukujiensis

Multidentodus irregularis

Straparollus quadrivolvis

Cyrtonodus hornei

Multidentodus johnsvalleyensis

Straparollus spergenensis

Cyrtonodus nishioi

Multidentodus typicus

Straparollus vermis

Cyrtoproetus

Multidentodus wapanuckensis

Straparolus australis

Cyrtoproetus cracoensis

Multiplicisphaeridium

Straparolus subdionysii

Cyrtorizoceras

Multithecopora

Streblascopora

Cyrtospirifer

Multithecopora sokolovi

Streblochondria

Cyrtosymbole

Multithecopora syrinx

Streblochondria histion

Cyrtothoracoceras

Murchisonia (Donaldospira) dispar

Streblochondria infelix

Cystauletes kingi

Murchisonia (Glyphodeta) fimbricarinata

Streblochondria mutata

Cystelasma

Murchisonia (Hypergonia) fastigiata

Streblochondria senilis

Cystispina

Murchisonia (Stegocoelia) quinquecostata

Streblochondria stantonensis

Cystocladia

Murchisonia anglica

Streblochondria sueroi

Cystodactylon

Murchisonia defrancei

Streblochondria tenuilineata

Cystodactylon orbum

Murchisonia fusiformis

Streblochondria tiltoni

Cystodictya

Murchisonia hercynica

Streblodus

Cystodictya elegans

Murchisonia marri

Streblodus angustus

Cystolonsdaleia

Murchisonia subornata

Streblodus colei

Cystolonsdaleia arctica

Murchisonia vincta

Streblodus oblongus

Cystolonsdaleia carteri

Murospora

Strebloplax

Cystolonsdaleia hormos

Myalina

Streblopteria

Cystolonsdaleia obesa

Myalina (Myalina) arbala

Streblopteria girtyi

Cytherella

Myalina (Myalina) aviculoides

Streblopteria lagunensis

Cytherellina

Myalina (Myalina) lepta

Streblopteria minuta

Dabasacanthus

Myalina (Myalina) wyomingensis

Streblopteria oklahomensis

Dabasacanthus inskasi

Myalina (Orthomyalina) slocomi

Streblotrypa

Dactylophyllum

Myalina (Orthomyalina) subquadrata

Streblotrypa major

Dactylophyllum johnsoni

Myalina parallela

Streblotrypa triznae

Dactylotheca

Myalina pernaformis

Streblotrypella

Dainella

Mycterops

Strephocladus subtilis

Daixina (Bosbytauella) akbeitica

Mycterops whitei

Strepsodus

Daixina (Bosbytauella) bosbytauensis

Mylacridae carbonina

Strepsodus sauroides

Daixina (Bosbytauella) postgallowayi

Mylacridium

Streptacis

Daixina (Daixina) aquilonae

Mylacridium berlichi

Streptacis meeki

Daixina (Daixina) baituganensis

Mylacridium berlichianum

Streptacis scalpta

Daixina (Daixina) enormis

Mylacridium brongniarti

Streptacis whitfieldi

Daixina (Daixina) kodzhagulica

Mylacridium depressum

Streptognathodus

Daixina (Daixina) porrecta

Mylacridium diversum

Streptognathodus chanutensis

Daixina (Daixina) robusta

Mylacridium germari

Streptognathodus clarki

Daixina (Daixina) tormosensis

Mylacridium goldenbergi

Streptognathodus clavatulus

Daixina (Daixina) vasilkovskyi

Mylacridium gracile

Streptognathodus corrugatus

Daixina asiatica

Mylacridium handlirschi

Streptognathodus curvatus

Daixina convexa

Mylacridium incertum

Streptognathodus farmeri

Daixina crispa

Mylacridium jucundum

Streptognathodus flangulatus

Daixina delicata

Mylacridium longulum

Streptognathodus holmesi

Daixina privilegiata

Mylacridium nanum

Streptognathodus minutus

Daixina rugosa

Mylacridium planum

Streptognathodus multinodosus

Daixina sokensis

Mylacridium pulcrum

Streptognathodus rugosus

Daixites meglitzkyi

Mylacridium schroeteri

Streptognathodus ruidus

Dalduba

Mylacridium superbum

Streptognathodus spatulatus

Dalduba faticana

Mylacris

Streptognathodus strigillatus

Dalmanella

Mylacris abrupta

Streptognathodus subdivisus

Damocles

Mylacris ampla

Streptognathodus sulcatus

Damocles attenuatus

Mylacris angusta

Streptognathodus sulciferus

Damocles serratus

Mylacris anthracophila

Streptognathodus walteri

Danaea

Mylacris antiqua

Streptorhynchus

Danaea meccaensis

Mylacris antiquum

Streptorhynchus conicus

Danaeides

Mylacris burri

Streptorhynchus inaequiornatus

Danielsiella

Mylacris diplodiscus

Streptorhynchus tenuicostatum

Danielsiella priscula

Mylacris dubia

Striataspongia

Daonella

Mylacris lapsa

Striatifera

Darekia

Mylacris lucifuga

Striatochonetes

Darekia sanguinea

Mylacris lucifugum

Striatopodocarpites

Darvasoschwagerina

Mylacris morienensis

Striatopora

Darvasoschwagerina archaica

Mylacris ovalis

Striomonosaccites

Dasciocrinus

Mylacris pennsylvanica

Strobeus

Dasycladacea

Mylacris pennsylvanicum

Strobeus brevis

Dasyleptus

Mylacris sellardsi

Strobeus gouldiana

Dasyleptus lucasi

Mylacris sellardsii

Strobeus immanis

Dasyleptus noli

Mylacris similis

Strobeus intercalaris

Dasysaria

Mylacris truncatula

Strobeus mucronatus

Datangia

Mylacris virginiana

Strobeus nobilis

Datheosaurus

Myofossa

Strobeus ovalis

Datheosaurus macrourus

Myonia

Strobeus paludinaeformis

Davidsonia

Myonia pollocki

Strobeus poromus

Davidsonina

Myophoria

Strobeus primogenius

Daviesiella

Myriacantherpestes

Strobeus rectilinea

Daviesiella comoides

Myriotheca

Strobeus subglobosus

Dawsonerpeton

Myriotheca arnoldi

Strobeus ventricosus

Dawsonerpeton polydens

Myriotheca desaillyi

Strobeus welleri

Dawsonia polydens

Mytilarca

Strobilocystites

Debeerius

Mytilus

Stroboceras

Debeerius ellefseni

Myxineidus

Stroboceras ammoneus

Decadocrinus

Myxineidus gononorum

Stroboceras bicarinatum

Deceptrix

Myxinikela

Stroboceras gordoni

Deckerella

Myxinikela siroka

Stroboceras humerosum

Declinognathodus

Nacekomia

Stroboceras mstense

Declinognathodus noduliferus

Nacekomia rossae

Stroboceras sulcatum

Decorites

Nactocrinus

Stromatopora

Decorites avus

Naiadites

Strongylocrinus

Decorites crassicostatus

Namaichthys schroederi

Strongylocrinus hansoni

Decorites tenuicostatus

Namurodiapha

Strongylocrinus ornatus

Decorochilina phillipsii

Namurodiapha sippelorum

Strophalosia

Delafondia

Namuroningxia

Stropheodonta

Delafondia granulata

Namuroningxia elegans

Strophodonta

Delatitia

Namuroptera

Strophomena

Delatitia breviceps

Namuroptera minuta

Strophopleura

Delepinea

Namuropyge

Strophostylus

Delepinella

Namurotarbus

Strophostylus (Anematina) minutissimus

Delepinoceras

Namurotarbus roessleri

Strophostylus bivolve

Delepinoceras bressoni

Namurotypus

Strophostylus chesterensis

Deliablastus

Namurotypus sippeli

Strophostylus girtyi

Deliablastus cumberlandensis

Nankinella

Strophostylus nevadensis

Delicaster

Nanochilina

Strophostylus tantillus

Delicaster enigmaticus

Nanopora

Strophostylus wortheni

Delitzschala

Nanopora anglica

Sturgeonospira

Delitzschala bitterfeldensis

Nanopus reidiae

Sturgeonospira tortula

Delocrinus

Nantanella

Stutchburia

Delocrinus dubius

Naoides

Stygetoblatta

Delocrinus missouriensis

Narkema

Stygetoblatta latipennis

Delocrinus vulgatus

Narkema alternatum

Stygne

Deloia

Narkema taeniatum

Stygne roemeri

Delphyodontos

Narkemina angustata

Styliolina

Delphyodontos dacriformes

Narkemina angustiformis

Stylonema trochleatum

Deltaherpeton

Narkemina genuina

Styptobasis aculeata

Deltaherpeton hiemstrae

Narkemina kata

Styracopterus

Deltasperma

Narkeminopsis

Subaljutovella

Deltasperma fouldenense

Narkeminopsis eddi

Subaljutovella bashkirica

Delthyris

Narkeminopsis inversa

Subbryantodus

Deltodus

Narkeminopsis sowiaki

Subclymenia

Deltodus angularis

Narkemulla

Subclymenia ornata

Deltodus concha

Narkemulla sibirica

Subglobosochonetes

Deltodus contortus

Natica

Subitoceras

Deltodus mercurei

Natica littonana

Subitoceras sholakense

Deltodus spatulatus

Naticopsis

Subkargalites

Deltodus sublaevis

Naticopsis (Jedria) plicistria

Subkargalites hargisi

Deltoidospora

Naticopsis (Marmolatella) imoensis

Subkargalites neoparkeri

Deltopecten

Naticopsis (Marmolatella) macgordoni

Subkargalites parkeri

Deltopecten caneyanus

Naticopsis (Naticopsis) buttsi

Sublepidodendron

Deltopecten tahlequahensis

Naticopsis (Naticopsis) clinovata

Sublinoproductus

Deltoptychius

Naticopsis (Naticopsis) consimilis

Sublinoproductus coralineatus

Deltoptychius acutus

Naticopsis (Naticopsis) elongata

Sublobalocrinus

Deltoptychius gibberuius

Naticopsis (Naticopsis) globulina

Subprioniodus

Dembabaspira

Naticopsis (Naticopsis) glomerosa

Subsigillaria

Dembabaspira blegiersi

Naticopsis (Naticopsis) minuta

Subsigillaria bardi

Denaea

Naticopsis (Naticopsis) planispira

Subulites

Denaea fournieri

Naticopsis (Naticopsis) ziczac

Subvestinautilus

Denaea saltsmani

Naticopsis ableptis

Subvestinautilus maritimus

Dendrerpeton

Naticopsis carleyana

Subvestinautilus rector

Dendrerpeton acadianum

Naticopsis depressus

Subvestinautilus znamenskianus

Dendrerpeton confusum

Naticopsis elliptica

Sudeticeras

Dendrerpeton obtusum

Naticopsis genevievensis

Sudeticeras adeps

Dendrerpeton rugosum

Naticopsis globosa

Sudeticeras fornicum

Dendromaia

Naticopsis hallii

Sudeticeras grande

Dendromaia unamakiensis

Naticopsis judithae

Sudeticeras hoeferi

Dendropora

Naticopsis kansuensis

Sudeticeras newtonense

Dendropupa

Naticopsis marginata

Sudeticeras occultornatum

Dendropupa primaeva

Naticopsis marthaae

Sudeticeras ordinatum

Dendropupa vetusta

Naticopsis osbornei

Sudeticeras pusillobatum

Dendrysekos

Naticopsis ovoidea

Sudeticeras turneri

Dendrysekos helogenes

Naticopsis paucivolutus

Sudeticeras varians

Densepustula

Naticopsis phillipsi

Sueroa

Dentalium

Naticopsis remex

Sueroa chubutensis

Dentiannulates

Naticopsis scintilla

Sueroceras

Dentiannulates karapetovi

Naticopsis suturicompta

Sugiyamaella

Dentiblastus

Naticopsis tortum

Sulcatopinna

Dentoceras

Naticopsis virgata

Sulcatospirifer

Dentoceras belemnitiforme

Naticopsis waterlooensis

Sulcella

Derbya robusta

Naticopsis wortheniana

Sulcogirtyoceras

Derbyia

Natiria

Sulcoretepora

Derbyia crassa

Natiria americana

Sumixam

Derbyia cymbula

Natiria lyrata

Sumixam maximus

Derbyia hooserensis

Neaxon

Sunella

Derbyia waageni

Nebenothyris

Sunwapta grandiceps

Derbyia wabaunseensis

Nectoptilus

Sunwaptacrinus

Derbyoides

Nectoptilus mazonus

Surenites

Dermospheroidalis

Necymylacris

Surenites artilectus

Dermospheroidalis irregularis

Necymylacris heros

Surenites crenulatus

Derorhethocrinus

Necymylacris lacoana

Surenites krestovnikovi

Derorhethocrinus elongatus

Necymylacris lacoanum

Surenites laxilectus

Desmacriocrinus

Necymylacris lerichei

Surenites vicinus

Desmatodon

Necymylacris meunieri

Sustaia

Desmatodon hesperis

Necymylacris sulcata

Sustaia impar

Desmatodon hollandi

Neilsonia

Sutcliffia

Desmoinesia

Neilsonia coatesi

Sutcliffia insignis

Desmoinesia muricatina

Neilsonia ganneyica

Sweetina

Desmoinesia nana

Neilsonia insculpta

Sychnoelasma

Desmopteris

Neilsonia roscobiensis

Sychnoelasma hawbankense

Deuteronectanebos

Neilsonia uninodocarinata

Sycopteron

Deuteronectanebos papillorum

Neilsonia welleri

Sycopteron symmetrica

Devonorhineoderma

Nematopora

Sycopteron symmetricum

Devonorhineoderma decussata

Nematopora hibernica

Sylphalula

Diabloroter

Nematotrypa

Sylphalula laliquei

Diabloroter bolti

Nemavermes

Sylvohymen

Diaboloceras

Nemavermes mackeei

Sylvohymen peckae

Diaboloceras involutum

Nemejcopteris

Symballophlebia

Diaboloceras neumeieri

Nemejcopteris feminaeformis

Symballophlebia latipennis

Diacoryphe

Nemistium

Symmorium

Diagonodictya

Neoaganides

Symmorium reniforme

Diaphanoptera

Neoaganides grahamensis

Symplectophyllum

Diaphanoptera munieri

Neoaganides rectilobatus

Synaptoneura

Diaphanoptera vetusta

Neoanchicodium

Synaptoneura champyi

Diaphpterum

Neoarchaediscus

Synarmocrinus

Diaphpterum rasnitsyni

Neoarchaesphaera

Synarmocrinus brachiatus

Diaphragmus

Neochilina

Synarmocrinus iatani

Diaphragmus nivosus

Neochonetes

Synarmoge

Dibunophylloides

Neochonetes (Neochonetes) carboniferus

Synarmoge ferrarii

Dibunophyllum

Neochonetes dominus

Synbathocrinus

Dibunophyllum arachnoforme

Neochonetes granulifer

Synbathocrinus labrus

Dibunophyllum bipartitum

Neochonetes pegnonensis

Synclydagnathus

Dibunophyllum moorei

Neoclisiophyllum

Syncoptoblatta

Dibunophyllum uddeni

Neoclisiophyllum angulatum

Syncoptoblatta thoracica

Dicalamophyllum

Neocycloceras

Synerocrinus

Diceratosaurus

Neocypricardinia

Syngastrioceras

Diceratosaurus brevirostris

Neocypricardinia simplex

Syngastrioceras aktubense

Dichocrinus

Neocypricardinia sinensis

Syngastrioceras clinei

Dichocrinus nola

Neodimorphoceras

Syngastrioceras constrictum

Dichophyllum moorei

Neodimorphoceras armstrongi

Syngastrioceras dronovi

Dichostreblocrinus

Neodimorphoceras lenticulare

Syngastrioceras europaeum

Dichotrypa

Neodimorphoceras oklahomae

Syngastrioceras glaphyritoides

Dichotrypa ordinaria

Neodimorphoceras plummerae

Syngastrioceras globosum

Dicksonites

Neodimorphoceras sverdrupi

Syngastrioceras globulosum

Diconularia

Neodimorphoceras texanum

Syngastrioceras laxumbilicale

Dicranophyllum

Neofouquea

Syngastrioceras oblatum

Dicrenodus

Neofouquea suzanneae

Syngastrioceras orientale

Dicrenodus dentatus

Neogastrioceras arcticum

Syngastrioceras parasupinum

Dicromyocrinus

Neoglaphyrites

Syngastrioceras scotti

Dicromyocrinus medius

Neoglaphyrites bisulcatus

Syngastrioceras sholakensis

Dicromyocrinus optimus

Neoglyphioceras

Syngastrioceras smithwickense

Dicromyocrinus subaplatus

Neoglyphioceras abramovi

Syngastrioceras supinum

Dictyocicada

Neoglyphioceras baccans

Synprioniodina

Dictyocicada antiqua

Neoglyphioceras caneyanum

Syntonoptera

Dictyocicada simplex

Neoglyphioceras crebriliratum

Syntonoptera schucherti

Dictyoclostus

Neoglyphioceras dignitosum

Sypharoptera

Dictyoclostus bellatulus

Neoglyphioceras entogonum

Sypharoptera pneuma

Dictyoclostus gallatinensis

Neoglyphioceras gorbovense

Syringaxon

Dictyoclostus hermosanus

Neoglyphioceras gradatum

Syringodendron

Dictyoclostus paradoxus

Neoglyphioceras latum

Syringopora

Dictyoclostus qiliensis

Neoglyphioceras litvinovichae

Syringospira

Dictyoclostus semireticulatus

Neoglyphioceras sinuosum

Syringothyris

Dictyoclostus simplex

Neoglyphioceras subcirculare

Syringothyris afghanica

Dictyoclostus weiningensis

Neognathodus

Syringothyris curzoni

Dictyomylacris

Neogondolella

Syringothyris lydekkeri

Dictyomylacris insignis

Neogoniatites

Syringothyris subcuspidatoides

Dictyomylacris jacobsi

Neogoniatites delicatus

Syscioblatta

Dictyomylacris multinervis

Neogoniatites milleri

Syscioblatta allegheniensis

Dictyoneura

Neogoniatites ruginosus

Syscioblatta anomala

Dictyoneura higginsii

Neogoniatites worki

Syscioblatta dohrni

Dictyoneura kemperi

Neoicoceras

Syscioblatta minor

Dictyoneura libelluloides

Neoicoceras elkhornense

Syscioblatta misera

Dictyoneura nigra

Neoicoceras martini

Syscioblatta obscura

Dictyoneurella

Neoisorophusella

Syscioblatta pennsylvanica

Dictyoneurella perfecta

Neoisorophusella whitesidei

Syscioblatta steubenvilleana

Dictyoneurula

Neokoninckophyllum

Syscioblatta teberdensis

Dictyoneurula gracilis

Neokoninckophyllum cooperi

Sysciophlebia

Dictyophlois

Neokoninckophyllum dunbari

Sysciophlebia acutipennis

Dictyophlois reticulata

Neolageniocrinus

Sysciophlebia adumbrata

Dictyopteris

Neomultithecopora

Sysciophlebia affinis

Dictyoptilus

Neomylacris

Sysciophlebia angusta

Dictyoptilus peromapteroides

Neomylacris major

Sysciophlebia arcuata

Dictyoptilus renaulti

Neomylacris pulla

Sysciophlebia benedicta

Dictyospongia

Neopalaeaster

Sysciophlebia euglyptica

Dictyotomaria

Neopalaeaster crawfordsvillensis

Sysciophlebia grata

Dictyotomaria carlbransoni

Neopericyclus

Sysciophlebia hybrida

Dictyotomaria depressus

Neopericyclus moldotooensis

Sysciophlebia intermedia

Dictyotomaria meekana

Neoplatyteichum

Sysciophlebia nana

Dictyotomaria nyi

Neoplatyteichum barrealensis

Sysciophlebia obtusa

Dictyotomaria quadrilineata

Neoplatyteichum dickinsi

Sysciophlebia oligoneura

Dictyotomaria quasicapillaria

Neoprincipia

Sysciophlebia picta

Dictyotomaria scitula

Neoprioniodus

Sysciophlebia praepilata

Dictyotomaria wortheni

Neopronorites carboniferus

Sysciophlebia rotundata

Dictyotomaria yochelsoni

Neopronorites prior

Sysciophlebia rubida

Didymaulichnus

Neopteroplax

Sysciophlebia schucherti

Dieconeura

Neopteroplax conemaughensis

Sysciophlebia scudderi

Dieconeura arcuata

Neopteroplax relictus

Sysciophlebia stulta

Dieconeura mazona

Neoraistrickia

Sysciophlebia subtilis

Dieconeurites

Neorthroblattina

Sysciophlebia variegata

Dieconeurites rigidus

Neosandia

Sysciophlebia whitei

Diedrorynchus

Neosimplicius

Syzranella

Diedrorynchus conalatum

Neosimplicius medialis

Syzrania

Diedrorynchus dictyum

Neospirifer

Tabulipora

Dielasma

Neospirifer cameratus

Tabulipora carbonaria

Dielasma bovidens

Neospirifer campbelli

Tabulipora demissa

Dielasma dieneri

Neospirifer dunbari

Tabulipora kansuensis

Dielasmella

Neospirifer fasciger

Tachylasma

Dielasmella larga

Neospirifer goreii

Taeniodictya

Diexodus

Neospirifer incipiens

Taeniopteris

Diexodus debilis

Neospirifer kansasensis

Taeniothaerus

Diichnia

Neospirifer latus

Taeniothaerus iranicus

Diichnia kentuckiensis

Neospirifer licharewi

Taimyrella

Dimegalasma eurekensis

Neospirifer praenuntius

Tainoceras murrayi

Dimegelasma

Neospirifer pristinus

Tainoceras sexlineatum

Dimorphoceras

Neospirifer triplicatus

Tainoceras trautscholdi

Dimorphoceras politum

Neostaffella

Taiophlebia

Dimorphoceras rileyi

Neostaffella ivanovi

Taiophlebia ferreirai

Dimorphoceras worki

Neostaffella larionovae

Taiophlebia niloriclasodae

Dimorphoceratoides

Neostaffella ozawai

Taisyakuphyllum

Dimorphoceratoides adamsi

Neostaffella subquadrata

Taisyakuphyllum nakazawae

Dineuron

Neotornquistia

Taitzehoella

Dineuron pteroides

Neotornquistia aljutovica

Talarocrinus

Dinoblatta

Neozaphrentis

Talpaspongia

Dinoblatta cubitalis

Nepasitoechia

Talpaspongia clavata

Dinoblatta fortis

Nephranops

Tamiobatis

Dinoblatta scudderi

Nephranops dillanus

Tamiobatis springeri

Dinocycloceras

Nephropteris

Tamiobatis vetustus

Dinocycloceras ballianum

Nephropteris obliqua

Tanaoblastus

Dinocycloceras prolixum

Nereidavus

Tanaoblastus roemeri

Dinodus

Neriopteris

Tangshanella

Dinopilio

Neriopteris lanceolata

Tantallognathus

Dinopilio gigas

Nervophyllum

Tantallognathus woodi

Dinopilio parvus

Netschajewia

Tantallosperma

Dinostrophinx

Netsepoye

Tantallosperma setigera

Dinotocrinus

Netsepoye hawesi

Tanypterichthys

Diorugoceras

Neuburgia altaica

Taosia

Diorugoceras egregium

Neuralethopteris

Taosia copei

Diphuicrinus

Neuralethopteris biformis

Taosia missouriensis

Diphuicrinus croneisi

Neuralethopteris pocahontas

Taosia wortheni

Diphuicrinus faustus

Neuralethopteris schlehani

Tapajotia

Diphuicrinus mammifer

Neuralethopteris smithsii

Tapajotia tapajotensis

Diphuicrinus pentanodus

Neurocallipteris planchardii

Tapinotomaria

Diphyphyllum

Neuropteris

Tapinotomaria crassa

Diploblastus

Neuropterocarpus

Tapinotomaria globosa

Diplocaulus

Neurostena

Tapinotomaria spinosa

Diplocaulus salamandroides

Neurostena fayoliana

Taralasma

Diplododella

Newellipecten

Taranshicrinus

Diplodus tenuis

Newsomites

Taranshicrinus vulgaris

Diplognathodus

Nicimitoceras

Tarrasius

Diplolabis

Nicimitoceras trochiforme

Tarrasius problematicus

Diplopora

Nicklesopora

Tawstockia

Diploporaria

Nicklesopora avia

Taxocrinus

Diplopteridium

Nikenautilus

Taxocrinus anomalus

Diplopteridium teilianum

Nikenautilus beleuthensis

Tchirkovaea

Diploradus

Nikenautilus vultur

Tchirkovaea guttata

Diploradus austiumensis

Nikiforovella

Tealliocaris

Diplosphaerina

Nikiforovella novella

Tectamichelina

Diplothmema

Nipponaspis

Tectiretites

Diplothmema gothanica

Nipponaspis miosilus

Tectiretites confinis

Diplovertebron

Nipponostenopora

Tectiretites hodsoni

Diplovertebron punctatum

Nipterocrinus

Tectiretites juvenilatus

Dipriacanthus

Nitosaurus

Tectiretites laxus

Dipriacanthus stokesii

Nitosaurus jacksonorum

Tectiretites malus

Dipterus johnsoni

Nix angulata

Tectiretites posterus

Discina

Nodasperodiscus

Tectoptilus

Discinisca

Nodeuomphalus

Tectoptilus grehanti

Discitoceras

Nodeuomphalus moniliferus

Teguliferina

Discoblatta

Nodeuomphalus peskensis

Tegulispirifer

Discoblatta scholfieldi

Nodeuomphalus pirochiensis

Tegulocrea

Discocystis

Nodopericyclus

Telangiopsis

Discoidella

Nodopericyclus asiaticus

Telangium

Discoidella spinosa

Nodopericyclus circumnodosus

Teleoproductus

Discosiphonella

Nodopericyclus deficerus

Tellinomorpha

Discotarbus

Nodosarchaediscus

Temertassetia

Discotarbus deplanatus

Nodosaria

Temertassetia coarta

Distacodus

Nodosaria radicula

Temertassetia decorata

Distacodus oklahomensis

Nodosinella

Temertassetia secunda

Distasis

Nodosinella glennensis

Temertassetia temertassetensis

Distasis rhipiphora

Nodospira

Temnocheiloides

Ditomopyge

Nodospira krawczynskii

Temnocheiloides acanthicus

Ditomopyge granulata

Nodospira ornata

Temnocheiloides shartymense

Ditomopyge scitula

Nodozyga cylindracea

Temnocheilus

Ditomopyge scitulus

Nodozyga rowlandsi

Temnocheilus coronatiformae

Dixiphopyge

Nodozyga rugifera

Temnocheilus crassus

Dizygocrinus

Noeggerathia

Temnocheilus harneri

Dohmella

Noeggerathiopsis

Temnocorpichnus

Dohmella multistriatus

Noeggerathiopsis hislopi

Temnocorpichnus isaacleai

Dolabra

Nomismoceras

Tentaculites

Dolatocrinus springeri

Nomismoceras germanicum

Tenuacaptor

Dolichopareias

Nomismoceras spirorbis

Tenuacaptor reiszi

Dolichopareias disjectus

Nomismoceras vittigerum

Terebella

Dolichosoma

Nordospira

Terebellina

Dolichosoma emersoni

Nordospira vostokovae

Terebratuloidea triplicata

Dolichosoma longissimum

Nostocites

Termitidiopsis

Dolichosoma scutiferum

Novascoticus

Termitidiopsis rugosum

Dolichosperma

Novascoticus multidens

Terpnocrinus

Dolichosperma sexangulatum

Novlepatella

Terpnocrinus ocoyaensis

Dolorthoceras

Novlepatella kljasmiensis

Terpsicroton

Dolorthoceras caneyanum

Novlepatella nikolskii

Terpsicroton alticeps

Dolorthoceras incisum

Novocrania

Tesnusocaris

Dolorthoceras tenuifilosum

Nuanducosia

Tesnusocaris goldichi

Domatoceras

Nuanducosia sulcata

Testajapyx

Domatoceras collinsvillense

Nucellangium glabrum

Testajapyx thomasi

Domatoceras gigas

Nucha

Tesuquea

Domatoceras hexagonum

Nucleospira

Tetracamera

Domatoceras highlandense

Nucula

Tetracamera subtrigona

Domatoceras inostranzewi

Nuculana

Tetragregnon

Domatoceras latum

Nuculana biangulata

Tetrapleuroceras

Domatoceras magister

Nuculanella

Tetrapleuroceras karpinskyi

Domatoceras mattoonense

Nuculavus

Tetrapleuroceras sakmarense

Domatoceras mosquense

Nuculavus arcuata

Tetraporina horologia

Domatoceras podolskense

Nuculavus levatiformis

Tetraporina sibirica

Domatoceras texanum

Nuculavus menuda

Tetraporinus

Domatoceras tulense

Nuculavus okawensis

Tetrasacculus

Domatoceras wortheni

Nuculites

Tetrastichia

Dombarigloria

Nuculoceras

Tetrataxis

Dombarigloria indivisa

Nuculoceras kazakhstanicum

Tetratylus

Dombarigloria miranda

Nuculoidea corbuliformis

Tetravirga

Dombarites

Nuculopsis beyrichi

Tetravirga imperforata

Dombarites bellornatus

Nuculopsis elongata

Tetravirga perforata

Dombarites carinatus

Nuculopsis girtyi

Teutonophon

Dombarites clemens

Nuculopsis rectangula

Teutonophon konincki

Dombarites falcatoides

Nuculopsis shumardana

Teutonophon tangentialis

Dombarites granofalcatus

Nuculopsis triangularis

Teutonophon umbilicatus

Dombarites linteroides

Nuculopsis wewokana

Textularia

Dombarites liratostriatus

Nummoceras

Thaiaspis

Dombarites liratus

Nummoceras limbatum

Thaiaspis (Thaiaspella) aliger

Dombarites parafalcatoides

Nummulosaurus

Thaiaspis euryrachis

Dombarites paratectus

Nummulosaurus kolbii

Thalattocanthus

Dombarites semiliratus

Nummulostegina

Thalattocanthus consonus

Dombarites tectus

Nunnacrinus

Thallites

Dombarocanites

Nunnaspis

Thaminocrinus

Dombarocanites catillus

Nylanderina bisulcata

Thamniscus

Dombarocanites chancharensis

Nyranerpeton

Thamniscus sevillensis

Donaldina

Nyranerpeton amilneri

Thamnodictya

Donaldina americana

Nyranytarbus

Thamnopora

Donaldina attenuata

Nyranytarbus hofmanni

Thamnopora densa

Donaldina bellilineata

Nyranytarbus longipes

Thamnoporella

Donaldina costatula

Obliquipecten

Thamnoptychia

Donaldina filosa

Obsoletes

Tharama

Donaldina fountainensis

Obsoletes fusiformis

Tharama glauca

Donaldina grantonensis

Obsoletes minutus

Thartharella

Donaldina marigoldensis

Obsoletes obsoletus

Thecaxon

Donaldina nana

Obsoletes timanicus

Thecaxon horni

Donaldina pulchra

Occidens

Thedusia latisulcata

Donaldina pygmaea

Occidens portlocki

Theelia

Donaldina quadrata

Ochetopteron

Theelia hexacneme

Donaldina robusta

Ochetopteron canaliculatum

Thenaropus heterodactylus

Donaldina stevensana

Octagomphus

Thesoneura

Donaldina superclivis

Octagomphus woodi

Thesoneura americana

Donaldina zadoe

Odonterpeton

Thigriffides

Donaldospira

Odonterpeton triangulare

Thigriffides roundyi

Donaldospira nodosa

Odontopteris

Thinocrinus

Donaldospira pertusa

Odontopteris brardii

Tholocrinus

Donaldospira taosensis

Oedischia

Thomasaria

Donaldospira verneuiliana

Oedischia filholi

Thompsonella

Donezella

Oedischia williamsoni

Thompsonella cylindrica

Donispirifer

Oehlertella

Thompsonella rugosa

Donophyllum

Oehlertella stoutella

Thompsonites anarakensis

Donovaniconus

Oestocephalus

Thompsonites stoecklini

Donovaniconus oklahomensis

Oestocephalus amphiuminum

Thoracoceras

Doraclatum

Oestocephalus granulosum

Thoronysis

Doragnathus

Oestocephalus nanum

Thoronysis ingbertensis

Doragnathus woodi

Oestocephalus pectinatus

Thrinacodus incurvus

Dorlodotia

Oestocephalus vicinum

Thrincoceras

Dorsisinus

Oichnus

Thurammina

Dorsoscyphus

Oiratia

Thuramminoides

Dorsoscyphus johnsoni

Oiratia valida

Thuroholia

Doryblatta

Oklahomacrinus

Thuroholia cribriformis

Doryblatta longipennis

Olethroblatta

Thuroholia croneisi

Dorycordaites palmaeformis

Olethroblatta americana

Thuroholia floydensis

Dorycrinus

Olethroblatta lineolata

Thuroholia irregularis

Dowhatania

Oliganisus

Thuroholia spicatus

Draffania

Oligocarpia

Thuroholia wanlessi

Draffania biloba

Oligocarpia gutbieri

Thylacocrinus clarkei

Dragonympha

Oligothyrina alleni

Thysanophyllum

Dragonympha srokai

Oligotypus

Thysanophyllum astraeiforme

Drepanellina

Oligotypus huangheensis

Tianshanopecten

Drewerelasma

Oligotypus makowskii

Tianshanopecten carboniferus

Dromastacheoides

Oligotypus tuscaloosae

Tietea

Dromopus aduncus

Olinka

Tietea singularis

Dromopus woodworthi

Olinka modica

Timania

Dronovicrinus

Omalia

Timeischytes

Dronovicrinus notabilis

Omalia macroptera

Tingia

Druzeticia

Omaliella

Tiramnia

Druzeticia decens

Omaliella polonica

Titanaria

Drybrookia

Omaliella ramosa

Titanodictya

Drybrookia cubitalis

Omiphyllum

Titanodictya jucunda

Duartea

Omphalotis

Titanophasma

Duerleyoceras

Omphalotrochus

Titanophasma fayoli

Dumfregia

Omphalotrochus canaliculatus

Titanoptera maculata

Dumfregia huxleyi

Omphalotrochus kalitvaensis

Tivertonia

Dunbarella

Onchiodon langenhani

Tivertonia jachalensis

Dunbarella knighti

Onchiodon manebachensis

Tizraia

Dunbarella striata

Onchus

Tizraia berkhlii

Dunbarinella clara

Oniscina

Tococladus

Dunbarinella kauffmani

Oniscina ornata

Todeopsis

Dunbarinella narjanmarica

Onychaster

Todeopsis primaeva

Dunbarinella rothi

Onychaster flexilis

Tolypammina

Dunbarites

Onychocrinus

Tolypammina solontsovica

Dunbarites boardmani

Onychodus

Tomasina

Dunbarites rectilateralis

Onychoselache

Tomiodendron

Dunbarites wewokensis

Ootarbus

Tomiproductus

Duncanopora

Ootarbus ovatus

Tomoceras gilliana

Dunkleosteus

Ootarbus pulcher

Torleyoceras oxyacantha

Dunkleosteus raveri

Ophiaulax

Tornquistia

Dunkleosteus terrelli

Ophiderpeton

Tornquistia orthogona

Duplocarinia

Ophiderpeton amphiuminum

Tornquistia subpolita

Durhamina primitiva

Ophiderpeton brownriggi

Tornquistia transversalis

Dutkevitchia ilinskensis

Ophiderpeton kirktonense

Torynifer

Dutkevitchia miniouensis

Ophiderpeton swisshelmense

Torynifer pseudolineatus

Dutkevitchia oblonga

Ophilyroceras

Tournayella

Dutkevitchites alpinus

Ophilyroceras tersum

Tournayellina

Dutoitea

Opiliotarbus

Toxeumorphora

Dutoitia pulchra

Opiliotarbus elongatus

Toxeumorphora dombarense

Dvinella

Opsiomylacris

Trachidomia

Dybowskiella

Opsiomylacris (Opsiomylacris) densistriata

Trachydoma variata

Dyrnwynia

Opsiomylacris densistriata

Trachydomia

Dyrnwynia conollyi

Opsiomylacris thevenini

Trachydomia nodosum

Dyschrestia

Oracanthus milleri

Trachydomia oweni

Dyscritella

Orbicoelia

Trachydomia raymondi

Dyscritus

Orbicoelia tschernyschewi

Trachydomia turbonitella

Dyscritus vetustus

Orbicula affinis

Trachydomia verrucosa

Dysmenes

Orbiculoidea

Trachydomia wheeleri

Dysmenes illustris

Orbiculoidea capuliformis

Trachystegos

Dytiscomorphus

Orbiculoidea damanensis

Trachystegos megalodon

Dytiscomorphus larvalis

Orbiculoidea excentrica

Tranodis

Dzhaprakoceras

Orbiculoidea interlineata

Tranodis castrensis

Dzhaprakoceras amplum

Orbiculoidea keokuk

Tremanotus

Dzhaprakoceras biconvexum

Orbiculoidea missouriensis

Tremanotus angustata

Dzhaprakoceras punctum

Orbiculoidea prietana

Trepeilopsis

Dzhaprakoceras sonkulica

Orbiculoidea varsoviensis

Trepospira

Dzhaprakoceras tianshanicus

Orbiculoidea wyomingensis

Trepospira (Angyomphalus) desultoria

Dzhaprakoceras vergum

Orbinaria

Trepospira (Angyomphalus) discus

Earlandia

Orbinaria pyxidata

Trepospira (Angyomphalus) regularis

Earlandinita

Orbipora

Trepospira (Angyomphalus) subplana

Echigophyllum

Orbitremites

Trepospira (Trepospira) minima

Echinaria

Oriocrassatella

Trepospira depressa

Echinaria moorei

Oriocrassatella compressa

Trepospira discoidalis

Echinauris

Oriocrassatella piauiensis

Trepospira illinoisensis

Echinerpeton

Orionastraea

Trepospira sphaerulata

Echinerpeton intermedium

Ornithoprion

Trepsipleura

Echinoconchella

Ornithoprion hertwigi

Trepsipleura chordanodosa

Echinoconchus

Orobias

Trepsipleura nodosa

Echinoconchus alternatus

Orobias ciscoensis

Treptichnus

Echinoconchus angustus

Orodus

Treptichnus apsorum

Echinoconchus biseriatus

Orodus greggi

Treptichnus bifurcus

Echinoconchus elegans

Orodus intermedius

Trettinoceras

Echinoconchus punctatus

Orodus micropterygius

Trettinoceras ellesmerensis

Echinoconchus zapoteco

Orodus moniliformis

Triaenosphaera

Economolopsis

Orodus ramosus

Triaenosphaera bareillensis

Economolopsis anodontoides

Orophocrinus

Triaenosphaera hebes

Economolopsis gordoni

Orophocrinus celticus

Triaenosphaera sicarius

Ectochoristites

Orophocrinus orbignyanus

Triangulotarbus

Ectochoristites inflatus

Orophocrinus praelongus

Triangulotarbus terrehautensis

Ectodemites

Orophocrinus verus

Triassocythere

Ectogrammysia

Orthacanthus

Triassocythere prisca

Ectogrammysia crassatis

Orthacanthus compressus

Tribolbina

Ectogrammysia hannibalensis

Orthacanthus donnelljohnsi

Tribolbina carnegiei

Ectogrammysia inaffecta

Orthacanthus gibbosus

Triboloceras

Ectogrammysia prolata

Orthis

Triboloceras kazakhstanense

Ectomaria

Orthis spinigera

Triceracrinus

Edaphoceras

Orthobairdia

Triceratina

Edaphoceras hesperis

Orthobairdia cestriensis

Trichomanites

Edaphosaurus colohistion

Orthoceras

Tricornina

Eddya sullivanensis

Orthocosta lithomantidoides

Trigonocarpon

Edestus

Orthocosta microscopa

Trigonocarpus ampulliforme

Edestus crenulatus

Orthocyclus

Trigonodus

Edestus heinrichi

Orthocypris

Trigonoglossa

Edestus heinrichii

Orthogonophora

Trigonotarbus

Edestus karpinskii

Orthogonophora distincta

Trigonotarbus arnoldi

Edestus minor

Orthomyalina

Trigonotarbus carbonarius

Edestus minusculus

Orthomylacris

Trigonotarbus johnsoni

Edestus mirus

Orthomylacris alutacea

Trigonotreta

Edestus newtoni

Orthomylacris analis

Trihecaton

Edestus serratus

Orthomylacris berryi

Trihecaton howardinus

Edestus triserratus

Orthomylacris contorta

Triimitoceras

Edestus vorax

Orthomylacris cordiformis

Triimitoceras epiwocklumeriforme

Edmondia

Orthomylacris delicatula

Triimitoceras tantulum

Edmondia aspenwallensis

Orthomylacris franklini

Triletes

Edmondia aspinwallensis

Orthomylacris gurleyi

Trilonche

Edmondia crassa

Orthomylacris hastata

Trilophomylacris

Edmondia equilateralis

Orthomylacris heeri

Trilophomylacris cabassuti

Edmondia glabra

Orthomylacris mansfieldi

Trilophomylacris virelyi

Edmondia nebrascensis

Orthomylacris mathieui

Trimerophyton robustius

Edmondia nodulifera

Orthomylacris northi

Triodus

Edmondia ovata

Orthomylacris pauperata

Triodus elpia

Edmondia radiata

Orthomylacris pennsylvaniae

Triops ornatus

Edmondia rudis

Orthomylacris pittstoniana

Tripartites

Edmondia subtruncata

Orthomylacris pluteus

Triphyllopteris

Edmondia sulcata

Orthomylacris recta

Triplophyllum

Edmondia unioniformis

Orthomylacris rigida

Triplosoba

Edmooroceras

Orthonema

Triplosoba pulchella

Edon

Orthonema amissidecoris

Tripoblastus

Edon oblonga

Orthonema ascensus

Tripoblastus plicatus

Eileenella

Orthonema cochleoides

Tripteroceroides

Eileticus

Orthonema cortum

Trisaurus lachrymus

Eileticus aequalis

Orthonema frequens

Tristichia

Eileticus anthracinus

Orthonema hulusitaiensis

Tristichia ovensi

Eirlysia

Orthonema inornatum

Tristychius

Eirlysia ceramicorum

Orthonema laluzense

Tristychius arcuatus

Eirlysia reticulata

Orthonema marvinwelleri

Triticites

Eirmocrinus

Orthonema nebrascense

Triticites absurdus

Eirmocrinus brewi

Orthonema salteri

Triticites adamas

Eiselia

Orthonema semiornatum

Triticites beedei

Ekvasophyllum

Orthonema silinae

Triticites bilinguis

Ekvasophyllum cascadense

Orthonema simplex

Triticites borregoensis

Elaphroblatta intermedia

Orthonema subtaeniatum

Triticites brevis

Elasmonema

Orthonema telescopiforme

Triticites buglensis

Elassonia

Orthonychia

Triticites bungerensis

Elcabrosaurus

Orthonychia chesterense

Triticites canyonensis

Elcabrosaurus baldwini

Orthonychia egorovi

Triticites circulus

Eldeceeon

Orthonychia herzeri

Triticites confertus

Eldeceeon rolfei

Orthonychia infabricatus

Triticites convexus

Eleutherokomma

Orthonychia jeffersonensis

Triticites creekensis

Elfridia

Orthonychia parva

Triticites cullomensis

Elfridia bulbidens

Orthonychia rotunda

Triticites expressus

Eliasopora

Orthonychia sciotoensis

Triticites follis

Elibatocrinus

Orthonychia spinigerum

Triticites fusinus

Elibatocrinus elegans

Orthonychia vomerium

Triticites gracilis

Elinoria

Orthonychia waverlyensis

Triticites guvenci

Elinoria carnica

Orthopora

Triticites hermanni

Elivina

Orthotarbus

Triticites hobblensis

Elivina tibetana

Orthotarbus longipes

Triticites humilis

Elkoceras

Orthotarbus minutus

Triticites immutabilis

Elkoceras volborthi

Orthotarbus nyranensis

Triticites inflatus

Ellipsella

Orthotarbus robustus

Triticites invenustus

Ellipsella distenta

Orthotetes

Triticites jacksboroensis

Elliptechinus

Orthotetes kaskaskiensis

Triticites jimmacki

Ellipticoblastus

Orthotetes keokuk

Triticites karlensis

Ellipticoblastus ellipticus

Orthotetes occidentalis

Triticites kellyensis

Elliptophillipsia

Orthotetes plana

Triticites kodzhaugulicus

Elonichthys

Orthothetina

Triticites komansuensis

Elonichthys bucklandi

Orthothetina leei

Triticites kottlowskii

Elonichthys disjunctus

Orthotichia

Triticites kuibyshevi

Elonichthys peltigerus

Orthotichia morganiana

Triticites legatum

Elonichthys perpennatus

Orthotichia nawtawaketensis

Triticites levis

Elonichthys pulcherrimus

Orthovertella

Triticites lucasi

Elonichthys robisoni

Orthriosiphon

Triticites marathonensis

Elonichthys serratus

Orthriosiphonoides

Triticites meeki

Elonichthys striatus

Ortonella furcata

Triticites mogutovensis

Emiliodonta

Ortonia

Triticites moorei

Emilites

Orulgania

Triticites mulleri

Emilites bennisoni

Oryctomastax

Triticites multiseptatus

Emilites brownwoodi

Oryctomastax duboisi

Triticites mutabilis

Emilites incertus

Osagia

Triticites myersi

Emilites plummeri

Osmanoceras

Triticites nealensis

Emmonsia

Osmanoceras undulatum

Triticites needhami

Emphanisporites

Osmolskia

Triticites nitidus

Emphereaster

Osnogerarus

Triticites oblisus

Emphereaster missouriensis

Osnogerarus trecwithiensis

Triticites occidentalis

Emphyloptera

Ossinodus

Triticites oezbekensis

Emphyloptera lecrivaini

Ossinodus pueri

Triticites ornatus

Empodesma

Ossirarus

Triticites parameeki

Empodesma sinensis

Ossirarus kierani

Triticites parvulus

Emuhablastus

Osteoplax

Triticites pointensis

Emuhablastus planus

Osteoplax erosus

Triticites polinae

Enchostoma

Ostrava

Triticites postsybilae

Encrinaster pontis

Ostrava nigra

Triticites procerulus

Encrinites ramosus

Ottonosia

Triticites proprius

Endelocrinus

Ottweileria

Triticites quasiarcticus

Endelocrinus matheri

Ottweileria schmidti

Triticites rossicus

Endelocrinus rotundus

Ouaoufilalites

Triticites sacramentoensis

Endocostapecten

Ouaoufilalites creber

Triticites schencki

Endocostapecten inequicostata

Ouaoufilalites ouaoufilalensis

Triticites secalicus

Endoiasmus

Oulodus

Triticites southensis

Endoiasmus reticulatus

Oulodus walliseri

Triticites springvillensis

Endolobus

Ovatia

Triticites sybilae

Endolobus clorensis

Overtonia

Triticites tractus

Endolobus litvinovichae

Overtonia fimbriata

Triticites tumentis

Endolobus spectabilis

Ovornina buekkensis

Triticites turkestanensis

Endoplegma

Owadpteron

Triticites turpis

Endoplegma calathus

Owadpteron dareki

Triticites tyrrelli

Endostaffella

Owenoceras

Triticites umbus

Endotaxis

Owenoceras bellilineatum

Triticites usitatus

Endotaxis brazhnikovae

Oxinoxis

Triticites ventricosus

Endothyra

Oxroadia

Triticites viribus

Endothyra bowmani

Oxroadia gracilis

Triticites wellsi

Endothyranella

Oxynoblatta

Triticites wyomingensis

Endothyranopsis

Oxynoblatta alutacea

Triticites yvani

Endoxylon

Oxynoblatta americana

Tritonoceras

Endoxylon zonatum

Oxynoblatta triangularis

Trizonoceras

Eneriblatta

Oxynoblatta vicina

Trizonoceras medioximum

Eneriblatta elegantissima

Oxyprora

Trochilioceras

Eneriblatta gallica

Oxyprora carinatum

Trochilioceras tenuosum

Eneriblatta insignis

Oxyprora digitatum

Trochonema

Eneriblatta lusitanica

Oxyprora mesialis

Trochus

Eneriblatta valongensis

Oxyprora missouriensis

Trophocrinus

Ensiferites brandenburgi

Oxyprora parrishi

Tropidocaris

Entactinia tortispina

Oxyprora prattenanum

Tropidocyclus

Entactinia vulgaris

Oxyprora sayrei

Tropidostropha

Entactinosphaera

Oxytomoidea

Tropidostropha compta

Entactinosphaera esostrongyla

Ozakiphyllum

Tropidostropha punctata

Entactinosphaera palimbola

Ozarcus

Truemania

Entalis

Ozarcus mapesae

Truemania multiplicata

Entalis ornata

Ozarkodina

Trypetesa

Enteletes

Ozawainella

Trypetesa caveata

Enteletes hemiplicata

Ozawainella almasniensis

Trypetesa lampas

Entogonites

Ozawainella angulata

Tryplasma

Entogonites acus

Ozawainella inflata

Tschussovskenia

Entogonites borealis

Ozawainella mosquensis

Tshunicola

Entogonites bucheri

Ozawainella ovata

Tshunicola carbonarius

Entogonites burbankensis

Ozawainella rhomboidalis

Tshunoptera

Entogonites grimmeri

Ozawainella tingi

Tshunoptera ampla

Entogonites saharensis

Ozawainella vozhgalica

Tuberculatosporites

Entogonites serbicus

Pachyblatta

Tuberitina

Entogonites tetragonus

Pachyblatta convexa

Tubicaulis

Entomoconchus

Pachyblatta radiata

Tubiphytes

Enygmophyllum

Pachylocrinus

Tubispirodiscus

Eoasianites

Pachylyroceras

Tubulelloides

Eoasianites bashkiriensis

Pachylyroceras cloudi

Tubulikirkbya

Eoasianites concinnus

Pachylyroceras newsomi

Tubulikirkbya beckeri

Eoasianites eximius

Pachymyonia

Tubulikirkbya visnyoensis

Eoasianites kajraklensis

Pachypora

Tubulipora

Eoasianites postconcinnus

Pachypteria

Tuditanus

Eoasianites smithwickensis

Pachytesta

Tuditanus punctulatus

Eobaphetes

Pachytesta vera

Tulcumbella

Eobaphetes kansensis

Pachytylopsis

Tulcumbella microstriata

Eoblatta

Pachytylopsis deriodoti

Tullimonstrum

Eoblatta robusta

Pachytylopsis melas

Tumulites

Eoblatta zeilleri

Pachytylopsis persenairei

Tumulites eurinus

Eocanites

Pachytylopsis stainieri

Tumulites varians

Eocanites dkorni

Paecilodus

Tumulotriticites

Eocanites rtbeckeri

Paecilodus gibbosus

Tumulotriticites tumidus

Eocanites simplex

Paecilodus jonesii

Tupacsala

Eocasea

Paeckelmanella

Tupacsala niunamenos

Eocasea martini

Paeckelmanella expansa

Tupelosia

Eocaudina

Paffrathopsis

Tupelosia paganzoensis

Eocaudina columcanthus

Paffrathopsis nana

Tupus

Eocaudina gutschicki

Paganzophlebia

Tupus orientalis

Eocaudina marginata

Paganzophlebia polyclada

Turbinatocanina

Eocaudina mccormacki

Paimbia

Turbinatocaninia

Eocaudina septaforaminalis

Paimbia fenestrata

Turbinella

Eocaudina subhexagona

Paimbia ultima

Turbinilopsis

Eochoristites

Paladin

Turbinilopsis hoeninghausianus

Eoconulus

Paladin (Kaskia) rarus

Turbinilopsis inconspicuus

Eocteniza

Paladin helmsensis

Turbinopsis

Eocteniza silvicola

Paladin morrowensis

Turbo

Eocyphinium

Paladin mucronatus

Turbonellina

Eoendothyranopsis

Paladin opisthops

Turbonellina lepida

Eoforschia

Paladin veeravurusi

Turbonellina pulchra

Eofusulina

Palaeacis

Turbonitella

Eoglyphioceras

Palaeacis carinata

Turbonitella biserialis

Eoglyphioceras ergchebbiense

Palaeacis cuneiformis

Turbonitella semisulcatus

Eogonioloboceras

Palaeacmaea

Turbophyllum

Eogonioloboceras discoides

Palaechinus

Turnacipora

Eoherpeton

Palaeoalvania

Turnbullia

Eoherpeton watsoni

Palaeoalvania talenti

Turnbullia priscillae

Eojulus

Palaeoaplysina

Turneropterum

Eojulus fragilis

Palaeoaplysina laminaeformis

Turneropterum turneri

Eolasiodiscus

Palaeocapulus

Turrilepas

Eolissochonetes

Palaeocapulus acutirostre

Turrispiroides

Eolissochonetes bilobatus

Palaeocapulus equilateralis

Turritellella

Eolissochonetes morsei

Palaeocapulus morsei

Tuvichapteris

Eolissochonetes pseudoliratus

Palaeocapulus piso

Tychonia

Eolycosa

Palaeocapulus trigonus

Tychonia glabrata

Eolycosa lorenzi

Palaeocapulus undata

Tychonia omaliana

Eomarginifera

Palaeocarria

Tylonautilus

Eomarginifera longispinus

Palaeocarria ornata

Tylonautilus gratiosus

Eomarginifera orientalis

Palaeocaudina

Tylonautilus mergus

Eomarginifera schartimiensis

Palaeocaudina kansasensis

Tylothyris

Eomarginifera sinensis

Palaeoceras

Tylothyris brevaurita

Eomarginifera sinosa

Palaeochoristites

Tylothyris minima

Eomarginiferina

Palaeocoryne

Tylothyris missouriensis

Eomartiniopsis

Palaeodictyopteron anglicanum

Tylothyris multicostatus

Eomartiniopsis girtyi

Palaeodictyopteron mazonum

Tylothyris pauciplicata

Eomartiniopsis helenae

Palaeoedischia

Tympanoceras

Eonomismoceras

Palaeoedischia boulei

Tympanoceras porrectum

Eopanorpella

Palaeoglossa

Tympanoceras rugatum

Eopanorpella ernsti

Palaeoherpeton

Tympanoceras trisulcatum

Eoparafusulina olgae

Palaeoherpeton decorum

Tynecotarbus

Eoparafusulina praeferganensis

Palaeolima

Tynecotarbus tichaveki

Eoparalegoceras

Palaeolima antinaoensis

Tyrieocrinus

Eoparalegoceras inflatum

Palaeolima laticostata

Tytthospilaptera

Eoparastaffella

Palaeolima retifera

Tytthospilaptera wangae

Eoparastaffella simplex

Palaeolima simplex

Ubites

Eopholcus

Palaeolithocyclia

Ubites divnae

Eopholcus pedatus

Palaeomantis

Ubites filipovici

Eophrynus

Palaeomantis hangardi

Ubites novaki

Eophrynus prestvicii

Palaeomantis ostertali

Uddenites

Eophrynus udus

Palaeomastax

Uddenites harlani

Eoplatyzona

Palaeomastax carbonis

Uddenites orenburgensis

Eoprodromites

Palaeomolgophis

Uddenites postsakmarensis

Eoptychia

Palaeomolgophis scoticus

Uddenites sakmarensis

Eoptychia abbreviata

Palaeomyces

Uddenites schucherti

Eoptychia carinimaxima

Palaeoneilo

Uddenites serratus

Eoptychia intermittens

Palaeoneilo acarinata

Uddenites tuberculatus

Eoschistoceras

Palaeoneilo bownockeri

Uddenoceras

Eoschistoceras strawnense

Palaeoneilo guangdongensis

Ufimia

Eoschubertella

Palaeoneilo oweni

Ulocrinus

Eoschubertella obscura

Palaeoneilo sera

Ulocrinus fistulosus

Eoschubertella rotundaformis

Palaeonitella

Ulodendron majus

Eoschubertella subkingi

Palaeonubecularia

Ulrichicrinus

Eoscopus

Palaeonucula

Ulrichidiscus

Eoscopus lockardi

Palaeonucula lunulata

Ulrichidiscus forbesi

Eoserpeton

Palaeonucula subrotundata

Umbetoceras

Eoserpeton tenuicorne

Palaeopalaemon

Umbetoceras aravanense

Eoshumardites

Palaeopalara

Umbetoceras karsaklense

Eoshumardites popowi

Palaeopalara gracilis

Umbetoceras kuruilicum

Eosigmoilina

Palaeophycus

Umbetoceras uskalykense

Eosperma

Palaeophycus tubularis

Uncinella

Eosperma oxroadense

Palaeopteridium

Uncinulina

Eostaffella

Palaeoptilus

Undaria erminea

Eostaffella acuta

Palaeoptilus brullei

Undichna

Eostaffella donbassica

Palaeosauropus primaevus

Undichna brittanica

Eostaffella lepida

Palaeoscenidium

Undichna unisulca

Eostaffella mosquensis

Palaeoscenidium cladophorum

Undulomya

Eostaffella pinguis

Palaeosmilia multiseptata

Undulomya singaporensis

Eostaffella postmosquensis

Palaeosmilia murchisoni

Ungdarella

Eotaphrus

Palaeosolen

Ungdarella uralica

Eotextularia

Palaeosoma giganteum

Ungoneurites

Eothalassoceras

Palaeosoma robustum

Ungoneurites paucinervis

Eotrochus

Palaeospiroplectammina

Unispirifer

Eotrochus marigoldensis

Palaeostachya elongata

Unklesbayella

Eotrochus tenuimarginatus

Palaeostaffella

Unklesbayella geinitzi

Eotuberitina

Palaeostylus

Uperocrinus

Eovelebitella

Palaeostylus (Palaeostylus) marvinwelleri

Uralinia

Eowaeringella

Palaeostylus (Pseudozygopleura) belli

Uralinia multiplex

Eowaeringella aaroni

Palaeostylus (Pseudozygopleura) eucharis

Uralodiscus

Eowaeringella fusiformis

Palaeostylus (Pseudozygopleura) obtusicacuminis

Uraloporella

Eowaeringella stricta

Palaeostylus (Pseudozygopleura) terebrus

Uraloproductus bilobatus

Eowellerites

Palaeostylus acuminatus

Uralopronorites

Eowellerites discoidalis

Palaeostylus cylindrata

Uralopronorites mirus

Eowellerites moorei

Palaeotextularia

Uralyroceras

Eperisocrinus

Palaeothele

Uralyroceras angustum

Eperisocrinus missouriensis

Palaeothele montceauensis

Uralyroceras arquatum

Ephippioceras

Palaeotherates

Uralyroceras consequens

Ephippioceras clitellarium

Palaeotherates pennsylvanicus

Uralyroceras constrictum

Ephippioceras ferratum

Palaeoweichselia

Ureocrinus

Ephippioceras moinellae

Palaeoweichselia defrancei

Urobairdia

Ephippioceras sphaericum

Palaeozyga roscobiensis

Urocordylus

Ephippioceras verneuili

Palaeozyga sulculosa

Urocordylus angustatus

Epiacrocrinus

Palaeozygopleura

Urocordylus wandesfordii

Epicanites

Palaeozygopleura benniana

Uronectes

Epicanites hamianensis

Palaeozygopleura delphicola

Utahacanthus

Epideigma

Palaeozygopleura difficile

Utahacanthus guntheri

Epideigma elegans

Palaeozygopleura lamellosa

Utaherpeton

Epidomatoceras

Palaeozygopleura obesa

Utaherpeton franklini

Epidomatoceras aemulum

Palaeozygopleura orlejensis

Utharocrinus

Epidomatoceras doohylense

Palaeozygopleura parva

Utharocrinus pentanodus

Epidomatoceras vivum

Palaeozygopleura robroystonensis

Uvacoelia

Epimastopora

Palaeozygopleura scalaroides

Uvacoelia schellwieni

Epimastoporella

Palaeozygopleura venusta

Uyguroblastus

Epistacheoides

Palaeozygopleura welleri

Vacunella

Epistroboceras

Palaeozygopleura wortheni

Valdeania

Epistroboceras chancharense

Palaiotaptus

Valdeania medeirosi

Epistroboceras gracile

Palaiotaptus mazonus

Valhallites

Epistroboceras lesliense

Palapteris

Valhallites boreus

Epistroboceras mangeri

Palapteris stenodictyus

Valhallites kashirtzevi

Epistroboceras pitkinense

Palaranea

Valhallites ornatus

Epistroboceras texanum

Palaranea borassifoliae

Valhallites sakhaensis

Epitethe

Palastraea

Valhallites tuberculatus

Epitethe meunieri

Palastraea planiuscula

Valhallites westforkensis

Equisetum

Palastraea weiningensis

Vallites

Erasipterella

Palenarthrus

Vallites henkei

Erasipterella jini

Palenarthrus impressus

Vallites schmidti

Erasipterella piesbergensis

Paleochiridota

Valloisella

Erasipteroides

Paleochiridota plummerae

Valloisella lievinensis

Erasipteroides valentini

Paleochiridota radiata

Valmeyeraphycus

Erasipteron

Paleochiridota terquemi

Valmeyeraphycus jerseyensis

Erasipteron larischi

Paleochiridota waylandensis

Valmeyerodendron

Eratocrinus

Paleoconus

Valmeyerodendron triangularifolium

Eremopteris

Paleoconus bakeri

Valvulinella

Eremopteris artemisiaefolia

Paleohyperamum

Vandelooaster

Eretmocrinus

Paleohyperamum pottsvillensis

Vandelooaster plicatilis

Eridmatus

Paleoischnoptera

Vebericochlis

Eridmatus texanus

Paleoischnoptera diaphanes

Vebericochlis arguta

Eridopora

Paleolima triplistriata

Vediproductus formos

Eridotrypella

Paleolimulus

Velisoptera

Eridotrypella carbonaria

Paleolimulus longispinus

Velisoptera taschi

Erismacanthus

Paleothyris

Velizphlebia

Erismacanthus barbatus

Paleothyris acadiana

Velizphlebia cruzi

Erismacanthus jonesii

Paleschara

Ventastega

Erismacanthus major

Paleuthygramma

Ventastega curonica

Erisocrinus

Paleuthygramma sottyi

Venustodus

Erisocrinus typus

Paleyoldia

Venustodus leidyi

Erisocrinus wapanucka

Paleyoldia angustia

Verancoceras

Eristophyton

Paleyoldia bruta

Verancoceras admirabile

Eristophyton beinertianum

Paleyoldia glabra

Verancoceras ciceroides

Erlangeracrocrinus

Paleyoldia levistriata

Verancoceras tabidum

Erpetonyx

Palmatopteris

Verbeekiella

Erpetonyx arsenaultorum

Palmatopteris furcata

Verchojania

Erpetosaurus

Palmerocrinus

Verella fusiformis

Erpetosaurus radiatus

Palmerocrinus kesslerensis

Verkhotomia

Eryops

Palmerocrinus profundus

Verkhotomia plenoides

Eskdalia

Panenka

Verkhotomia tukulaensis

Eskdalia minuta

Panenka porteri

Vermiporella

Espielia

Panibole

Verneuilites

Espielia columellata

Paolia

Verneuilites keyserlingi

Espielia tauridensis

Paolia vetusta

Verneuilites murchisoni

Estheria

Paoliola

Verneuilites progressus

Estheria limbata

Paoliola gurleyi

Verneuilites pygmaeus

Estheria rimosa

Papilionichthys

Verneuilites verneuili

Estrellaspongia

Papilionichthys stahlae

Vernooijia

Estrellaspongia irregulara

Paprothites

Vernooijia harlemensis

Etapteris

Paraarchaediscus

Vernooijia sassoonae

Etapteris tubicaulis

Paraberounella

Verrucosisporites

Ethelocrinus

Paraboltonia

Verrucosisporites minutus

Ethelocrinus papulosus

Paraboltonia macroptera

Vertigocrinus

Etheridgella

Parabrodia

Vertigocrinus parilis

Etheridgella biconvexa

Parabrodia carbonaria

Veryhachium

Etheridgella porosa

Paracarruthersella

Vesiculophyllum

Etheridgina

Paracarruthersella prava

Vestinautilus

Etheripecten

Paracatillocrinus

Vidrioceras

Etheripecten trichotomus

Parachaetetes

Vidrioceras borissiaki

Etoblattina

Parachaetetes johnsoni

Vidrioceras conlini

Etoblattina gerablattini

Parachoristites

Vidrioceras irregulare

Etoblattina inclusa

Parachoristites carus

Vidrioceras uddeni

Etoblattina incurvata

Parachoristites volongaensis

Villozona

Etoblattina mensa

Paraconularia

Villozona villosa

Etoblattina primaeva

Paraconularia acuminata

Vinella

Etoblattina scudderi

Paraconularia nefarius

Virgaspongia

Etotabla

Paraconularia pulcheria

Virgaspongia ichnata

Etotabla gillae

Paraconularia sueroi

Viseidiscus

Eubleptus

Paraconularia tepuelensis

Vissariotaxis

Eubleptus danielsi

Paracosmetocrinus

Voehringerites

Eubleptus maculosus

Paracravenoceras

Vogelgnathus

Eubrodia

Paracravenoceras barnettense

Vogelgnathus campbelli

Eubrodia dabasinskasi

Paracravenoceras ozarkense

Voiseyella

Eucaenus

Paracridites

Volnovakhipora

Eucaenus ovalis

Paracridites formosus

Volnovakhipora insignis

Eucaenus pusillus

Paracromyocrinus

Volsellina

Eucaenus rotundatus

Paracromyocrinus oklahomensis

Volsellina equatorialis

Euchondria

Paracyclas

Volsellina subelliptica

Euchondria bilstonensis

Paracyclas dubia

Vorticina anneae

Euchondria levicula

Paradelocrinus

Vorticina cyrtolites

Euchondria losseni

Paradichocrinus

Vorticina vortex

Euchondria neglecta

Paradimorphoceras

Vratislavia

Euchondria ohioensis

Paradimorphoceras orientale

Vratislavia silesiaca

Euchondria pellucida

Paradimorphoceras strictum

Vrezalduba

Euchondria sabattinii

Paradimorphoceras varians

Vrezalduba nervosa

Euchondria wagneri

Paraduplophyllum

Waagenella claxtonensis

Euchondria weanensis

Paraduplophyllum (Paraduplophyllum) oppositum

Waagenella crassus

Euchoroptera

Paraeofusulina

Waagenella dumonti

Euchoroptera longipennis

Paraepimastopora

Waagenella meeki

Eucladocrinus

Paragassizocrinus

Waagenella microstriata

Eucochlis

Paragassizocrinus kendrickensis

Waagenella muensteri

Eucochlis australis

Paragattendorfia

Waagenella pinguis

Eucochlis depressa

Paragattendorfia aboussalamae

Waagenella rectistriatus

Eucochlis perminuta

Paraglobusia

Waagenella rownhamensis

Eucochlis umbiliparva

Paragoniozona

Waagenella sowerbyi

Euconcordia

Paragoniozona granulostriata

Waagenella vespertinus

Euconcordia cunninghami

Paragoniozona multilirata

Waagenella yuani

Euconodoma

Paragoniozona nodolirata

Waagenites

Euconodoma gavinae

Parahaplophlebium

Waagenites trapezoidalis

Euconodoma laschmensis

Parahaplophlebium longipenne

Waagenoconcha

Euconospira

Paraheritschioides

Waagenoconcha abnakensis

Euconospira conica

Parahomalophlebia

Waagenoconcha humboldti

Euconospira conula

Parahomalophlebia courtini

Wachsmuthicrinus

Euconospira desereti

Parahomoceras

Wadiglossa

Euconospira disjuncta

Parahomoceras asperum

Walchia

Euconospira elegantula

Parajuresania

Walchiostrobus

Euconospira hermosana

Parajuresania nebrascensis

Waltzispora

Euconospira missouriensis

Paralegoceras

Wannerophyllum

Euconospira sturgeoni

Paralegoceras (Diaboloceras) varicostatum

Wardia

Euconospira trochiformis

Paralegoceras iowense

Waribole

Euconospira turbiniformis

Paralegoceras texanum

Waribole idyia

Euconospira waterlooensis

Paralioclema

Warnantella

Eucritta

Paralithostrotion

Warsawia

Eucritta melanolimnetes

Parallelocrinus

Warsawia lateralis

Euctenius

Parallelodon

Warthia

Euctenius unilateralis

Parallelodon cancellosus

Warthia kingi

Eudissoceras

Parallelodon minima

Waylandella

Eudissoceras collinsvillense

Parallelodon obsoletus

Weania

Eudoxina

Parallelodon qinghaiensis

Weania goldringi

Euestheria

Parallelodon sangamonensis

Weberides

Eugeneodus

Parallelodon tenuistriatus

Wedekindellina

Eugeneodus richardsoni

Parallelora

Wedekindellina alveolata

Eugeropteron

Parallelora subsuavis

Wedekindellina fluxa

Eugeropteron lunatum

Paralogopsis

Wedekindellina henbesti

Eugonophyllum

Paralogopsis longipes

Wedekindellina plena

Eugyrinus

Paralogus

Wedekindellina uralica

Eugyrinus wildi

Paralogus aeschnoides

Wellerella

Eukloedenella

Paraloxoceras

Wellerella delicatula

Euloxoceras

Paralycopodites

Wellerella longiplicata

Euloxoceras angustius

Paramecynostoma

Wellerella multiplicata

Euloxoceras greenei

Paramecynostoma dohrnianum

Wellerella osagensis

Eumecoptera laxa

Paramegaptilus

Wellerella tetrahedra

Eumetria

Paramegaptilus scudderi

Wellerella truncata

Eumetria iowensis

Paramesolepis

Wellergyi

Eumicrerpeton

Paramesolobus

Wellergyi brazerianum

Eumicrerpeton parvum

Paramesolobus luganicus

Wellergyi chesterensis

Eumicrotis

Parametacoceras

Wellergyi dunlopi

Eumorphoblatta boulei

Parametacoceras bellatulum

Wellergyi subdecussatus

Eumorphoceras

Parametacoceras heteromorphum

Wellerites

Eumorphoceras (Edmooroceras) plummeri

Paramicrobrachis

Wellerites mohri

Eumorphoceras (Sulcogirtyoceras) artumbilicatum

Paramicrobrachis fritschi

Welleroceras

Eumorphoceras (Sulcogirtyoceras) jasperense

Paramphicrinus

Wendyichthys

Eumorphoceras (Sulcogirtyoceras) limatum

Paramphicrinus magnus

Wendyichthys dicksoni

Eumorphoceras (Sulcogirtyoceras) sagittarium

Paramphicrinus oklahomaensis

Wendyichthys lautreci

Eumorphoceras (Sulcogirtyoceras) weetsense

Paranarkemina

Wentzelophyllum

Eumorphoceras bisulcatum

Paranarkemina kurtzi

Wentzelophyllum kinkiense

Eumorphoceras girtyi

Paranicklesopora

Werriea

Eumorphoceras medusa

Paranorella changmeensis

Werriea australis

Eumorphoceras milleri

Paraostrava

Westlothiana

Eumorphoceras ornatissimum

Paraostrava stanislavi

Westlothiana lizziae

Eumorphoceras paucinodum

Parapalaeomastax

Westphaloblattinopsis

Eumorphoceras pseudocoronula

Parapalaeomastax dariuszi

Westphaloblattinopsis edwardsae

Eumorphoceras rota

Parapanorpa

Westphalomerope

Eumorphoceras tornquisti

Parapanorpa ungensis

Westphalomerope maryvonneae

Eumorphoceras transuralense

Parapaolia

Westphalopsocus

Eumorphoceras tumulosum

Parapaolia superba

Westphalopsocus pumilio

Eunema

Paraparchites

Westphaloptilus

Eunemacanthus

Paraparchites cyclopeus

Westphaloptilus gallicus

Eunemacanthus heterogyrus

Paraparchites inornatus

Westphalothripides

Eunicites

Paraparchites magnus

Westphalothripides oudardi

Euomphalus

Paraparchites nicklesi

Wewokella

Euomphalus acutus

Paraparchites perminutus

Wewokella costata

Euomphalus angularis

Paraparchites wapanuckensis

Wewokella solida

Euomphalus catilliformis

Parapavona

Wewokites

Euomphalus catillus

Parapavona major

Wewokites venatus

Euomphalus crotalostomus

Paraphorhynchus

Wexfordia hookense

Euomphalus latus

Parapostibulla

Weyeraspis

Euomphalus minimus

Parapostibulla graysoni

Weyerelasma

Euomphalus pentangulatus

Paraschartymites

Weyerella

Euomphalus planodorsatus

Paraschartymites amplexus

Weyerella angularia

Euomphalus planorbis

Paraschartymites repens

Weyerella concava

Euomphalus plummeri

Paraschistoceras

Weyerella minor

Euomphalus serratus

Paraschistoceras costiferum

Weyerella molaris

Euomphalus similis

Paraschistoceras hildrethi

Weyerella protecta

Euomphalus utahensis

Paraschistoceras optatum

Weyerella reticulum

Euonychocrinus

Paraschistoceras reticulatum

Whalleyala

Euonychocrinus simplex

Parasciadiocrinus

Whalleyala bolsoveri

Euonychocrinus websteri

Parasciadiocrinus lancetospinosus

Whatcheeria

Eupachycrinus

Parascytalocrinus

Whatcheeria deltae

Euphemites

Parashumardites

Whidbornella

Euphemites barumensis

Parashumardites eurinus

Whittleseya

Euphemites blaneyanus

Parashumardites fornicatus

Whittleseya elegans

Euphemites callosus

Parashumardites mosquensis

Wiedeyoceras

Euphemites carbonarius

Parashumardites sellardsi

Wiedeyoceras pingue

Euphemites chesterensis

Parashumardites senex

Wiedeyoceras smithi

Euphemites chubutensis

Parasiacyclus

Wiedeyoceras williamsi

Euphemites compressus

Parasiacyclus chatkalicus

Wilkingia

Euphemites dorbignii

Parastaffelloides

Wilkingia andrewsi

Euphemites enodis

Parastenodiscus

Wilkingia inflata

Euphemites filosus

Paratalarocrinus

Wilkingia maxvillensis

Euphemites galericulatus

Paratarbus

Wilkingia neglecta

Euphemites hermosus

Paratarbus carbonarius

Wilkingia terminale

Euphemites hindi

Paratarrasius

Wilkingia terminalis

Euphemites jacksoni

Paratarrasius hibbardi

Wilkingia walkeri

Euphemites kingi

Parathesoneura

Williamsella

Euphemites konincki

Parathesoneura anfractuosa

Williamsella striata

Euphemites labrosa

Parathesoneura carpenteri

Williamsella typicalis

Euphemites lentiformis

Parathurammina

Winchelloceras

Euphemites multiliratus

Paravalhallites

Winchelloceras allei

Euphemites nevadensis

Paravalhallites ganelini

Winchelloceras antiatlanteum

Euphemites nodocarinatus

Parawedekindellina

Winchelloceras knappi

Euphemites pustula

Parawedekindellina pechorica

Winslowoceras

Euphemites randolphensis

Parazeacrinites

Winslowoceras greelyi

Euphemites sacajawensis

Pareinoblatta

Winslowoceras henbesti

Euphemites subglobosus

Pareinoblatta sellardsi

Winterbergia

Euphemites tongxinensis

Parelthoblatta straeleni

Witryides

Euphemites urei

Parethelocrinus

Wonia

Euphemites vittatus

Parethelocrinus variabilis

Woodesmus

Euphemites whirligigi

Pareynia

Woodesmus sheari

Euphemites wongi

Pareynia splendens

Woodocrinus

Euphemus

Parichthyocrinus

Wooramella

Euphoberia

Paripteris

Worthenia

Euphoberia absens

Paripteris gigantea

Worthenia castlemanensis

Euphoberia anguilla

Parisocrinus

Worthenia crenilunula

Euphoberia armigera

Parisocrinus nodosus

Worthenia legrandi

Euphoberia brownii

Parmastega

Worthenia parvula

Euphoberia carri

Parmastega aelidae

Worthenia sculpta

Euphoberia cuspidata

Paromylacris

Worthenia speciosa

Euphoberia ferox

Paromylacris ampla

Worthenia strigillata

Euphoberia flabellata

Paromylacris rotunda

Worthenia tabulata

Euphoberia granosa

Paromylacris rotundum

Worthenia tongxinensis

Euphoberia histrix

Paromylacris thevenini

Worthenocrinus

Euphoberia horrida

Paronaella

Worthenopora

Euphoberia hystricosa

Parulocrinus

Wuxia

Euphoberia lithanthracis

Parulocrinus blairi

Xenadoche

Euphoberia simplex

Parulocrinus pontiacensis

Xenoblatta

Euphoberia spinulosa

Parvaxon

Xenoblatta adjuncta

Euphoberia tracta

Parvidumus

Xenoblatta fraterna

Euphoberia varians

Passalocrinus

Xenoblatta incelebrata

Euphrynus salmi

Patella

Xenoblatta leptophlebica

Eupleuroceras

Patella ottomana

Xenoblatta martynovi

Eupleuroceras bellulum

Patellilabia

Xenoblatta muetzei

Euprioniodina

Patellilabia aplanata

Xenoblatta parvitatis

Euproops

Patellilabia britannica

Xenoblatta pennsylvanica

Euproops amia

Patellilabia chesterensis

Xenoblatta ploetziana

Euproops danae

Patellilabia laevigata

Xenoblatta russoma

Eurites

Patellilabia rhombadella

Xenoblatta simoniana

Eurites bouhamedensis

Patellilabia scriptiferus

Xenoblatta tomiensis

Eurites doliaris

Patellilabia sulcata

Xenoblatta visenda

Eurites kuilukensis

Patellilabia tentoriolum

Xenoneura

Eurites permutus

Patellipora

Xenoneura antiquorum

Euroceras

Patellostium

Xenoptera

Euroceras ellipsoidale

Patellostium ourayensis

Xenoptera riojaensis

Eurydesma

Patellostium witryanum

Xenopteris

Eurydictyella

Patrognathus

Xenopteris brardi

Eurydictyella richteri

Patteiskya

Xeroptera

Eurynotus crenatus

Patteiskya bouckaerti

Xeroptera obtusata

Euryoblastus

Patteiskya volmensis

Xiaheyanella

Euryoblastus veryi

Pattersonia

Xiaheyanella orta

Euryocrinus

Paucipora

Xinjiangoblastus

Eurypterus

Paucispinifera

Xinjiangopecten

Eurypterus (Adelophthalmus) granosus

Paulophyton

Xinjiangopecten costatus

Eurystoma

Paulophyton sommeri

Xixia

Eurystoma angulare

Pauquysia

Xixia huban

Eurytaenia

Pauquysia discrepans

Xixionopsis

Eurytaenia virginiana

Paurodendron

Xyeleblastus

Eurythmopteryx

Paurodendron arranense

Xyeleblastus magnificus

Eurythmopteryx antiqua

Paurogastroderhynchus

Xyrospondylus

Euryzone sublaevis

Paurorhyncha

Xyrospondylus ecordi

Eusauropleura

Pavastehphyllum (Pseudocarniaphyllum) convexum

Xystostrophia

Eusauropleura digitata

Pavastehphyllum (Thomasiphyllum) pendulum

Xystostrophia umbraculum

Eusphenopteris

Peachocaris

Yagonia

Eustephanella

Peachocaris acanthouraea

Yagonia furquei

Eusthenoceras

Pecopteridium pluckenetii

Yagonia gibberensis

Eutaxocrinus

Pecopteris

Yakutoceras

Eutaxocrinus chinaensis

Pecopteris pennaeformis

Yanguania

Euxinita

Pecopteris potoniei

Yanishewskiella

Evactinopora

Pecopteromedullosa

Yanishewskiella angulata

Evactinopora irregularis

Pecopteromedullosa anglica

Ymeria

Evactinopora radiata

Pecten

Ymeria denticulata

Evactinopora vesicularis

Pecten ptychotis

Yochelsonospira

Evenka

Pedanochiton

Yochelsonospira gairensis

Evenka archaica

Pederpes

Yochelsonospira monensis

Evenkiophlebia

Pederpes finneyae

Yochelsonospira tenuilineata

Evenkiophlebia collucata

Pedinocoryphe

Yochelsonospira thomasi

Exaetocrinus

Pedinocrinus

Yoldia subscitula

Exfenestella gzhelensis

Pelecocrinus

Yoospira

Exlaminella

Pellecrinus

Yoospira minutissima

Exlaminella insolita

Penniretepora

Youngiella

Exochops

Penniretepora nodocarinata

Youngiella wapanuckensis

Exochorhynchus

Penniretepora nodolineata

Yuanjia wildungensis

Exochorhynchus barringtoni

Penniretepora pustulosa

Yuanophylloides

Exochorhynchus buriti

Penniretepora subtila

Yuanophyllum

Exochorhynchus curtus

Pennoceras

Yuanophyllum kansuense

Exochorhynchus giganteus

Pennoceras seamani

Yunnania kamenkensis

Exochorhynchus mongolensis

Pennsylvanioxylon

Yunnania minor

Exochorhynchus rectus

Pentagonocyclicus

Yunnania parallela

Exocrinus

Pentagrammysia

Yunnania pygmaeus

Exocrinus multirami

Pentaphyllum

Yunnania semicancellata

Exoriocrinus

Pentaramicrinus

Zadelsdorfia

Exoriocrinus lasallensis

Pentaridica

Zadelsdorfia debouaaensis

Fabalicypris

Pentremites

Zangerlispongia

Fabalicypris glennensis

Pentremites conoideus

Zangerlispongia richardsoni

Fabalicypris hoxbarensis

Pentremoblastus

Zaphrenthis

Fabalicypris parva

Perditocardinia

Zaphrentites

Faberophyllum

Perexigupyge

Zaphrentites arkansanus

Faberophyllum leathamense

Periastron

Zaphrentoides

Fabifenestella

Periastron reticulatum

Zaphriphyllum

Fabifenestella ajensis

Pericalyphe

Zaphriphyllum daleki

Fabifenestella praevirgosa

Pericalyphe longa

Zavjaloblatta

Fabreciella

Pericleites

Zavjaloblatta rotundata

Fabreciella pennsylvanica

Pericleites atticus

Zdenekia

Fadenia

Pericospira

Zdenekia grandis

Fadenia gigas

Pericospira pericoensis

Zdenekia occidentalis

Falcatus

Pericospira riojanensis

Zdenekia silesiensis

Falcatus falcatus

Pericospira sanjuanensis

Zeacrinites

Falcodus

Pericyclus

Zeilleria

Fallacites

Pericyclus (Goniocyclus) antelopensis

Zeilleria delicatula

Fallacites portentosus

Pericyclus (Goniocyclus) blairi

Zellerella ducta

Falsiamplexus delicata

Pericyclus (Goniocyclus) cooperi

Zellerella fusiformis

Falsiamplexus reductus

Pericyclus (Goniocyclus) costulatus

Zellerella hidalgoensis

Fandasterias

Pericyclus (Goniocyclus) decipiens

Zellerella perditia

Fandasterias facetus

Pericyclus (Goniocyclus) filaris

Zenocrinus

Fasciculiamplexus

Pericyclus (Goniocyclus) rockymontanus

Zenocrinus zeus

Fasciculiconcha

Pericyclus circulus

Zephyroceras

Fasciculiconcha knighti

Pericyclus intercisus

Zephyroceras kiaense

Fasciculophyllum

Pericyclus mercatorius

Zessinella

Fasciella

Pericyclus tortuosus

Zessinella siope

Fascipericyclus

Pericyclus trochus

Zeugopleura

Fayettevillea

Periechocrinus

Zia

Fayettevillea densistriata

Periechocrinus indicator

Zimmermannioxylon

Fayettevillea minuscula

Perigrammoceras

Zimmermannioxylon multangulare

Fayettevillea occidentalis

Perimestocrinus

Zlichomphalina

Fayettevillea orientalis

Perimestocrinus teneris

Zlichomphalina texta

Fayettevillea planorbis

Peripetoceras

Zosterogrammus

Fayolia

Peripetoceras bridgeportense

Zosterogrammus stichostethus

Fayolia sterzeliana

Peripetoceras cautum

Zygopleura

Fayoliella

Peripetoceras fischeri

Zygopteris

Fayoliella elongata

Peripetoceras globatoides

Fedexia

Peripetoceras kummeli