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Silur / Silurian

Alter: 416 +/- 2,8 - 443,7 +/- 1,5 Mio. Jahre

Das Silur ist eine erdgeschichtliche Periode des Paläozoikum. Es umfasst den Zeitraum von vor ca. 443 Mio. Jahren bis vor ca. 416 Mio. Jahren. Nach unten wird das Silur durch das Ordovizium, nach oben durch das Devon begrenzt. Früher wurden auch die Bezeichnungen Gotland oder Gotlandium für die Zeitperiode des Silur verwendet.

Nach der internationalen Gliederung der IUGS ist das Silur in die vier Epochen Pridoli, Ludlow, Wenlock und Llandovery unterteilt. Für eine genaue zeitliche Einordnung und die Unterteilung der Epochen in Altersstufen siehe die Geologische Zeittafel.

Namensgebung

Die Bezeichnung Silur wurde nach Forschungen in Wales 1835 erstmals von Roderick Murchison verwendet. Namensgebend ist der keltische Volksstamm der Siluren, die in Südwales gelebt hatten. Damit folgte Murchison dem Beispiel von Adam Sedgwick, der die älteren Schichten im gemeinsam untersuchten Gebiet nach Cambria, dem alten Namen von Wales, Kambrium genannt hatte.

Paläogeographie

Im Silur setzte sich die Drift des Superkontinentes Gondwana in hohe südliche Breiten fort. Prägend für das Silur ist aber die beginnende Kollision der Kontinentalschollen (Kraton) Laurentia und Baltika und damit die Entstehung des zweiten Superkontinents Laurussia (auch Euramerika oder Old Red Kontinent). Die Kollision war Ursache für die Kaledonische Orogenese, der zweiten Phase der Akadischen Gebirgsbildung. Sie führte zur Auffaltung von Gebirgen in weiten Teilen Nord- und Westeuropas (Norwegen, Schweden, Schottland), sowie in Nordamerika und Grönland.

Klima

Während des Silur war die Vereisung der südlichen Landmassen weniger stark als zur Zeit des Ordovizium. Aufgrund des warmen Treibhausklimas führte die Abschmelzung der Eismassen zu einem starken Anstieg des Meeresspiegels, verbunden mit der Bidlung von tropischen Flachmeeren auf den überfluteten Kontinenten. In diesen warmen Flachmeeren bildeten sich umfangreiche Riffe. Zum Ende des Silur ging sank der Meeresspiegel wieder.

Flora

In der Pflanzenwelt erschienen die ersten Gefäßpflanzen (Cooksonia und Baragwanathia) und erste primitive Bärlappgewächse. Wahrscheinlich ist auch das Auftreten der ersten Pilze.

Fauna

Auf den Kontinenten existierte zur Zeit des Silur noch keine Fauna. Dagegen waren die tropische Flachmeere reich an Brachiopoden, Bryozoen, Mollusken und Trilobiten. Erste Knochenfische (Osteichthyes), vertreten durch die Stachelhaie (Acanthodii) traten auf. Ebenso lebten in den Meeren große, bis zu 3m lange Seeskorpione (Eurypterus). Siehe auch die Übersicht der Lebewesen im Silur.

Die Basis des Silur ist durch das erste große Massenaussterben der Erdgeschichte gekennzeichnet. Infolgedessen starben ca. 60% der maritimen Lebensformen aus.


Lebewesen die in der Erdgeschichte im Silur gelebt haben.

Abacocrinus

Fardenia transversalis

Paraharpes costata

Abacocrinus latus

Fascicostella

Paraharpes wegelini

Aberia

Fascifera

Parahelenites

Abyssocrinus

Favistella

Parahippa

Acacocrinus

Favistina

Parahippa rediviva

Acaenoplax

Favositella

Parahughmilleria

Acaenoplax hayae

Favosites

Parakailia

Acanthambonia

Favosites abnormis

Parakidograptus

Acanthoceramoporella

Favosites adaverensis

Parakidograptus acuminatus

Acanthoclema

Favosites afghanicus

Parakionoceras

Acanthocrania

Favosites antiquus

Parakionoceras originale

Acanthocyclus

Favosites bowerbanki

Paraleiolichas

Acanthocyclus porpitoides

Favosites burkhanensis

Paraleiolichas globulus

Acanthograptus

Favosites desolatus

Paraliospira

Acanthohalysites

Favosites exilis

Paraliospira angulata

Acanthopyge (Lobopyge) hirsuta

Favosites fallax

Paraliospira helena

Acanthopyge (Lobopyge) parapleura

Favosites favosiformis

Paraliospira mundula

Acanthopyge (Lobopyge) pristina

Favosites favosus

Paraliospira parva

Acanthoscapha

Favosites gothlandicus

Paraliospira rugata

Acaretyrricula

Favosites hisingeri

Parallelodon

Acaretyrricula tenuiguttae

Favosites ingens

Parallelopora

Acaste

Favosites issensis

Parallelostroma

Acaste downingiae

Favosites jaaniensis

Paralogania

Acastella

Favosites kalevi

Paralogania consimilis

Acastocephala

Favosites mirandus

Paralogania kaarmisensis

Acastocephala macrops

Favosites multicarinatus

Paralogania klubovi

Acdalina

Favosites praemaximus

Paralogania kummerowi

Acdalopora

Favosites privatus

Paralogania ludlowiensis

Acernaspis

Favosites serratus

Paralogania martinssoni

Acernaspis (Eskaspis) sufferta

Favosites subfavosus

Paralogania tarranti

Acernaspis (Eskaspis) woodburnensis

Favosites subforbesi

Paramelocrinus

Acernaspis copperi

Fayettoceras

Paramphipora

Acernaspis orestes

Fenestella

Paramplexoides

Acernaspis superciliexcelsis

Fenestella jupiterensis

Paraorthograptus

Acernaspis xynon

Fenestella striolata

Paraorthograptus pacificus

Acervularia

Fenestrellina

Paraorthograptus uniformis

Achatella

Fenestrirostra

Paraparchites

Achatella schmidti

Fenestrirostra glacialis

Paraphragmites

Achradocrinus

Fentounia

Paraphtonia

Acidaspis

Fentounia helicorostrata

Parapisocrinus

Acidaspis aviensis

Ferestromatopora

Parapisocrinus quinquelobus

Acidaspis bispinosa

Ferganella borealis

Paraplegmatograptus

Acidaspis brightii

Fibrocrinus

Paraplegmatograptus uniformis

Acidaspis evoluta

Fibrocrinus phragmos

Paraproetus

Acidaspis pectinata

Finkelnburgia

Paraproetus brevifrons

Acidolites

Finksella

Pararaphistoma

Acmophyllum

Finksella turbinata

Pararaphistoma qualteriata

Acodina

Fistellaspongia

Parareteograptus

Acodina inoptinata

Fistellaspongia inclinata

Parareteograptus sinensis

Acodus

Fistulipora

Pararetiograptus

Acodus jonesi

Fistulipora megastoma

Paraschmidtella

Acodus similaris

Flabellitesia

Parasphaeronites

Acrosaccus

Flabellitesia adaia

Parasphaerorthoceras

Acrotreta

Flabellitesia kessei

Parasphaerorthoceras accuratum

Acrotretella

Flectoconularia

Parastauria

Actinoceras

Flemingella

Parastelliporella

Actinoceras anticostiense

Fletcheria

Parastriatopora

Actinoceras carletonense

Fletcheriella

Parastriatopora celebrata

Actinoceras lambei

Fletcheriella catervatima

Parastriatopora mirifica

Actinoceras lesperancei

Flexicalymene

Parastriatopora nigrolimitata

Actinodictyon

Flexicalymene meeki

Parastriatopora rhizoides

Actinodictyon suevicum

Flexicalymene praelongicephala

Parastrophina

Actinodochmioceras

Flexicalymene quadricapita

Parastrophina angulosa

Actinodonta

Flexicalymene retrorsa

Parastrophina lindstroemi

Actinomena

Flexicalymene scotica

Parastrophina pentagonalis

Actinopterella

Flexicalymene senaria

Parastrophinella

Actinopteria

Flexicalymene vaccarii

Parastrophinella reversa

Actinopteria pumila

Foersteoceras

Parastrophonella

Actinostroma

Foerstephyllum

Parastylonurus

Actinostromella

Foliomena

Parastylonurus ornatus

Acutiramus

Foliomena folium

Paratetradium

Acutiramus floweri

Forolina

Parayoungia

Adamczakia

Forolinia

Parayoungia brennardi

Adaverina

Forolinia brevis

Parayoungia eleyae

Adaverina gutta

Forolinia implana

Parayoungia folinsbeei

Aechmina

Forolinia laminaris

Parayoungia mclaughlini

Aegiria

Forolinia lenticularis

Parayoungia tuberculata

Aegiria apta

Forolinia lineata

Parazophocrinus

Aegiria garthensis

Forolinia pachyphylla

Parenthatia

Aegiria norvegica

Forolinia paka

Parillaenus

Aegiromena

Fosselasma

Pariocrinus

Aegiromena (Aegiromenella) planissima

Fosselasma unicum

Parisoceraurus

Aegiromena durbenensis

Fossopora

Parisocrinus

Aesopomum

Fragiscutum

Parisocrinus mulletensis

Aesopomum delicatum

Fragucrinus

Parmorthina

Aetholicotoxotis

Fragucrinus bothros

Parmula

Aetocrinus

Frammia

Parmula hemisphaerica

Aetocrinus gracilis

Freja

Parodospongia

Agarhyncha

Fremontoceras

Parodospongia euhydra

Agelacrinites

Frodospira

Paroistodus

Agetograptus

Frodospira cochleata

Paromalomena

Agetolitella

Frodospira imbricata

Paromalomena inequistriata

Agetolites

Frodospira munda

Paromalomena macmahoni

Agetolites maxima

Frodospira tortuosa

Paroocerina

Agetolites oculiporoides

Frostiella

Paroocerina arctum

Agetolites raritabulatus

Fuchsella amygdalina

Paroocerina borealis

Agetolites yushanensis

Fungochitina

Parulrichia

Akidograptus

Furcaster

Parvigena

Akrosphaerorthoceras

Furcaster leptosoma

Parvigena parvigena

Alaskadiscus giganteus

Furcitella

Parvigena putealis

Alaskadiscus laticonchus

Furcitella nodosa

Parvihebetoceras

Alaskadiscus tenuis

Furculosus

Parvihebetoceras wahli

Alaskaspongiella

Furculosus carpathicus

Parvohallopora

Alaskaspongiella laminosa

Fusispira

Parvohallopora ramosa

Alaskodiscus

Fusispira gigantea

Pasceolus

Alaskospira

Fusispira nobilis

Passalocrinus

Alaskospira dunbari

Fusispira ventricosa

Patelliocrinus

Alaskospira fabiformis

Fuyunia

Patellispongia

Alastega

Gabelia

Patellispongia alternata

Alastega lira

Gabelia intermedia

Patellispongia attenuata

Alceste

Gabelia pedunculus

Patellispongia australis

Aldanispirifer

Galeograptus

Patellispongia mackenziensis

Aldridgeodus

Galerodus

Patellispongia rugosa

Aldridgeodus minimus

Galerodus magalius

Paterula

Aleodonta

Galtoceras

Patrocardia

Aleodonta burei

Gamachignathus

Pattersonia

Algerina algena

Gannibeyrichia

Paucicrura

Alisocrinus

Gaotania

Paucicrura corpulenta

Alispira

Garniella

Paucicrura fistulosa

Allocrinus

Garwoodia

Paulicystis

Allocystites

Gasconsia

Paulicystis densus

Allodesma

Gasconsoceras

Paulicystis sparsus

Allonema

Gaspocyrtoceras

Pauline

Allonema silurica

Gaspocyrtoceras clarksoni

Pauline avibella

Allonychia

Gaurocrinus

Paulocrinus

Allozygocrinus

Gaurocrinus fimbriatus

Paupospira

Allozygocrinus dubuquensis

Gazacrinus

Paupospira akpatokensis

Allozygocrinus exallos

Geisonoceras

Paupospira beatrice

Allumettoceras

Geisonoceras kureikense

Paupospira bowdeni

Alopocrinus

Geisonoceras maclareni

Paupospira burginensis

Alopocrinus parvus

Geisonoceras wegelini

Paupospira circe

Altaethyrella

Geisonocerina

Paupospira manitouliensis

Altaethyrella zhejiangensis

Gelidorthina

Paupospira moorei

Altaja

Gelidorthis

Paupospira thebesensis

Alveolella

Geniculina

Paupospira trilineata

Alveolites

Gephuropora

Paupospira tropidophora

Alytodonta

Gephuropora infera

Paupospira varians

Alytodonta gibbosa

Gephuropora varia

Paurorthis

Amblysiphonella

Geragnostus

Paurorthis inopinatus

Amblysiphonella grossa

Gerasaphes

Pedavis

Amblysiphonelloides

Geraspis

Pedomphalella

Amblysiphonelloides tubulara

Geraspis rara

Peiragraptus

Ambonychia

Gerronodictyon

Pelekysgnathus

Ambonychia alata

Gerronostroma

Pelekysgnathus index

Ambonychia cultrata

Gerronostroma juveneforme

Pelicaspongia

Ambonychia obesa

Gibberella

Pelicaspongia perforata

Ambonychia volitans

Giganteograptus

Pelidocrinus

Ambonychinia

Gillatia

Peltocaris

Ambonychinia corrugata

Giraldibella

Pembrostrophia

Ambonychinia demissa

Giraldibella bella

Pemphocystis

Ambonychinia striata

Giraldibella hyskovensis

Penniretepora

Ambonychiopsis

Giraldiella

Pentacystis

Ambonychiopsis osmundsbergensis

Giraldiella giraldi

Pentacystis gibsoni

Americaspis

Giraldiella protensa

Pentagonocyclicus

Amerista

Giraldiella subsilurica

Pentamerifera

Ammodiscus

Girtyocoelia

Pentameroceras

Amorphognathus

Girtyocoelia epiporata

Pentameroides

Amorphognathus duftonus

Girtyocoelia minima

Pentameroides septentrionalis

Amorphognathus ordovicicus

Girvanella

Pentameroides subrectus

Amorphognathus ordovicius

Girvanella problematica

Pentamerus

Amorphognathus ventilatus

Girvanella richmondensis

Pentamerus asiaticus

Amosina

Gissocrinus

Pentamerus gothlandicus

Amosina paolae

Gissocrinus ludensis

Pentamerus oblongus

Amosina pediculorum

Gladiostrophia

Pentamerus palaformis

Amphicoelia leidyi

Glansicystis

Pentlandella

Amphicoelia pojetana

Glassia

Pentlandia

Amphicyrtoceras

Glassina

Pentlandina

Amphilichas

Glassina laeviuscula

Pentlandina harperi

Amphilichas cucullus

Glauconome plumula

Pentlandina lamelliformis

Amphilichas dalecarlicus

Glauconome strigosa

Pentlandina lewisii

Amphilichas latifrons

Glauconomella

Pentlandina loveni

Amphilichas lineatus

Glauconomella disticha

Pentlandina parvula

Amphilichas wahlenbergi

Gleesonia

Pentlandina tartana

Amphiocoelia

Gleesonia porosa

Pentlandopterus

Amphiplecia

Globispira acuta

Pentlandopterus minor

Amphiplecia bondarevi

Globonema

Perforocycloides

Amphiplecia tardicostata

Globonema fraternum

Perforocycloides nathalieae

Amphipora

Globonema kaysi

Periechocrinus

Amphipsalidocrinus

Globonema kokeni

Periodon

Amphisella

Globonema lyelli

Periodon aculeatus

Amphistrophia

Globonema muricatum

Periodon grandis

Amphistrophia striata

Globonema pauperum

Perissocoelia

Amphistrophia whittardi

Globonema peregrinum

Perissocoelia gelasinina

Amphistrophiella funiculata

Globonema turritum

Perissocoelia habra

Amphitoxotis

Globulaspis

Perissocoelia spinosa

Amphitryon

Glomospira

Peritrimerella

Amphitryon murchisonii

Glomospirella

Pernericirrus

Amplexograptus

Glossites (Pharciglossites) rugatus

Pernericirrus sinistorus

Amplexograptus manitoulinensis

Glossoceras

Peronopora

Amplexoides

Glossograptus

Perryus

Amplexopora

Glossoleptaena

Perryus severnensis

Amplexus

Glossoleptaena emarginata

Pesnastylus

Ampuloides

Glossoleptaena pixis

Petalichnus

Ampyx

Glossomorphites

Petalocrinus

Ampyxina

Glyptambon

Petalocrinus bifidus

Ampyxinella

Glyptocrinus

Petalograptus

Amsassia

Glyptograptus

Petalolithus

Amsassipora

Glyptograptus tamariscus

Petalotrypa

Amsdenina

Glyptomena

Petigopora

Amsdenoides

Glyptorthis

Petraia

Amsdenostrophiella prolongata

Glyptorthis crispata

Petraster

Amygdalella

Glyptorthis daytonensis

Petridiostroma

Anabaia

Glyptorthis fausta

Petridiostroma incrustatum

Anabaria

Glyptorthis insculpta

Petridiostroma parsimplex

Anacaenaspis

Glyptorthis irrupta

Petridiostroma regulare

Anacaenaspis callipareos

Glyptorthis maquoketensis

Petrocrania

Anacaenaspis dealgach

Glyptorthis marilara

Petrocrania mullochensis

Anacaenaspis emarginata

Glyptorthis maritima

Petrocrania scabiosa

Anacaenaspis gotlandensis

Glyptorthis pulchra

Petrozium

Anacaenaspis zedei

Glyptorthis vidari

Petrozium losseni

Ananaspis

Gnamptorhynchos

Petrozium staufferi

Anapetopsis

Gnamptorhynchos globatum

Pezopallichthys

Anapetopsis fasciatus

Gnamptorhynchos orbiculoidea

Pezopallichthys ritchiei

Anapetopsis fastigiatus

Gnamptorhynchos prayi

Phacopidella

Anapetopsis lalajae

Gnathodus

Phacopidella trisulcata

Anapetopsis maclearni

Gnorimocrinus

Phacops

Anaphragma

Gochtia

Phacops crosslei

Anaphragma mirabile

Goldillaenus

Phacops macdonaldi

Anartiocystis

Goldius

Phaenophragma

Anartiocystis foerstei

Gomphoceras

Phaenopora

Anasobella

Gomphocystites

Phaenopora ensiformis

Anaspyroceras

Gomphocystites glans

Phaenopora explanata

Anastrophia

Gomphocystites indianensis

Phaenopora multifida

Anastrophia deflexa

Gomphodus

Phaenoporella

Anataphrus

Gomphonchus

Phanerotrema

Anatiferocystis

Gomphonchus hoppei

Phanerotrema axion

Anazyga

Gomphonchus sandelensis

Phanerotrema communis

Anazyga recurvirostra

Gonatocaris

Phanerotrema consimilis

Ancientia

Gongylostonyx

Phanerotrema dolium

Ancillotoechia

Goniodontus lindstroemi

Phanerotrema jugosum

Ancillotoechia ancillans

Goniophora

Phanerotrema lindstroemi

Ancillotoechia bidentata

Goniophora (Goniophora) cymbaeformis

Phanerotrema occidens

Ancillotoechia eva

Goniophora ascia

Phanerotrema rugosa

Ancistrorhyncha

Goniophora bragei

Pharetrolites

Ancoradella

Goniophora brimeri

Pharetrolites cristatus

Ancoradella ploeckensis

Goniophora compta

Pharetrolites murchisoni

Ancyrochitina

Goniophora gymeri

Phaulactis

Andreolepis

Goniophora solci

Phaulactis semaiophylloides

Angochitina

Goniophora thula

Phialaspis

Angopora dubia

Goniophora tyri

Philhedra

Angopora hisingeri

Goniophorina

Philhedra stawyensis

Angopora tenuicula

Goniophorina (Cosmogoniophorina) carinata

Phillipsinella

Angopora vera

Goniophorina nitidula

Phillipsinella parabola

Angullongia

Goniophyllum

Philoxene

Angullongia vesica

Goniosphaeridium

Philoxene alacer

Angullophyllum

Goniostropha bachelieri

Philoxene mopsus

Angulospira

Goniotrypa

Philoxene paveyi

Angulospira striata

Goniotrypa bilateralis

Philoxene perlongus

Anisocrinus

Goniporus

Philoxene plicatulus

Anisocrinus prinstaensis

Goniporus alatus

Philoxene praestans

Anisopleurella

Goodsiraspis

Philoxene sodalis

Anisopleurella anceps

Goodsiraspis packardi

Phimocrinus

Anisopleurella asiatica

Gorbyoceras

Phlebolepis

Anodontopsis

Gorbyoceras alternestriatum

Phlebolepis elegans

Anolotichia

Gorbyoceras gorbyi

Phlebolepis ornata

Anolotichia ponderosa

Gorbyoceras gracile

Phoenicitoechia

Anomalocoelia

Gorbyoceras hammelli

Phoenicitoechia martinensis

Anomalocrinus

Gordia

Pholadomorpha

Anomalocystites

Gordonaster

Pholadomorpha pholadiformis

Anomalodonta

Gordonaster brassfieldensis

Pholidops subtruncata

Anomalodonta gigantea

Gorgonisphaeridium

Pholidostrophia

Anomaloides

Gotatrypa

Pholidostrophia (Eopholidostrophia) cocksi

Anomaloides reticulatus

Gothocrinus

Pholidostrophia (Mesopholidostrophia) lamellosa

Anomalotoechus

Gothograptus

Phormograptus

Anoplotheca

Gotlandechinus

Phosphannulus

Anoptambonites

Gotlandella

Phragmoceras

Anoptambonites myiomorpheus

Gotlandellites

Phragmoceras munthei

Anoptambonites myriomorpheus

Gotlandites

Phragmodictya

Anoptambonites williamsi

Gotlandochitina

Phragmolites

Anoptera angusta

Gotlandochiton

Phragmolites desideratus

Anostylostroma

Gotlandochiton interplicatus

Phragmolites dyeri

Ansella

Grabauphyllum

Phragmolites lindstroemi

Ansella jemtlandica

Gracianella

Phragmolites pannosus

Anthaspidella

Gracianella graciosa

Phragmolites phaecus

Anticalyptraea

Gracianella lissumbra

Phragmolites slawsoni

Anticalyptraea westergaardi

Gracianella rudicristata

Phragmorthis

Anticostia

Graciloceras

Phragmorthis buttsi

Anticostiodus

Grammolomatella

Phragmosphaera

Anticostiodus fahraeusi

Grammysia

Phragmosphaera expansus

Antihomocrinus

Grandostoma

Phragmosphaera globata

Antiplectoceras

Grandostoma caudatum

Phthonia

Antiplectoceras askerense

Grandostoma taconicum

Phthonia regularis

Antirhynchonella

Graptodictya

Phylacops

Antirhynchonella linguifera

Graptodictya boreniensis

Phyllodictya

Antizygospira liquanensis

Graptodictya perelegans

Phylloporina

Antrospongia

Graptolites

Phylloporina kinnekullensis

Antrospongia aberrans

Graticula

Phyrtosaster

Aostipora

Gravicalymene

Phyrtosaster casteri

Aparchitella

Gravicalymene quadrata

Pidelocrinus

Aparchites

Grayina

Piersaloceras

Apatobolbina

Greenfieldia

Piersaloceras gageli

Apatochilina

Grewingkia

Pileograptus

Aphanomena chilcaensis

Grewingkia anguinea

Pilina

Aphanomena planoconvexa

Grewingkia buceros

Pilina solarium

Aphanomena schmalenseei

Grewingkia contexta

Pilina unguis

Aphanomena urbicola

Grewingkia robusta

Pilla

Aphelognathus

Grewingkia robustum

Pilolepsis

Aphelognathus pyramidalis

Grypocrinus

Pilophyllia

Aphrosalpinx

Guandacolithus

Pilophyllum

Aphrosalpinx nana

Guelphinacella

Pilophyllum massivum

Aphrosalpinx textilis

Guelphinacella canadense

Pilophyllum porosum

Apianurus

Guerichina

Pilophyllum zonatum

Apianurus clevei

Guiyu

Pinguaella

Apiculiretusispora

Guiyu oneiros

Pinguispirifer

Apidium indicum

Gunnarella

Pinnocaris

Apiocystites

Gunnarella corrugatella

Pinnocaris lembodes

Apoarchaeocrinus

Gunnarella magnifica

Pinocladia

Apoarchaeocrinus anticostiensis

Gypidula

Pinocladia triangulata

Apocalymene

Gypidula akimiskiformis

Pinpilla

Apolichas

Gypidula galeata

Pinpilla uformis

Apolichas truncatus

Gypidula rudiplicativa

Pionodema

Aporthophyla

Gypidula simplex

Pionodema aberstadti

Appendispinograptus

Gypidulina

Pionodema hypermeca

Appendispinograptus longispinus

Gyrodoma

Pirgumena

Appendispinograptus supernus

Gyrodoma marylandica

Pirgumena martnai

Appendispinograptus venustus

Gyrolithes

Pisocrinus

Apsidoceras

Gyronema

Pisocrinus campana

Apsidognathus

Gyrosphaera

Pisocrinus sphericus

Apsidognathus tuberculatus

Gyrosphaera raneatela

Pittsfordipterus

Apsidognathus walmsleyi

Gyrosphaera siljanensis

Placocliftonia

Aptilechinus

Hadoceras

Placocliftonia colibri

Aptychopsis

Hadoceras septocurvatum

Placocoenites

Apycnodiscus

Hadrognathus

Placocoenites orientalis

Apycnodiscus insularis

Hadromeros

Placocoenites pellicula

Aquirrea

Hadromeros elongatus

Placocystites

Aquirrea fluegelii

Hadromeros keisleyensis

Placotriplesia

Arabellites

Hadroskolos

Plaesiomys

Arachniograptus

Hadroskolos pentastichos

Plaesiomys anticostiensis

Arachnophyllum

Hagnocrinus

Plaesiomys bellilamellosus

Arachnophyllum approximatum

Hagnocrinus bainbridgensis

Plaesiomys bellistriatus

Arachnophyllum murchisoni

Hagnocrinus balli

Plaesiomys carletona

Arachnophyllum pentagonum

Hagnocrinus crenus

Plaesiomys cutterensis

Arachnostega

Halichondrites

Plaesiomys idahoensis

Arachnostega gastrochaenae

Haliestes

Plaesiomys occidentalis

Araeopoma

Haliestes dasos

Plaesiomys porcata

Araneosustroma

Hallicystis

Plaesiomys proavitus

Araneosustroma astroplexum

Halliella

Plaesiomys rockymontana

Araspirifer

Hallograptus

Plaesiomys subquadratus

Aratanea

Hallopora

Plagiorhyncha

Aratanea monodi

Hallopora dalmani

Plagiorhyncha cordata

Aratoechia

Hallopora elegantula

Plagiorhyncha depressa

Archaefenestella

Hallopora multipora

Plagiostomoceras

Archaefenestella mobergi

Hallopora solbergiensis

Plagiostomoceras culter

Archaeocalyptocrinus

Hallopora wesenbergiana

Plagiostomoceras pleurotomum

Archaeochonetes

Halysis

Planalveolites

Archaeochonetes primigenius

Halysites

Planiscutellum

Archaeocrinus

Halysites catenularia

Planitrochus

Archaeofenestella

Halysites catenularius

Planocoenites

Archaeophialia

Halysites grandis

Planolites montanus

Archaeophialia antiquissima

Halysites junior

Plantella

Archaeopraga

Halysites priscus

Plasmophyllum

Archaeopraga pinnaeformis

Halysites regularis

Plasmopora

Archaeoscyphia

Halysites senior

Plasmoporella

Archaeoscyphia alternata

Hamarodus

Platybolbina

Archaeoscyphia attenuata

Hamarodus europaeus

Platybolbina elongata

Archaeoscyphia boltoni

Hanilepis

Platybolbina plana

Archaeoscyphia gislei

Hanyangaspis

Platyceras

Archaeoscyphia minganensis

Hanyangaspis guodingshanensis

Platyceras angulatum

Archaeoscyphia rectilinearis

Hapalocrinus

Platyceras disciforme

Archaeoscyphia scalaria

Hapalocrinus quinquepennis

Platyceras niagarensis

Archegonaspis

Haplentactinia

Platyconus

Archeochonetes muirwoodae

Haplistion

Platycoryphe

Archinacella

Haplistion creswelli

Platylichas

Archinacella estella

Haplistion cylindricum

Platylichas (Rontrippia) grayii

Archinacella indianensis

Haplistion frustrum

Platylichas cicatricosus

Archinacella kagawongensis

Haplistion minutum

Platylichas infimus

Archinacella laevis

Haplistionella

Platyloron

Archinacella rotunda

Haplistionella garnieri

Platyloron voluta

Archinacella rugatina

Haplistionella minitraba

Platymena

Archipelepis

Haplograptus

Platymetopus

Archipelepis turbinata

Haploprimitia

Platyorthis

Archiretiolites

Haplosphaeronis

Platyorthis ovalis

Arcticalymene

Haplosphaeronis oblonga

Platyostoma

Arctinurus

Haplosphaeronis proiciens

Platyostoma adstrictum

Arctinurus anticostiensis

Haplospira craigi

Platyostoma boggsi

Arctinurus boltoni

Haplotaeniatum

Platyostoma brownsportense

Arctomeristina

Haplotaeniatum cathenatum

Platyostoma cliftonensis

Arctoplax

Hapsiphyllum

Platyostoma cornutum

Arctoplax ornata

Haptocrinus

Platyostoma daytonense

Arcuaria

Hardieopterus

Platyostoma hemispherica

Arenorthis

Hardieopterus macrophthalmus

Platyostoma humile

Arenorthis arenaria

Harpes

Platyostoma niagarensis

Arenorthis paranaensis

Harpidella

Platyostoma perforatum

Areostrophia

Harpidella (Harpidella) newlandensis

Platyostoma plebeium

Ariaspis arctata

Harpidella (Harpidella) thomasi

Platyostoma ventricosum

Ariaspis ornata

Harpidella megalops

Platyrhomboides

Arionoceras

Harpidella occidentalis

Platyschisma infima

Arionoceras canonicum

Harpidium

Platystrophia

Arionoceras capillosum

Harringtonacaste

Platystrophia acutilirata

Arionoceras densiseptum

Harringtonia

Platystrophia annieana

Arisaigaster

Harrisoceras

Platystrophia biforatus

Arisaigia

Havlicekia

Platystrophia clarksvillensis

Aristocystites

Healdianella

Platystrophia crassoplicata

Aristocystites metroi

Hebellum

Platystrophia cypha

Arjamannia

Hebertella

Platystrophia hopensis

Arjamannia aulangonensis

Hebertella maria

Platystrophia humilis

Arjamannia cancellatula

Hebertella occidentalis

Platystrophia laticosta

Arjamannia inexpectans

Hebertella sinuata

Platystrophia lynx

Arjamannia pteronoides

Hebetoechia

Platystrophia ponderosa

Arjamannia sybellina

Hecetaphyton

Platytrochalos

Arjamannia woodlandi

Hecetastoma

Platytrochalos crudicostatus

Arkonoceras

Hecetastoma clarki

Platytrochalos peninversus

Armenoceras

Hecetastoma gehrelsi

Platytrochalos pulvinatus

Armenoceras chicottense

Hecetastoma salteri

Plectambonites

Armenoceras cygneum

Hedeia

Plectambonites schmidti

Armenoceras michaudae

Hedeina

Plectambonites sericeus

Armenoceras nummularium

Hedeina crispa

Plectatrypa

Armenoceras raptor

Hederella

Plectatrypa hibernica

Armenoceras subconicum

Hederella canadensis

Plectatrypa imbricata

Arthraria

Hedstroemina

Plectatrypa lamellosa

Arthraria biclavata

Hedstroemina reticulata

Plectatrypa savagei

Arthroclema

Hedstroemophyllum nikiforovae

Plectatrypa unicosta

Arthroclema brevis

Heikea nux

Plectoceras

Arthroclema pentagonalis

Heikea reniformis

Plectochitina

Arthropoma

Heikea rotunda

Plectodina

Arthrorhachis

Helcionopsis

Plectodonta

Arthrotrypa

Helenolites

Plectodonta (Plectodonta) mariae

Arthrotrypa ovata

Helicelasma

Plectodonta (Plectodonta) minima

Asaphocrinus

Helicelasma rusticum

Plectodonta bipartita

Asaphus

Helicelasma simplex

Plectoglossa

Ascanigypa

Helicelasma whittardi

Plectograptus

Ascetopeltis

Helicocrinus

Plectonotoides boucoti

Ascoceras

Helicotoma

Plectonotoides cherylae

Ascograptus

Helicotoma brocki

Plectonotoides trilobatus

Asinomphalus

Helicotoma griffinorum

Plectonotus

Asinomphalus antiqua

Helicotoma marginata

Plectonotus derbyi

Aspeluindia

Helicotoma planulata

Plectorthis

Aspelundia

Helicotoma superba

Plectorthis plicatella

Aspelundia fluegeli

Heliocrinites

Plectospathodus extensus

Asperophyllum

Heliocrinites minutus

Plectospira

Asperopora

Heliocrinites rouvillei

Plectostroma

Asperopora crustulenta

Heliocrinites stellatus

Plectostroma intertextum

Aspidograptus

Heliolites

Plectostroma necopinatum

Aspidopora

Heliolites barrandei

Plectothyrella

Astakocrinus

Heliolites waicunensis

Plectothyrella crassicosta

Astakocrinus teren

Heliomeroides

Plectothyrella itacurubiensis

Astarte

Helioplasmolites

Plectotreta

Asthenophyllum

Helminthidium

Plectotreta lindstroemi

Astraeospongium

Helminthochiton

Plectrochiton

Astraspis

Helminthoidichnites

Plectrochiton tegulus

Astraspis desiderata

Helminthoidichnites marinus

Plegagnathus

Astrocerium

Helokybe

Plegagnathus dartoni

Astrocystites

Heloplax

Plegmatograptus

Astropentagnathus

Heloplax papilla

Plemeroceras

Astropentagnathus irregularis

Helopora

Plemeroceras cassis

Astroproetus

Helopora fragilis

Pleostylostroma

Astroproetus pseudolatifrons

Hemiagetolites

Plesicarinatina

Astroviellina

Hemiagetolites longiseptatus

Plesiowensus

Astylospongia

Hemiagetolites palaeofavositoides

Plesiowensus confossus

Astylospongia lutera

Hemiagetolites spinimarginatus

Plesiowensus obconicus

Astylospongia praemorsa

Hemiarges

Plethobolbina

Astylospongiella

Hemiarges extremus

Pleurocornu

Astylospongiella striola

Hemicosmites

Pleurocystites

Astylostroma

Hemicosmites grandis

Pleurocystites anticostiensis

Astylostroma micra

Hemicosmites sculptus

Pleurocystites beckeri

Atactocrinus

Hemicosmites variabilis

Pleurodictyum

Atactocrinus wilmingtonensis

Hemicosmorthoceras

Pleurodium

Atactopora

Hemicosmorthoceras laterculum

Pleurograptus

Atactoporella

Hemicosmorthoceras semimbricatum

Pleurograptus linearis

Atactotoechus

Hemicystites

Pleurograptus lui

Atavograptus

Hemieridotrypa

Pleurorima

Atavograptus atavus

Heminematopora

Pleurorima cytherea

Ateleaspis

Hemisphaerammina

Pleurorima kayseri

Ateleocystites

Hemitoechia

Pleurorima leptoconcha

Atelodictyon

Hemitoechia distincta

Pleurorima migrans

Athenaegis

Hemitoechia undvaensis

Pleurorima pragensis

Athenaegis chattertoni

Hemsiella

Pleurorima tranquilla

Atractopyge

Hennigopora

Pleurorima wisbeyensis

Atractopyge brevicauda

Hennigopora apta

Pleurorthoceras

Atractopyge confusa

Hercochitina

Pleurorthoceras clarksvillense

Atrypa

Hercotrema

Pleurorthoceras osmundsbergense

Atrypa (Gotatrypa) blodgetti

Hercotrema pentaforma

Pleurorthoceras selkirkense

Atrypa (Gotatrypa) hedei

Hercotrema spissicostatum

Pleurorthoceras subcostatum

Atrypa (Gotatrypa) variabilis

Hercynella

Pleurotomaria

Atrypa dormitzeri

Hermatostroma

Pleurotomaria (Euryzone) comatula

Atrypa hedei

Heropyrgus

Pleurotomaria alatus

Atrypa putilla

Heropyrgus disterminus

Pleurotomaria viola

Atrypa reticularis

Herpetocrinus

Plexodictyon

Atrypella borealis

Herrmannina

Plexodictyon gobiense

Atrypella scheii

Hesperorthis

Plicanoplia

Atrypella tenuis

Hesperorthis avalanchensis

Plicidium

Atrypina

Hesperorthis davidsoni

Plicocyrtia

Atrypina barrandii

Hesperorthis gotlandica

Plicodendrocrinus

Atrypinella

Hesperorthis hillistensis

Plicodendrocrinus casei

Atrypinopsis

Hesperorthis martinssoni

Plicodendrocrinus petryki

Atrypoidea australis

Hesperorthis onniensis

Plicoplasia

Atrypoidea latilingulata

Hesperorthis pyramidalis

Plicostricklandia

Atrypoidea linguata

Heterocrinus

Plumatalinia

Atrypoidea praelingulata

Heterocyclopyge

Plumulites

Atrypoidea prunum

Heterolasma

Podollites

Atrypoidea scheii

Heteronema

Podollites diseptatus

Atrypopsis severnensis

Heterorthella

Podowrinella

Auchenaspis

Heterorthella precordillerana

Podowrinella straitonensis

Auchenaspis verrucosus

Heterorthella tondonensis

Poikilofusa

Augustoceras

Heterorthina

Poikilofusa spinata

Augustoceras molense

Heterorthina cybele

Pojetaconcha

Aulacatrypa

Heterorthina fairmountensis

Pojetaconcha davidis

Aulacera

Heterorthis

Pojetaconcha praepristis

Aulacera cylindrica

Heterotrypa

Poleumita

Aulacera nodulifera

Heterotrypa compressa

Poleumita alatum

Aulacera nodulosa

Hexacrinites

Poleumita crenulata

Aulacera plummeri

Hexameroceras

Poleumita discors

Aulacera radiata

Hexatractiella

Poleumita gyrans

Aulacera undulata

Hexatractiella nevadensis

Poleumita hudsonica

Aulacognathus

Hexatractiella pseudonevadensis

Poleumita incarinatus

Aulacognathus bullatus

Hexedriocystis

Poleumita octavia

Aulacognathus latus

Hexedriocystis mimus

Poleumita rugosa

Aulacopleura

Hexismia

Poleumita scamnata

Aulichnites

Heyuncunoceras

Poleumita semiplanus

Aulocopella

Hibbardella

Poleumita vernonensis

Aulocopella winnipegensis

Hibbertia costatus

Poleumita walmstedti

Aulocopium

Hillaepora

Polybranchiaspis

Aulocopium aurantium

Hillophyllum

Polychaetaspis

Aulocopium nana

Hindella

Polydeltoideus enodatus

Aulocystella

Hindella angustifrons

Polygnathoides

Aulopora

Hindella cassidea

Polygrammoceras

Aulopora amica

Hindella crassa

Polygrammoceras chicottense

Aulopora assueta

Hindella incipiens

Polygrammoceras ellisense

Aulopora celsa

Hindella kiaeri

Polyorophe

Aulopora enodis

Hindella prinstana

Polyplacospongia

Aulopora necopina

Hindella umbonata

Polyplacospongia nodosa

Aulopora repens

Hindenites

Polypora

Auloporella

Hindeodella equidentata

Polytropis durhamensis

Auriptygma

Hindeodella excavata

Polytryphocycloides

Auriptygma bulimina

Hindia

Polytryphocycloides huronensis

Auriptygma fenestrata

Hindia sphaeroidalis

Polytryphocycloides lindstroemi

Auriptygma fortior

Hircinisca

Pomerantsoceras

Austinella

Hiregiroceras

Pomerantsoceras tibia

Australina

Hiregiroceras costalatum

Pompeckia

Australoacaste

Hiregiroceras verum

Pompeckia minor

Australobollia

Hirnantia

Poracanthodes

Australonema

Hirnantia noixella

Porambonites

Australonema varvarae

Hirnantia sagittifera

Porefieldia

Australophyllum

Hirneacrinus

Porefieldia robusta

Australoscutellum

Hirneacrinus cupellaeformis

Porfirieviella

Australostrophia

Hirneacrinus perplanus

Porkunioceras

Avalanchia

Hiscobeccus

Porkunioceras tuba

Avalanchia pterocarina

Hiscobeccus capax

Porkunites

Avalanchurus

Hiscobeccus gigas

Porkunites amalloides

Aviacypris

Hiscobeccus kananaskia

Porkunites dubius

Avitograptus

Hisingerella

Porocrinus

Avitograptus avitus

Hisingerella hetera

Porosothyone

Axolasma

Hisingerella tenuis

Porosothyone picketti

Axuolites

Hispaniaspis

Porpites

Azygograptus

Histiodella

Porpites rotuloides

Bactroceras

Hoegisphaera

Portranella

Bactrotheca

Hogmochilina

Praeanomalodonta

Baculograptus

Holacanthia sytovae

Praecardium

Baikitolites

Holdenia

Praectenodonta

Bairdiocypris

Holmipterus

Praeidiostroma

Bajgolia

Holmophyllum

Praeleda compar

Balizoma

Holocystites

Praenucula

Baltisphaeridium

Holocystites (Holocystites) alternatus

Praenucula abrupta

Baltoniodus

Holocystites (Megacystites) abnormis

Praenucula dispar

Baltoniodus variabilis

Holocystites (Sepulticystis) spangleri

Praenucula faba

Bancroftina

Holocystites cylindricus

Praeostrea

Bancroftina bouceki

Holocystites salmoensis

Praeostrea bohemica

Baniaspis

Holocystites scutellatus

Pragamira

Baragwanathia

Holopea

Pragamira perlonga

Baragwanathia longifolia

Holopea applanata

Pragnellia

Barbarorthis

Holopea elizabethi

Pranognathus

Barbarorthis laurentina

Holopea filosus

Pranognathus siluricus

Barbarorthis porkuniensis

Holopea gigantea

Prantlia

Barbatulella

Holopea gracia

Prasopora

Barrandecirrus

Holopea guelphensis

Pregazacrinus

Barrandecirrus filiformis

Holopea hubbardi

Preodontochile

Barrandella

Holopea latens

Preodontochile springfieldensis

Barrandella kindlei

Holopea media

Pribylograptus

Barrandeocarpus

Holopea nicolettensis

Primaspis

Barrandeoceras

Holopea obsoleta

Primaspis evoluta

Barrandeocrinus

Holopea rossbrookiensis

Primitia

Barrandeograptus

Holopea scalariforme

Primitia lativia

Barrandeolites

Holopea symmetrica

Primitia osloensis

Barrandina

Holopea transversa

Primitiella

Bassipterus

Holopella

Primitiopsis

Basslerites

Holopella expandens

Prioniodina

Batenevia

Holopella gracilior

Prioniodina excavata

Bathyurus

Holopella jovialis

Prioniodus

Batocara

Holopella modesta

Prionocheilus

Batostoma

Holopella parvula

Prionocheilus obtusus

Batostoma gracilis

Holopella regularis

Prionopeltis

Batostoma winchelli

Holopella teres

Priscosolenia

Batostomella

Holophragma

Priscosolenia aliena

Baturria

Holophragma calceoloides

Priscosolenia perarmata

Bdellacoma

Holorhynchus

Priscosolenia prisca

Bdellacoma vermiformis

Holorhynchus giganteus

Prisochiton

Beatricea nodulosa

Holotrachelus

Pristeroceras

Beatricea undulata

Holotrachelus punctillosus

Pristiograptus

Becscia

Holtedahlina

Pristognathus

Becscia carletona

Holtedahlina paraprostrata

Pristognathus bighornensis

Becscia scissura

Holtedahlina sinica

Probillingsites

Becsciecrinus

Holtedahlina suedica

Proboscina

Becsciecrinus adonis

Holtedahlina sulcata

Proboscisambon

Becsciecrinus groulxi

Holtedahlina varsensis

Procarinaria

Beecheroscapha

Homalaspidella borealis

Procarinaria zephyrina

Beecheroscapha bispinosa

Homalonotus

Procarinatina

Beitaia

Homocrinus

Procatenipora

Bekkeromena

Homocrinus parvus

Procephalaspis

Belemnospongia

Homocystites

Proclimacograptus

Belemnospongia epiradiatus

Homoeospira

Proclimacograptus angustatus

Belenopyge

Homoeospira baylei

Proconchidium

Bellerophon

Homoeospira evax

Proconchidium brodeurensis

Bellerophon havliceki

Homoeospira fiscellostriata

Proconchidium munsteri

Bellerophon ledburiensis

Homoeospirella

Prodarwinia

Bellerophon miser

Homoeospirella multicostata

Productorthis

Bellerophon scaber

Homotrypa

Productorthis aculeata

Bellerophon shelbiensis

Homotrypa anticostiensis

Productus

Bellerophon solitarius

Homotrypa niagarensis

Proetus

Belodella

Homotrypella

Proetus (Bohemiproetus) magnicerviculus

Belodella cooperi

Hoplolichas furcifer

Proetus (Gerastos) subcarinatus

Belodella resima

Horderleyella

Proetus (Gerastos) sugiharensis

Belodella silurica

Horderleyella fragilis

Proetus (Proetus) subovalis

Belodina

Horiostomella

Proetus ainae

Belodina compressa

Horiostomella otiosa

Proetus alaricus

Belodina confluens

Hormocrinus

Proetus concinnus

Beloitoceras

Hormocrinus quebecensis

Proetus interjectus

Beloitoceras amoenum

Hormotoma acuminata

Proetus latifrons

Beloitoceras bucheri

Hormotoma antigonishensis

Proetus scoticus

Belonechitina

Hormotoma articulata

Proetus simus

Belubulaia

Hormotoma centervillensis

Progalerus

Belubulaia packhami

Hormotoma concinnus

Proheliolites

Bembexia

Hormotoma funata

Prokopicrinus

Bembicosoma

Hormotoma gigantea

Promelocrinus

Bembicosoma pomphicus

Hormotoma gracilis

Promissum

Beraunia

Hormotoma grayiana

Promissum pulchrum

Beraunia bifrons

Hormotoma insignis

Promopalaeaster

Beraunia bohemica

Hormotoma latifasciatum

Promopalaeaster granulosus

Beraunia carens

Hormotoma meyendorfi

Promopalaeaster wykoffi

Beraunia detersa

Hormotoma piperi

Promourlonia

Beraunia docens

Hormotoma rudis

Promourlonia ambiqua

Beraunia elliptica

Hormotoma tenuifilosa

Promourlonia biformis

Beraunia indocilis

Hormotoma teretiformis

Promourlonia durhamensis

Beraunia placida

Hormotoma winnipegensis

Promourlonia furcata

Beraunia querenda

Horologium

Proparaparchites

Beraunia severa

Horologium kokeni

Propora

Beraunia verna

Hostimex

Proromma

Berolinella

Hostinella

Proromma bregmops

Berouniconcha

Howella

Proschizophoria

Berouniconcha filosum

Howellella

Prosolarium

Berouniconcha hesione

Howellella anglica

Prosolarium crenulata

Bessazoon

Howellella crispa

Prosolarium deiopei

Bessazoon gibbae

Howellella elegans

Prosolarium dominus

Besselodus

Howellella porcata

Prosolarium duslii

Besselodus borealis

Howellella subinsignis

Prosolarium halei

Bevocastria

Howellites

Prosolarium incumbens

Bevocastria conglobata

Howellites aenigmus

Prosolarium limata

Beyrichia

Huddlella

Prosolarium procerum

Beyrichidiscus

Hudsonaster

Prosolarium scalatum

Beyrichidiscus fecundatus

Hudsonaster incomptus

Prosolarium striatissima

Bicarina

Hudsonaster rugosus

Prosoptychus

Bicarina petilitornata

Hudsonospongia

Prosoptychus globulus

Bickmorites

Hudsonospongia cyclostoma

Prosoptychus projectus

Bicrenucula

Hughmilleria

Prosoptychus rotunda

Bicrenucula elegans

Hughmilleria wangi

Prosoptychus sibiricus

Bicuspina

Huronia

Prosoptychus sphaera

Biernatia

Huroniella

Prosoptychus wenlockensis

Biernatia curvata

Hustedograptus

Prostrix

Biernatia plana

Hustedograptus teretiusculus

Protactis

Bigalea aviformis

Huttagraptus

Protactis wenlockensis

Bighornia

Huttagraptus acinaces

Protanastrophia

Bikocrinus

Huttoniella

Protanastrophia indistincta

Billevittia

Hyalostelia

Protanastrophia repanda

Billevittia adraini

Hyattidina

Protarabellites

Billingsites anticostiensis

Hyattidina congesta

Protaraea

Billingsites canadensis

Hyolithes

Protaraea diffluens

Billingsites manitoulinense

Hyperammina

Protaraea procella

Bimuria

Hypodicranotus

Protaraea richmondensis

Bimuria popovi

Hypsiptycha

Protaster

Bingeria

Hypsiptycha anticostiensis

Protaster sedgwickii

Biparetis

Hypsiptycha argenturbicum

Protaster stellifer

Biparetis caledonia

Hypsiptycha janea

Protathyris

Biparetis paucirugosus

Hypsiptycha neenah

Protatrypa

Birkenia

Hypsiptycha occidens

Protatrypa malmoeyensis

Birksfeldia

Hyrokybe

Protatrypa thorslundi

Birksfeldia circumplicata

Hyrokybe canadensis

Protaxocrinus

Birmanites

Hyrokybe copelandi

Protaxocrinus paraios

Bisulcata

Hyrokybe hadnagyi

Protaxocrinus sideros

Bitrigonocardia

Hyrokybe julli

Proteoceras

Bitrigonocardia diptera

Hyrokybe lenzi

Proteocystites hispanica

Bitrigonocardia elegantula

Hysterolites

Proteorthis

Bitrigonocardia isbergi

Hystrichopsydrax

Protobactrites

Blakeoceras

Hystrichopsydrax sandersi

Protocerauroides

Bleshidium

Hystricoceras

Protochonetes

Bleshidium patellinum

Hystricoceras astraliformis

Protochonetes elyensis

Bobellis

Hystricoceras lundgreni

Protochonetes harricanensis

Bobellis oliveri

Hystricoceras spinosum

Protochonetes ludloviensis

Bodacrinus

Ibanocrinus

Protochonetes minimus

Bodacrinus columnus

Iberomena

Protochonetes piltenensis

Bodophyllum

Ichiyamella

Protochonetes striatellus

Bodophyllum osmundense

Ichiyamella subglobula

Protocortezorthis

Bodospira

Ichthyocrinus

Protocrisina

Bodospira kallholniensis

Icriodella

Protocrisina exigua

Bodospira undulata

Icriodella deflecta

Protocyathactis

Bohemograptus

Icriodus

Protocycloceras

Bohemograptus bohemicus

Icriognathus

Protocytidium

Bohemoharpes

Icriognathus cornutus

Protocytidium elliottae

Bohemoharpes naumanni

Icthyocrinus

Protokionoceras

Bohemoharpes ovatus

Iddingsella

Protokionoceras fessicancellatum

Bohemoharpes ungula

Idioglyptus

Protoleptostrophia

Bohemoharpes vittatus

Idioglyptus stigmatus

Protomegastrophia

Bohemoharpes wilkensii

Idiospira

Protomegastrophia semiglobosa

Boiotremus

Idiostroma

Protomya

Boiotremus beraunensis

Ikella

Protopanderodus

Boiotremus caelatus

Ildraites

Protopanderodus liripipus

Boiotremus distans

Ilionia prisca

Protophragmoceras

Boiotremus incipiens

Illaenoides

Protophragmoceras erskinei

Boiotremus kosovensis

Illaenoides abnormis

Protophyllum

Boiotremus longitudinalis

Illaenoides magnisulcatus

Protopilophyllum

Bolbibollia

Illaenoscutellum

Protoscolex

Bolbineossia

Illaenoscutellum platiceps

Protospongia

Bolbiprimitia

Illaenus

Protospongia columbiana

Bolbozoe

Illaenus (Parillaenus) dalecarlicus

Protospongia conica

Bolicrinus

Illaenus (Parillaenus) roemeri

Prototaxites

Bollia

Illaenus avus

Protozeuga

Bonnemaia

Illaenus dalecarlicus

Protozeuga bicarinata

Boreadorthis

Illaenus linnarssoni

Protozyga

Boreadorthis sadewitzensis

Illaenus oviformis

Protrochiscolithus

Borealarges

Illionia

Proturritella

Borealarges bucklandii

Ilmarinia

Proturritella historicum

Borealarges calei

Ilmarinia ponderosa

Psarodictyum

Borealarges fritillus

Imbricatoceras

Psarodictyum attenuatum

Borealarges mikulicorum

Imbricatoceras subundulatum

Pseudamplexus

Borealarges morrisoni

Imbricatocoelia

Pseudaristocystis

Borealarges nicoae

Imperatoria irregularis

Pseudoamplexus

Borealarges patulus

Imperatoria media

Pseudobelodella

Borealarges reedi

Imperatoria mega

Pseudobelodella silurica

Borealarges renodis

Imperatoria minima

Pseudobelodina

Borealarges simplex

Indaclor

Pseudobelodina dispansa

Borealarges tuckerae

Indaclor sellarius

Pseudobelodina vulgaris

Borealarges variabilis

Innapora

Pseudobirmanites

Borealarges warholi

Inocaulis

Pseudocheirurus

Borealarges yulei

Insignia

Pseudocheirurus gomiensis

Borealaspis

Insolitignum

Pseudoclimacograptus

Borealaspis numitor

Insolitignum dissimile

Pseudocolpomya

Borealis

Interproetus

Pseudocolpomya elongata

Borealis cristiformis

Intexodictyon

Pseudocolpomya miseneri

Borelasma

Intexodictyon avitum

Pseudocolpomya modioliformis

Borelasma crassitangens

Intexodictyon confertum

Pseudoconchidium

Borisella

Intexodictyon laurenticum

Pseudoconchidium kozhimicum

Borkopleura

Intexodictyon olevi

Pseudocrinites

Bothriocidaris

Intexodictyon perplexum

Pseudocryptaenia

Botryocrinus

Inversoceras

Pseudocryptaenia lahuseni

Boucotides

Iocrinus

Pseudocryptophyllum

Boucotinskia

Iowacystis

Pseudocycloceras

Boucotinskia elongata

Iranospirifer

Pseudocyrtodonta

Boucotinskia sulcata

Iranospirifer qarabilensis

Pseudocyrtodonta obtusa

Boucotspira fimbriata

Iridistrophia

Pseudoduyunaspis

Boucotspira lamellosus

Isbergia

Pseudoduyunaspis bachuensis

Boucotspira wisbyensis

Isbergia planifrons

Pseudoentomozoe

Bouskacrinus

Ischadites

Pseudofletcheria

Bowanophyllum

Ischnacanthus

Pseudogygites

Bowanophyllum ramosum

Ischnacanthus kingi

Pseudohornera

Brachiospongia

Ischyrinia

Pseudohornera diffusa

Brachyaspis

Ischyrinia winchelli

Pseudohornera orosa

Brachyaspis alacer

Ischyrodonta

Pseudoimperatoria

Brachyaspis leptaenarum

Ischyrodonta manitoulinensis

Pseudoimperatoria media

Brachyelasma estonicum

Ischyrodonta unionoides

Pseudoimperatoria minima

Brachymimulus

Isfarispira

Pseudolabechia

Brachyopterella

Isfarispira perlata

Pseudolancicula

Brachyopterus

Isfarispira septata

Pseudolancicula exigua

Brachyprion

Isiola

Pseudoleda

Brachyprion (Brachyprion) semiglobosa

Isochilina

Pseudolingula

Brachyprion (Eomegastrophia) philomena

Isocolus

Pseudolonchodina

Brachyprion (Erinostrophia) walmstedti

Isocolus sjogreni

Pseudolonchodina expansa

Brachyprion (Protomegastrophia) profunda

Isorophus

Pseudomendacella

Brachyprion arenaceus

Isorophus austini

Pseudomeristina

Brachyprion attenuata

Isorophusella

Pseudomonoclimacis

Brachyprion compressa

Isorophusella gutii

Pseudoniscus

Brachyprion kurzemensis

Isorthis

Pseudooneotodus

Brachyprion leda

Isorthis (Arcualla) arcuaria

Pseudooneotodus beckmanni

Brachyprion robustus

Isorthis (Arcualla) boreaina

Pseudooneotodus bicornis

Brachytomaria

Isorthis (Arcualla) microscapha

Pseudooneotodus boreensis

Brachytomaria kindlei

Isorthis (Ovalella) arndellensis

Pseudooneotodus coniformis

Brachytomaria papillosa

Isorthis (Ovalella) mackenziei

Pseudooneotodus linguicornis

Brachytomaria semele

Isorthis (Ovalella) natiscotekia

Pseudooneotodus mitratus

Brachytomaria turricula

Isorthis crassa

Pseudooneotodus tricornis

Bracteoleptaena

Isorthis loveni

Pseudopachydictya

Brahmacrinus

Isorthis mediocra

Pseudophaulactis

Brevibelus

Isorthis parvulus

Pseudopholidops

Brevibelus breviformis

Isorthis slitensis

Pseudophorus

Brevilamnulella

Isorthoceras

Pseudophorus cavus

Brevilamnulella kjerulfi

Isorthoceras curvilineatum

Pseudophorus profundus

Brevilamnulella laevis

Isorthoceras dalecarlense

Pseudophorus stuxbergi

Brevilamnulella thebesensis

Isorthoceras elongatocinctum

Pseudopilophyllum

Brevilamnulella umbosulcata

Isorthoceras junceum

Pseudopilophyllum elegestum

Breviseptum

Isorthoceras sociale

Pseudoplasmopora

Briantelasma

Isorthoceras suave

Pseudoplegmatograptus

Brianurus

Isorthoceras subcostatum

Pseudoporefieldia

Brianurus jeffersoni

Isorthoceras wahlenbergi

Pseudoporefieldia micella

Brockocystis

Isospira

Pseudoproetus

Brockocystis nodosaria

Isospira lepida

Pseudoprotathyris

Broeggeria

Isospira reticulata

Pseudoprotathyris infantilis

Brongniartella

Isotelus

Pseudorayella

Brongniartella platynota

Isotelus gigas

Pseudoretiolites

Brongniartella robusta

Isotelus maximus

Pseudorthograptus

Bronteopsis

Isotelus megistos

Pseudosphaerexochus

Bronteopsis concentrica

Isovella

Pseudosphaerexochus cancrura

Brooksina

Istorinus

Pseudosphaerexochus conformis

Bryantodina

Istorinus erectus

Pseudosphaerexochus granulatus

Bubovicus

Ivanopleura

Pseudosphaerexochus roemeri

Bubovicus tarda

Ivoechiton

Pseudostylodictyon

Bucanella

Jahnia

Pseudotectus

Bucania

Jahnia pelmen

Pseudotectus comes

Bucania bellapuncta

Jamoytius

Pseudotupolichas

Bucania groenlandica

Janeia

Pseudotupolichas chicagoensis

Bucania robusta

Janicula

Pseudotupolichas ornatus

Bucania simulatrix

Janicula potens

Pseudulrichia

Bucania squamosus

Janiomya

Psiloconcha grandis

Bucania stephnae

Janius

Psiloconcha sinuata

Bucania stigmosa

Janius barrandi

Psiloconcha subovalis

Bucanopsis

Janius exsul

Psilokirkbyella

Bucanopsis gemma

Janius nobilis

Psilokirkbyella prominens

Bucanopsis latevittatus

Janius occidentalis

Pteraspis

Bucanopsis trisinuata

Janussenia

Pterinea

Bucanopsis volgulica

Janussenia orangense

Pterinea demissa

Bucanospira

Japonoscutellum

Pterinea mclearni

Bucanospira expansa

Japonoscutellum geniculatum

Pterinea prolifica

Bucanospira tuba

Japonoscutellum japonicum

Pterinea waylandsmithi

Buchiola

Japonoscutellum tunidum

Pterinopecten

Bucucrinus

Jarovathyris

Pterochitina

Bucucrinus isotaloi

Jeppssonoceras

Pteronitella

Bucucrinus saccus

Jeppssonoceras concentratum

Pteronites

Buffalopterus

Jezercia

Pterophrentis

Bulbosohnia

Jezercia rongi

Pteropora

Bulbosohnia bolboformis

Jezercia wrighti

Pteropora pennula

Bullatella

Jifarahpora

Pterospathodus

Bumastoides

Jifarahpora libyensis

Pterospathodus amorphognathoides

Bumastus

Jingshanella

Pterospathodus celloni

Bumastus (Bumastella) aspera

Jingshanella surculosa

Pterospathodus eopennatus

Bumastus (Bumastella) bipunctatus

Jinonicella

Pterospathodus pennatus

Bumastus (Bumastella) spiculus

Jinonicella kolebabai

Pterospathodus rhodesi

Bumastus (Bumastus) glomerosus

Johntempleia

Pterospermella

Bumastus (Bumastus) subquadratus

Johntempleia pamae

Pterotheca anticostiana

Bumastus agmakros

Joldagiroceras

Pterotheca avirostris

Bumastus barriensis

Joldagiroceras gyratum

Pterotheca hispanica

Bumastus cuniculus

Joleaudella

Pterotheca mullochensis

Bumastus dayi

Joleaudella mansuyi

Pterotheca multidecorata

Bumastus graftonensis

Joleaudella perstriatus

Pterotheca trimerelloides

Bumastus insignis

Joleaudella yimgantauensis

Pterygometopus

Bumastus ioxus

Jolvia

Pterygometopus schmidti

Bumastus kattoi

Jonesea

Pterygometopus sclerops

Bumastus niagarensis

Jonesea cocksi

Pterygotus

Bumastus nudus

Jonesea grayi

Ptilillaenus

Bumastus orbicaudatus

Jonesea undulata

Ptilodictya

Bumastus sakoi

Jonesella

Ptilodictya bifurcata

Bumastus tenuis

Jonesina

Ptilodictya canadensis

Bumastus vulsus

Jonesites

Ptilodictya ensiformis

Bunodes

Jovacrinus

Ptilodictya flabellata

Burmeisteria

Jovacrinus clarki

Ptilodictya flagella

Bursachitina

Jovacrinus jugum

Ptilodictya gladiola

Buskopora

Jovacrinus spinosus

Ptilodictya lanceolata

Buthotrephis

Jovellania

Ptilodictya sulcata

Buthotrephis gracilis

Joviatrypa

Ptilograptus

Butovicella

Joviatrypa brabyla

Ptiloncodus

Butovicella migrans

Juanognathus

Ptiloporella

Byronoceras

Jugiaster

Ptilotrypa

Byrsolopsina

Jugiaster speciosus

Ptomaspis

Byssonychia borealis

Juglandocrinus

Ptomaspis canadensis

Byssonychia grandis

Juglandocrinus sdzuyi

Ptychocaulus

Byssonychia radiata

Jujuyops

Ptychocaulus bivittata

Byssonychia richmondensis

Junggarella

Ptychocrinus

Byssonychia vera

Jupiterella

Ptychocrinus mullochillensis

Bythocypris

Jupiterella eumorpha

Ptychoglyptus

Bythocypris cylindrica

Kailia

Ptychoglyptus ingenuus

Bythopora

Kailia (Parakailia) lata

Ptychomphalina

Bythotrephis

Kailiceras

Ptychomphalina inexpectata

Cadudium

Kalimnasphaera

Ptychomphalina regulosa

Caesariella

Kalpinolepis

Ptychophyllum

Calamopora alveolaris

Kalpinolepis tarimensis

Ptychopleurella

Calapoecia

Kamaena

Ptychopleurella angulaticostata

Calapoecia coxi

Kampella

Ptychopleurella bouchardi

Calapoecia huronensis

Kampella guttula

Ptychopleurella emarginata

Calathium

Kanabinocrinus

Ptychopleurella erecta

Calcaribeyrichia

Kannathalepis

Ptychopleurella lamellosa

Calceocrinus

Kannathalepis milleri

Ptychopleurella lenzi

Calceocrinus gamachicus

Karlicium

Ptychopleurella mediocostata

Calipernurus

Kaseiella

Ptychopleurella multicostata

Calliocrinus

Kaseiella laudabilis

Ptychopleurella transversa

Calliops

Kassinella

Ptychopleurella twenhofeli

Callipentamerus

Kassinella (Kassinella) shiyangensis

Ptychopleurella uniplicata

Callocystites

Kassinella anisa

Ptychopteria

Callograptus

Kastorcrinus

Ptychosphaera

Calloporella

Kastorcrinus chattertoni

Ptychosphaera carinata

Calloporella harrisi

Katastrophomena

Ptychosphaera constricta

Calloporina

Katastrophomena (Costistrophomena) magna

Ptychosphaera ouralicus

Calocyrtoceras

Katastrophomena (Katastrophomena) penkillensis

Ptychospirina

Calocyrtocerina

Katastrophomena antiquata

Ptychospirina senaria

Calophyllum amalloides

Katastrophomena maxima

Ptyocephalus

Calostylis

Katastrophomena modesta

Punctacheilinella

Calostylis concavifundatus

Katastrophomena parvicardinis

Punctacheilinella macropunctata

Calostylis luhai

Katastrophomena penkillensis

Punctatisporites

Calpichitina

Katastrophomena radiireticulata

Punctoprimitia

Calycocoelia

Katastrophomena scabrosa

Pustulocystis

Calycocoelia micropora

Katastrophomena scotica

Pustulocystis ornatissimus

Calycocoelia typicalis

Katastrophomena woodlandensis

Pustulocystis pentax

Calymene

Katastrophomena zheganensis

Pycnactis

Calymene ansensis

Katoporodus

Pycnactoides

Calymene barnesi

Katoporodus timanicus

Pycnocrinus

Calymene blumenbachi

Kayatia

Pycnodictyon

Calymene blumenbachii

Kayoceras

Pycnolithus

Calymene breviceps

Kayserella

Pycnomphalus

Calymene celebra

Kenophyllum

Pycnomphalus acutus

Calymene clavicula

Kenostrychus

Pycnomphalus colemani

Calymene frontosa

Kenostrychus clementsi

Pycnomphalus concurrens

Calymene gamachei

Kentronetes

Pycnomphalus helicites

Calymene hadyardensis

Kenzieana

Pycnomphalus immaturus

Calymene latigenata

Kenzieana cardiopsis

Pycnomphalus inflatus

Calymene mimaspera

Ketophyllum

Pycnomphalus obesus

Calymene minimarginata

Kettneraspis

Pycnomphalus placidus

Calymene nasuta

Kettneraspis copelandi

Pycnosaccus

Calymene niagarensis

Kettneraspis ramskoeldi

Pycnostylus

Calymene nowlani

Kettneraspis wrightae

Pycnotrochus

Calymene orthomarginata

Kettnerites

Pycnotrochus christiei

Calymene polgari

Khalfinaea

Pycnotrochus prosper

Calymene retrorsa

Kiaeria

Pycnotrochus viator

Calymene ubitquitosus

Kiaeromena

Pygodus

Calymenella

Kiaeromena (Kiaeromena) grandis

Pygolfia

Calymenella bayani

Kiaeromphalus

Pygolfia nina

Calyptaulax

Kiaeromphalus kristianiensis

Pyrenomoeus cuneatus

Calyptaulax glabella

Kiaeromphalus undiferus

Pyrgocystis

Camarotoechia

Kiaeropterus

Pyrgocystis cylindrica

Camarotoechia bimesiornata

Kiangsuaspis

Pyrgocystis sulcata

Camerella

Kiesowia

Pyrgocystis varia

Cameroceras

Kiesowia dissecta

Qianbeilites

Cameroceras regulus

Kinaschukoceras

Qianomena

Cameroceras turrisoides

Kindleoceras

Qianomena costata

Campograptus

Kindleoceras reversatum

Qianomena unicosta

Campograptus harpago

Kindleoceras triangulare

Qilianotryma

Campograptus lobiferus

Kinnella

Qilinyu

Campophyllum

Kinnella laurentiana

Qilinyu rostrata

Camptodictyon

Kinnella medlicotti

Quadricarina

Camptodictyon penefastigiatum

Kionelasma

Quadricarina attava

Camptolithus

Kionoceras

Quadricarina cancellata

Canistrocrinus

Kionoceras coralliforme

Quadricarina glandiformis

Canistrocrinus richardsoni

Kionoceras doricum

Quadricarina humillima

Canistrocrinus typus

Kionoceras magnisulcatum

Quadricarina scutulata

Cannapora

Kionoceras muyagirum

Quadricollina

Cantrillia

Kionoceras virgatum

Quasiaulacera

Capelliniella

Kirkbyella

Quasiaulacera occidua

Capnophyllum

Kirkidium

Quasistrophonella

Capulus

Kirkidium knighti

Quepora

Capulus haliotis

Kirkidium sculptum

Quinquecosta

Carabocrinus

Kirkirhynchus

Rabuloproetus

Carcinosoma

Kirkirhynchus reesidei

Radiaspis

Carcinosoma scoticus

Kirkospira

Radiastrea

Cardavia

Kirkospira glacialis

Radiatodonta

Cardavia cathleenae

Kirkospira tongassensis

Radiolichas

Cardavia hafi

Kirkospira vitellia

Radiolichas davedaviesi

Cardavia stefani

Kitakamiia

Radiolichas guttatus

Cardiola

Kjaerina

Radiolichas raydaviesi

Cardiola bohemica

Kjaerina orvikui

Radiotrypa

Cardiola conformis

Kjaerina poljensis

Radiotrypa gothica

Cardiola donigala

Kjerulfina

Radiurus

Cardiola geminans

Klakesia

Radiurus adraini

Cardiola nina

Klamathastraea

Radnoria

Cardiola signata

Klamathastraea dilleri

Radnoria carlsi

Cardiolinka

Kloedenella

Radnoria humillima

Cardiolita bohemica

Kloucekia

Radnoria syrphetodes

Cardiolita conformis

Kobayashiconcha consolans

Rafanoglossa

Cardiolopsis

Kochoceras

Rafinesquina

Cardium

Kochoceras cuneiforme

Rafinesquina alternata

Carinaropsis

Kockelella

Rafinesquina latisculptilis

Carinophyllum

Kockelella amsdeni

Rafinesquina mesicosta

Carmon

Kockelella corpulenta

Rafinesquina mucronata

Carnalpia

Kockelella manitoulinensis

Rafinesquina percensis

Carneyella

Kockelella ortus

Rafinesquina ponderosa

Carniodus

Kockelella patula

Rafinesquina pseudoloricata

Carniodus carnulus

Kockelella ranuliformis

Rafinesquina relicua

Carpocrinus

Kockelella stauros

Rafinesquina stropheodontoides

Carpospongia

Kockelella variabilis

Rafinesquina ultrix

Carpospongia castanea

Kockelella walliseri

Rafinesquina urbicola

Carpospongia globosa

Kockelellamecdup

Rakverella

Caryocaris

Kodonophyllum

Rakverina

Caryocaris cedarbergensis

Kodymites

Rakverina oanduensis

Caryocrinites

Kodymites vulcanus

Ralfina

Caryocrinites ornatus

Koigia

Ralfinella

Caryocystites

Kokenospira

Ramochitina

Caryocystites thorslundi

Kokenospira credibilis

Ramphoprion

Caryogyps

Kokomopterus

Raphiophorus

Caryogyps chattertoni

Kolihaia

Raphispira

Caryogyps grayi

Kolymopora

Raphispira plena

Caryospongia

Kometia

Raphistoma

Caryospongia tuberosa

Kometia cruciformis

Raphistomina

Casiogrammus

Kooptoonocrinus

Rasmussenoceras

Casiogrammus ichthyeros

Kopaninoceras

Rastrites

Cassowarioides

Kopaninoceras dorsatoides

Ravozetina

Cassowarioides anisomorpha

Kopaninoceras thyrsus

Ravozetina honorata

Cassowarioides perryi

Koremagraptus

Raymondella

Cassowarioides polgari

Kosoidea

Receptaculites

Castellaroina

Kosovina

Recilites

Castellaroina fascifer

Kosovina peeli

Recilites sylvestris

Castellaroina telimelensis

Kosovoceras

Rectalloides

Cataschisma

Kosovopeltis

Rectella

Cataschisma nitida

Kosovopeltis allaarti

Rectigrewingkia

Catatonocrinus

Kosovopeltis andersoni

Rectigrewingkia anthelion

Catazone

Kosovopeltis angusticostata

Rectograptus

Catazone apate

Kosovopeltis insularis

Rectograptus abbreviatus

Catazone argolis

Kozelconcha

Rectograptus amplexicaulis

Catazone changningensis

Kozelconcha lipara

Rectograptus peosta

Catazone cingulata

Kozelconcha obesa

Rectograptus truncatus

Catazone compressa

Kozlenia

Redstonia

Catazone cuneus

Kozlowskiellina

Redstonia buskasi

Catazone demidoffi

Kozlowskiellina deltidialis

Redstonia tercierae

Catazone latona

Kozlowskiellina strawi

Redstonia visbyensis

Catazone podolica

Kozlowskites

Reedops

Catazone robustula

Kozlowskites gracilis

Remopleurides

Catazone styloidea

Krameriella

Remopleurides emarginatus

Catazyga

Krameriella hornyi

Remopleurides minimus

Catazyga anticostiensis

Krausella

Remopleurides nikolaiseni

Catazyga cartieri

Krinocrinus

Renalcis

Catazyga headi

Ktenoura

Replicoskenidioides

Catenipora

Kukersella

Resserella

Catenipora approximata

Kukersella borealis

Resserella basalis

Catenipora arctica

Kullervo

Resserella canalis

Catenipora capilliformis

Kullervo complectens

Resserella elegantula

Catenipora clausa

Kulumbella

Resserella matutina

Catenipora copulata

Kulumbella xacta

Resserella praeclara

Catenipora crassaeformis

Kungejophyllum

Resserella sabrinae

Catenipora distans

Kungejophyllum ajagusensis

Reteocrinus

Catenipora elegans

Kuresaaria

Reteograptus

Catenipora escharoides

Kurnamena rugosoides

Reteograptus geinitzianus

Catenipora exilis

Kylixocrinus

Reteporina

Catenipora gotlandica

Kyphophyllum

Reticularia

Catenipora maxima

Kyphophyllum greggi

Reticulariopsis

Catenipora panga

Kyphophyllum schmidti

Reticulatrypa

Catenipora robusta

Kyreocrinus

Reticulograptus

Catenipora rubraeformis

Labechia

Retiolites

Catenipora septosa

Labechia conferta

Retiolites geinitzianus

Catenipora tapaensis

Labechia huronensis

Retipilina

Catenipora vespertina

Labechia prima

Retipilina knighti

Catenipora workmanae

Labechiella

Retisacculus

Cathaysiorthis

Labechiellata

Retizitteloceras

Cathaysiorthis enorme

Labechiina

Retizitteloceras rarum

Cathaysiorthis xichuanensis

Labechiina arguta

Retrorsirostra

Cathaysiorthis yushanensis

Labyrinthites

Retrorsirostra carleyi

Cauliculospongia

Labyrinthodictyon

Retusotriletes

Cauliculospongia solida

Labyrinthodictyon angulosum

Retziella

Cavellina

Labyrinthosphaera

Reuschella

Cekovia

Labyrinthosphaera macdonaldi

Reuschella inexpectata

Celtencrinurus

Laccoprimitia

Reuschia

Centrifugus

Laceripora

Revalotrypa

Centrifugus planorbis

Lacunoporaspis

Revalotrypa honguedensis

Centrifugus procera

Ladacrinus

Reveroides

Cephalograptus

Ladacrinus asynaptos

Reversocypris

Ceramophylla

Laeogyra

Rexroadus

Ceramopora

Laeogyra arvetensis

Rexroadus kentuckyensis

Ceramopora berzelli

Laeogyra gracilis

Rexroadus nathani

Ceramopora imbricata

Laevicyphomena

Rhabdelasma

Ceramopora lindstromi

Lagarograptus

Rhabdochitina

Ceramoporella

Lagenammina

Rhabdocyclus

Ceramoporella granulosa

Lageniocrinus

Rhabdoporella

Cerasina

Lagenochitina

Rhabdoporella catenularia

Cerasina antiquata

Lalax bouchardi

Rhabdoporella glomerata

Cerasina discoidalis

Lambeoceras

Rhabdostropha

Ceratiocaris

Lambeoceras baffinense

Rhabdostropha cancellata

Ceratocephala

Lambeoceras nudum

Rhabdostropha grindrodii

Ceratocephala goniata

Lambeophyllum

Rhabdostropha leijiatunensis

Ceratocephala impedita

Lamellaeoporella

Rhabdostropha minuta

Ceratocephala laticapitata

Lamelliconchidium

Rhabdostropha quinquecincta

Ceratocephalina

Lamelliconchidium micropleura

Rhabdotetradium

Ceratoikiscum

Lamontopterus

Rhabdotetradium frutex

Ceratopea

Lampadosocrinus

Rhactomena

Ceratopsis

Lamprophyllum

Rhactorthis

Ceratotheca

Lamproscutellum

Rhaphanocrinus

Ceraurinella

Lampterocrinus

Rhaphidograptus

Ceraurinus

Lanarkia

Rhaphidograptus toernquisti

Ceraurinus daedalus

Lanarkia horrida

Rhaphidophyllum

Ceraurinus icarus

Lanarkopterus

Rhaphistoma vaurealense

Ceraurinus marginatus

Lanceolatites

Rhapidophyllum

Cerauromeros

Lanceomyonia

Rhaxeros

Cerauromeros hydei

Langeites

Rhegmaphyllum

Ceraurus

Lanthanaster

Rhenopyrgus

Ceriaster

Lanthanaster cruciformis

Rhenopyrgus piojoensis

Chabakovia

Lapworthura miltoni

Rheocrinus

Chaetetes

Lasanius

Rheocrinus aduncus

Chaetetipora

Lasiograptus

Rhinidictya

Chaetetipora ellesmerensis

Lateranicrinus

Rhinocarcinosoma

Chaetocladus

Lateranicrinus saintlaurenti

Rhinocarcinosoma dosonensis

Chaetosalpinx

Laticrura

Rhinopora

Chamishaella

Laticrura erecta

Rhinotreta

Changxingaspis

Latiproetus

Rhinotreta muscularis

Changxingaspis gui

Laurelocrinus

Rhipidium

Chaosocrinus

Laurieipterus

Rhipidium tenuistriatum

Charactoceras

Laurieipterus elegans

Rhipidognathus

Charactoceras baeri

Laurucrinus

Rhipidognathus symmetricus

Charactoceras cinereum

Laurucrinus sandtopensis

Rhipidomella

Charactoceras hercules

Leangella (Leangella) america

Rhipidomella acutisulcata

Charactoceras kallholnense

Leangella (Leangella) longae

Rhipidomella henryhousensis

Charactoceras raettvikense

Leangella (Leangella) scissa

Rhipidomella oklahomensis

Charactoceras triangulum

Leangella (Leangella) segmentum

Rhipidomella subtriangularis

Charactocrinus

Leangella cylindrica

Rhipidomena

Charactocrinus billingsi

Leangella scissa

Rhizophylloides

Charactocrinus pustulosus

Leangella triangularis

Rhizophyllum

Charitoxotis

Lecanocrinus

Rhodesispongia

Chasmatopora

Lecanospira

Rhodesispongia simplex

Chasmatopora foerstei

Lechritrochoceras

Rhodesognathus

Chasmatopora hypnoides

Leda elliptica

Rhombifera bohemica

Chasmatopora tenella

Ledopsis

Rhombopora

Chasmops

Leioclema

Rhombopteria

Cheilotrypa

Leiocyamus

Rhombopteria perunicola

Cheilotrypa variolata

Leiofusa

Rhombotrypa

Cheiopteria

Leiomarginata

Rhombotrypa quadrata

Cheiopteria glabra

Leiomarginata simplex

Rhopalocoma

Cheirocrinus

Leiopecten

Rhopalocoma pyrotechnica

Cheirocrinus chrysalis

Leiopteria

Rhynchognathodus

Cheirurus

Leiosphaeridia

Rhyncholepis

Cheirurus clasoni

Leleshusia

Rhynchonella

Cheirurus dilatatus

Leleshusia kiaeri

Rhynchonella exigua

Cheirurus niagarensis

Lenatoechia

Rhynchospirina

Cheirurus patens

Lentitheca

Rhynchotrema

Cheirurus tornquisti

Leolasma

Rhynchotrema fringilla

Chelispongia

Leolasma kaljoi

Rhynchotrema iowense

Chelispongia prima

Leonaspis

Rhynchotrema nutrix

Chelodes

Leonaspis (Acanthalomina) minuta

Rhynchotrema parviseptatum

Chelodes actinis

Leonaspis acarescola

Rhynchotrema perlamellosum

Chelodes bergmani

Leonaspis angelini

Rhynchotrema plicatum

Chenocrinus

Leonaspis centrina

Rhynchotrema pulchellum

Chenocrinus canadaensis

Leonaspis crenata

Rhynchotreta

Chilobolbina

Leonaspis leonhardi

Rhynchotreta americaniformis

Chilobolbina jonesiana

Leonaspis lothiana

Rhynchotreta gracilis

Chilotrypa

Leonaspis marklini

Rhynobolus

Chimaerastella

Leonaspis muldensis

Rhysostrophia

Chiozoon

Leonaspis mutica

Rhytidoceras jovellanum

Chlamydophyllum

Leonaspis olini

Rhytidorhachis

Choanoceras

Leonaspis rattei

Rhytidorhachis guttuliformis

Choia

Leonaspis roemeri

Rhytimya

Chonetes

Leonaspis varbolensis

Rhytimya emma

Chonetoidea obliqua

Lepadocystis

Rhytimya kagawongensis

Chonetoidea radiatula

Leperditella

Rhytiodentalium

Chonophyllum

Leperditia

Rhytistrophia

Christiania

Leperditia caecigena

Richardsonoceras

Christiania dalarnensis

Leperditia glabra

Richardsonoceras sinuososeptatum

Christiania magna

Leperditia manitoulinensis

Richmondoceras

Christiania nilssoni

Lepidactis

Richmondoceras brevicameratum

Christiania portlocki

Lepidactis wenlocki

Richterarges

Chronostrophonella

Lepidaster

Richterarges aquilonius

Chronostrophonella terranova

Lepidaster grayi

Richterarges ethnikos

Chrustenopora

Lepidocentrus

Richterarges facetus

Chrustenopora askeriensis

Lepidocoleus

Richterarges ormistoni

Chuanqianoproetus

Lepidocycloides

Richterarges rolfei

Cicerocrinus

Lepidocycloides baikiticus

Rigbyetia

Cicerocrinus anglicus

Lepidocyclus

Rigbyetia obconica

Cicerocrinus elegans

Lepidocyclus cooperi

Riphaeolites

Cimitaria

Lepidocyclus erectus

Ristnacrinus

Cimitaria liscina

Lepidocyclus laddi

Rivagraptus

Cincinnaticrinus

Lepidocyclus manniensis

Rivularia

Cincinnatidiscus

Lepidocyclus rectangularis

Rizoceras

Cincinnetina

Lepidoleptaena

Rizoceras acris

Cincinnetina meeki

Lepidoleptaena poulseni

Rizoceras inventum

Cincinnetina multisecta

Leptaena

Rizoceras rectum

Cinerocaris

Leptaena (Leptaena) altera

Robergia

Cinerocaris magnifica

Leptaena (Leptaena) bergstroemi

Romingerella

Cinerorthis

Leptaena (Leptaena) depressa

Romingerella estonica

Cingulochitina

Leptaena (Leptaena) haverfordensis

Romingerella major

Circophyllum

Leptaena (Leptaena) purpurea

Romingeria

Cladochonus

Leptaena (Leptaena) rhomboidalis

Romingeria nana

Cladodictya

Leptaena (Leptaena) trifidum

Rongxiella

Cladograpsus linearis

Leptaena (Leptaena) valentia

Ropalonaria

Cladopora

Leptaena (Ygdrasilomena) roomusoksi

Rorringtonia

Cladopora perrara

Leptaena aequalis

Rorringtonia lenis

Cladopora seriata

Leptaena amelia

Rorringtonia scanica

Cladospongia

Leptaena arberae

Rosenella

Cladospongia alaskensis

Leptaena argentina

Rosenella dentata

Clarkeia

Leptaena contermina

Rosenella tuberculata

Clarkeipterus

Leptaena croma

Rostricellula

Clarkeipterus testudineus

Leptaena dejecta

Rostricellula rostrata

Clarkesvillia

Leptaena delicata

Rostricellula subtilicostata

Clathroceras

Leptaena electra

Rostricellula transversa

Clathrochitina

Leptaena gibbosa

Rotalites

Clathrodictyella

Leptaena holcrofti

Rotellomphalus tardus

Clathrodictyon

Leptaena lappa

Rothpletzia

Clathrodictyon adaverense

Leptaena lappina

Rotundites

Clathrodictyon boreale

Leptaena lemniscata

Rotundites rotundus

Clathrodictyon caespitosum

Leptaena limbifera

Roundya

Clathrodictyon clivosum

Leptaena nanaformis

Rozhnovicrinus

Clathrodictyon crickmayi

Leptaena odeon

Rozhnovicrinus isakarae

Clathrodictyon delicatulum

Leptaena oklahomensis

Ruedemannia

Clathrodictyon demissum

Leptaena orhor

Ruedemannia aberrans

Clathrodictyon gregale

Leptaena parvirugata

Ruedemannia borkholmiensis

Clathrodictyon kudriavzevi

Leptaena parvissima

Ruedemannia cognata

Clathrodictyon lennuki

Leptaena poulseni

Ruedemannia crassior

Clathrodictyon lenticulare

Leptaena provellerosa

Ruedemannia holmi

Clathrodictyon mammillatum

Leptaena purpurea

Ruedemannia humilis

Clathrodictyon microundulatum

Leptaena quadrata

Ruedemannia laevissima

Clathrodictyon molense

Leptaena quadrilatera

Ruedemannia lirata

Clathrodictyon plicatum

Leptaena rara

Ruedemannia robusta

Clathrodictyon roseni

Leptaena rhomboidalis

Ruedemannia striatula

Clathrodictyon sinuosum

Leptaena richmondensis

Ruedemannia subrobusta

Clathrodictyon sulevi

Leptaena rugaurita

Ruedemannia tolli

Clathrodictyon turritum

Leptaena sperion

Ruedemannipterus

Clathrodictyon variolare

Leptaena valida

Rufispirifer

Clathrodictyon vesiculosum

Leptaena vellerosa

Rugomena

Clathrodictyon vormsiense

Leptaena zeta

Rugomena planocorrugata

Clathrodictyon zonatum

Leptaena ziegleri

Rugosocyathocrinites

Clathropora

Leptaenisca

Rugosocyathocrinites pauli

Clathrospira

Leptaenisca irregularis

Rugosocyathocrinites sanduskyensis

Clathrospira conica

Leptaenoidea

Rugosocyathocrinites striatissimus

Clathrospira subconica

Leptaenoidea biohermica

Rugosowerbyella

Clavidictyon

Leptaenoidea rugata

Rukhinia

Clavofabella

Leptaenoidea silurica

Rusophycus biloba

Cleidophorus major

Leptelasma

Rutroclypeus

Cleionychia

Leptellina

Ryckholtia

Cleionychia pulchella

Leptellina (Merciella) mackenziensis

Saaremaaspis

Clematocrinus

Leptelloidea

Saarolepis

Clematocrinus ramsbottomi

Leptestiina

Sabella

Clidochirus

Leptestiina prantli

Saccelatia

Clidophorus

Leptobolbina

Sactoceras

Cliefdenella

Leptobolus

Sactoceras hadelandicum

Cliefdenella alaskaensis

Leptobolus insignis

Sactoceras manitoulinense

Cliftonia

Leptocoelia

Sactoceras piso

Cliftonia lamellosa

Leptodesma

Sactorthoceras

Cliftonia obovata

Leptograptus

Sactorthoceras banestanensis

Cliftonia oxoplecioides

Leptopoterion

Saetograptus

Cliftonia psittacina

Leptorima

Saffordophyllum

Cliftonia tubulistriata

Leptorima oehlerti

Saffordotaxis

Climacograptus toernquisti

Leptorima townsendii

Sagenocrinites

Climacospongia

Leptoskelidion

Sagittodontina

Climacospongia snowblindella

Leptoskelidion loci

Sagittodontina robusta

Climacospongia undulata

Leptoskelidion septulosum

Sagittodontus

Clinoclimacograptus

Leptostrophia

Salacorthis

Clinopistha

Leptostrophia antecedens

Salinocrinus

Clintiella

Leptostrophia beechhillensis

Salinocrinus conus

Clintonella

Leptostrophia reedi

Salopia

Clionychia rhomboidea

Leptotrypa

Salopina

Clionychia undata

Leptozone

Salopina brandi

Clisiophyllum

Leptozone esthetica

Salopina conservatrix

Clisospira

Lepyriactis

Salopina delta

Clonocrinus

Lepyriactis nudus

Salopina lunata

Clorilamnulella

Lesueurilla

Salopina pumila

Clorilamnulella osmundsbergensis

Leurocycloceras

Salopina sanjuanensis

Clorilamnulella undata

Leurocycloceras etheridgii

Salopina submedia

Clorinda

Leurocycloceras raymondi

Salopina tubulata

Clorinda parvolinguifera

Leurorthoceras

Salpingostoma canadensis

Clorinda rotunda

Leurotrochoceras

Salpingostoma inornatum

Clorinda superundata

Levenea

Salpingostoma lata

Clorinda tumidula

Levenea canaliculata

Salpingostoma martinssoni

Coccaster

Levenea llandoveriana

Salpingostoma orientalis

Coccaster bulbiferus

Levenea media

Salpingostoma richmondense

Coccoseris

Levenea qianbeiensis

Salpingostoma richmondensis

Coccoseris tumulosus

Levenea rica

Salteraster

Cochlichnus

Levicyathocrinites

Salteraster grandis

Cochlichnus anguineus

Levicyathocrinites sablensis

Salteropterus

Codiacrinus

Levigatella

Salvadorea

Codonocheilus

Lewinia cavernosa

Sampo

Codonocheilus striatum

Lichas

Sampo ruralis

Coelocaulus

Lichas affinis

Sampo transversa

Coelocaulus alceste

Lichas laciniatus

Sandivia

Coelocaulus chlupaci

Lichas menieri

Sanguinolites

Coelocaulus clavata

Lichenalia

Sanguinolites drupa

Coelocaulus columna

Lichenalia concentrica

Sapporipora

Coelocaulus cybele

Lichenaria

Sarcinula

Coelocaulus fugitiva

Lichenocrinus

Sarmatotoxotis

Coelocaulus karlae

Licrophycus

Saucrophyllum

Coelocaulus longispira

Licrophycus hudsonicum

Saughina

Coelocaulus perlonga

Ligiscus

Saughina pertinax

Coelocaulus pollens

Ligiscus smithi

Saukrodictya

Coelocaulus sana

Ligonodina

Savagella

Coelocaulus turritiformis

Ligulalepis

Savagella illinoisensis

Coelocaulus zonaria

Ligulalepis yunnanensis

Scabbardella

Coelocerodontus

Liljevallia

Scabbardella altipes

Coelocerodontus trigonius

Liljevallia amorpha

Scaldianella

Coelochilina

Liljevallia gotlandica

Scalites richmondensis

Coeloclema

Liljevallia vieillensis

Scamnomena

Coelocyclus

Liljevallospira

Scamnomena rugata

Coelocyclus groenlandicus

Liljevallospira elegantulus

Scaphelasma

Coelocyclus novaki

Liljevallospira tubulosa

Scaphelasma mica

Coelocyclus ornatus

Limbatrypa

Scaphorthis

Coelocystis

Lindstroemia

Scenella

Coeloenellina

Lindstroemophyllum

Scenella conica

Coelonella

Lingula

Sceptropora

Coelospira

Lingula (Palaeoglossa) perovata

Sceptropora estoniensis

Coelospira hemispherica

Lingula (Pseudolingula) elegantula

Sceptropora facula

Coelospira nitens

Lingula allingi

Sceptropora florida

Coelospira pusilla

Lingula clintoni

Scharyia

Coelozone

Lingula cuneata

Scharyia heothina

Coelozone verna

Lingula forbesi

Scharyia micropyga

Coenites

Lingula lamellata

Scharyia nympha

Coenites juniperinus

Lingula lata

Scharyia siceripotrix

Colaptomena

Lingula oblata

Schedohalysites

Colaptomena expansa

Lingula ovata

Schellwienella

Coleodus

Lingulapholis

Schistodictyon

Coleolus

Lingulasma

Schizambon

Collarothyris

Lingulella

Schizocrania

Collarothyris canaliculata

Lingulichnus

Schizocystis

Colonograptus

Lingulops

Schizodus

Colpomya

Linguocalymene

Schizolopha

Colpomya audae

Linguopugnoides

Schizonema

Colpomya balderi

Linochitina

Schizonema capillatum

Colpomya faba

Linograptus

Schizophaulactis

Colpomya hugini

Linoporella punctata

Schizophorella

Colpomya munini

Linostrophomena

Schizophorella fallax

Colpomya vaki

Liocalymene

Schizophoria

Columenoceras

Lioclemella

Schizophoria (Eoschizophoria) hesta

Columnaria alveolata

Liocnemis

Schizophoria (Schizophoria) impressa

Columnaria calicina

Liocoelia

Schizoproetus

Columnaxon

Liolalax

Schizoramma valentica

Columnopora

Liospira

Schizotreta

Columnostroma

Liospira affinis

Schizotreta corrugata

Colymbosathon

Liospira americana

Schlotheimophyllum

Colymbosathon ecplecticos

Liospira cornovica

Schmidtella

Comasphaeridium

Liospira depressum

Schmidtomena

Comatopoma

Liospira lenticularis

Schmidtomena acuteplicata

Comatopoma sororia

Liospira micula

Schrenckia

Compacoleus

Liospira modesta

Schuchertella

Compsocrinus

Liospira perdepressa

Schuchertella propinqua

Compsocrinus harrisi

Liospira progne

Schuchertia

Conbathella

Liospira simulans

Schuchertia wenlocki

Concavodonta

Liospira stevensoni

Schuchertoceras

Conchicolites

Liospira vitruvia

Schuchertoceras troedssoni

Conchidium

Liostrophia

Schugurocaris

Conchidium bilocularis

Liostrophia glabra

Scipionis

Conchidium microlocularis

Lisogorites

Scolopodus

Conchoprimites

Lissatrypa

Scolopodus insculptus

Conicocyathocrinites

Lissatrypa atheroidea

Scotiella

Conicocyathocrinites wilsoni

Lissatrypa lithuanica

Scotoharpes

Coniproetus

Lissatrypa obovata

Scotoharpes consuetus

Coniproetus ryckholti

Lissatrypa sulcata

Scotoharpes domina

Conocardium

Lissatrypella

Scotoharpes judex

Conocardium richmondense

Lissidium

Scotoharpes loma

Conochitina

Lissocoelina

Scotoharpes molongloensis

Conoclisa

Lissostrophia

Scotoharpes raaschi

Conoclisa minuta

Lissostrophia cooperi

Scotoharpes sinensis

Conoclisa schucherti

Litocrinus

Scotoharpes telleri

Conotoma

Lituigraptus

Scotoharpes trinucleoides

Conotoma bispiralis

Lituigraptus convolutus

Scotoharpes volsellatus

Conotoma claustrata

Lituites

Scotoharpes willsi

Conotoma eximia

Llandovacaste

Scutellum

Conotoma gradata

Llandovacaste birminghamensis

Scyphophyllum

Conotoma pugnus

Lobocorallium

Secuicollacta

Conotreta

Lobograptus

Secuicollacta glaebosa

Conotreta orbicularis

Lobomelocrinus

Secuicollacta malevola

Constellaria

Lockeia

Secuicollacta vallipuellae

Constellaria polystomella

Lockeia siliquaria

Selenopeltis

Constellatospongia

Loculipora

Selenopeltis buchii

Constellatospongia pervia

Lodenicia

Selenopeltis vultuosa

Contortophyllum

Loeblichia

Selenopeltoides

Contracheirurus

Loganellia

Sellinema

Contracheirurus errator

Loganellia aldridgei

Sellinema frater

Conularia

Loganellia cuneata

Semicorallidomus

Conularia splendida

Loganellia grossi

Semicorallidomus altidorsata

Cooksonia

Loganellia matura

Semicorallidomus hians

Cooksonia hemisphaerica

Loganellia scotica

Semicorallidomus whitfieldi

Cooksonia pertoni

Loganellia unispinata

Semicoscinium

Coolinia

Lonchidium

Semizona

Coolinia applanata

Lonchodina

Semizona bella

Coolinia convexa

Lonchodina greilingi

Senticucullus

Coolinia gamachiana

Lonchodina walliseri

Septatrypa

Coolinia gracilis

Lonchodomas

Septatrypa julia

Coolinia pecten

Lonchodus

Septatrypa subaequalis

Copenychia

Londinia

Septatrypa varians

Copenychia franta

Longiscula

Septatrypa zelia

Copenychia pristina

Longstaffia

Septemchiton

Corallidomus

Longstaffia centervillensis

Seretites

Coralloconchus

Longstaffia complexa

Sericoidea

Coralloconchus bragensis

Longstaffia cyclonema

Serpentubina

Corbuloceras

Longstaffia grata

Serpentubina semperturbina

Cordatomyonia

Longstaffia laqueata

Serpula

Cordatomyonia umangoensis

Longstaffia pulchra

Serpulites

Cordylocrinus

Longstaffia teretiuscula

Severella arctosulcata

Cordylodus

Longstaffia tubulosa

Severella pinnigera

Coremagraptus

Lophiostroma

Shagamella

Cornellites

Lophoctenella

Shaleria

Cornucrinus

Lophosphaeridium

Shaleria (Janiomya) ornatella

Cornucrinus longicornis

Lophospira

Shaleria (Janiomya) parallelomya

Cornucrinus mirus

Lophospira manitoulinensis

Shaleria (Shaleriella) ezerensis

Cornulites

Lophospira milleri

Shaleria dzwinogrodensis

Cornuodus

Lophospira modesta

Shaleriella

Cornuodus longibasis

Lophospira perangulata

Shaninopsis

Cornuproetus

Lophosteus

Shaninopsis acutirostris

Coronocephalus

Lordorthis

Shastaphyllum

Coronocephalus changningensis

Lordorthis variabilis

Shastaphyllum schucherti

Coronocephalus gaoluoensis

Loriolaster

Shensiphyllum

Coronocephalus rongxiensis

Lovenicystis

Shideleroceras

Coronocephalus tenuisulcatus

Lovenicystis angelini

Shielia

Coronograptus

Lovonemetrida

Shielia multispinata

Corrugatagnostus

Lowoceras

Sibirinka

Corrugopora

Loxobucania

Sibirinka amora

Corticulospongia

Loxobucania crassa

Sibiriolites

Corticulospongia floccosa

Loxobucania ellisensis

Sibiriolites sibiricus

Corvaspis arctica

Loxonema

Sibiritia

Corvucrinus

Loxonema beraunense

Sichuanoceras

Corvucrinus schucherti

Loxonema bertiense

Sieberella

Corymbospongia

Loxonema boydii

Sigmelasma

Corymbospongia adnata

Loxonema costulatum

Sigmelasma peepi

Corymbospongia betella

Loxonema crispa

Signetopsis

Corymbospongia mica

Loxonema debile

Silenis

Corynotrypa

Loxonema delicatula

Silfonocrinus

Corynotrypa abrupta

Loxonema fragillima

Silicunculus

Corynotrypa delicatula

Loxonema grayianum

Silicunculus bengtsoni

Corynotrypa dissimilis

Loxonema gregaria

Siljanostrophia

Corynotrypa inflata

Loxonema gregarium

Siljanostrophia camerata

Coryssognathus

Loxonema hibernicum

Siljanostrophia jaanussoni

Coryssognathus dubius

Loxonema inexpectatum

Siluraster

Coscinium

Loxonema leda

Siluraster ketleyi

Cosmiolithus

Loxonema magnum

Silurinka

Cosmogoniophora

Loxonema obsoleta

Siluriphorus

Cosmogoniophorina

Loxonema obsoletum

Siluriphorus fulminatus

Costaegera

Loxonema perlonga

Siluriphorus gotlandicus

Costaledopsis

Loxonema planatum

Siluriphorus undulans

Costatheca

Loxonema plasi

Silurocidaris

Costatulites

Loxonema pollens

Silurognathus

Costatulites richmondensis

Loxonema praecedens

Silurognathus maximus

Costilamnulella

Loxonema praeteritum

Silurolepis

Costilamnulella valdari

Loxonema propinquum

Silurolepis platydorsalis

Costistricklandia

Loxonema pseudofasciatum

Silurovelella

Costistricklandia brevis

Loxonema reedi

Similodonta

Costistricklandia gaspeensis

Loxonema sinuosum

Similodonta spjeldnaesi

Costistricklandia lirata

Loxonema solvens

Similoleptaena friedrichi

Costistrophomena

Loxonema strangulatum

Simplexodictyon

Crania anticostiana

Loxonema subangulatum

Sinacanthus

Craniops

Loxonema torquatum

Sinacanthus wuchangensis

Craspedelia

Loxoplocus

Sinocybele

Craspedobolbina

Loxoplocus gothlandicus

Sinodiversograptus

Craspedostoma

Loxoplocus nelsonae

Sinogaleaspis

Craspedostoma elegantulum

Loxoplocus sedgwicki

Sinogaleaspis shankouensis

Craspedostoma filistriatum

Loxoplocus soluta

Sinogaleaspis xikengensis

Craspedostoma glabrum

Loxoplocus vermetus

Sinogaleaspis zhejiangensis

Craspedostoma spinulosum

Ludictyon

Sinopora

Craspedostoma tuba

Ludlovia

Sinopora callosa

Crassatrypa

Ludlovia multispora

Sinopora operta

Crassilasma

Luhaia

Sinuites

Crassiproetus turgidus

Luhaia candelabra

Sinuites cancellatus

Crassitestella

Lumbriconereites

Sinuites subcompressa

Crassitestella reedi

Lumectospongia

Sinuitina

Crateroceras

Lumectospongia uncinata

Sinuitina matuta

Craterophyllum

Lunulacardium

Sinuitopsis

Craticula

Luojiashania

Sinuitopsis hornyi

Craticula gotlandica

Luxocrinus

Sinuitopsis subquadrata

Cremnorthis

Lyecoceras

Sinuspira

Crenulites

Lygdozoon

Sinutropis

Crepidosoma

Lyonicrinus

Sinutropis esthetica

Crepidosoma doylei

Lyopora

Sinutropis interrumpens

Crepidosoma wenlocki

Lyopora goldfussi

Siphonocrinus

Crepipora

Lyriocrinus

Siphonolasma

Crinobrachiatus

Lyrodesma

Siphonotreta

Crispella

Lyrodesma major

Siskiyouspira

Cromatrypa

Lyrodesma postplanum

Siskiyouspira vostokovae

Cromatrypa pubes

Lyrodesma poststriatum

Skenidioides

Cromus

Lysocystites

Skenidioides acutum

Cronyphyllum

Lytospira

Skenidioides asteroidea

Crotalocephalus

Lytospira arcuata

Skenidioides greenhoughi

Crotalocrinites

Lytospira nitida

Skenidioides hymiri

Crotalocrinites rugosus

Lytospira tangens

Skenidioides lewisii

Crozonaspis dujardini

Mackenziephyllum

Skenidioides multifarius

Cruziana

Mackenziurus

Skenidioides operosa

Cruziana problematica

Mackenziurus lauriae

Skenidioides petrasi

Cryptocycloceras

Mackerrovia

Skenidioides scoliodus

Cryptograptus

Mackerrovia jinei

Skenidioides woodlandiensis

Cryptograptus tricornis

Maclurina

Skenidium

Cryptolithoides

Maclurina manitobensis

Skolithos linearis

Cryptolithus

Macluritella

Slava

Cryptolithus bellulus

Maclurites

Slava sathon

Cryptophyllus

Maclurites altus

Slavinka

Cryptospira intraplicata

Maclurites borealis

Sleia

Cryptothyrella ovoides

Maclurites christianiae

Slependia

Cryptothyrella terebratulina

Maclurites crassa

Slimonia

Ctenobolbina

Maclurites cuneata

Slimonia dubia

Ctenoceras

Maclurites gravis

Sluha

Ctenocrinus

Maclurites magna

Sluha kosoviensis

Ctenodonta

Maclurites magnus

Sluzka ovulum

Ctenodonta iphigenia

Maclurites ovalis

Snoopyia

Ctenodonta madisonensis

Maclurites triangularis

Sokoloviella

Ctenodonta nasuta

Maclurites ungava

Sokoloviella delicata

Ctenodonta obliqua

Macrocypris

Solariproetus

Ctenodonta subcircularis

Macrodesma

Solariproetus prosthemesos

Ctenodonta subnasuta

Macrodesma enigma

Solariproetus shichengziensis

Ctenodontella

Macronotella

Solemya

Ctenognathodus

Macropleura

Solenomorpha

Ctenognathodus confluens

Macrostylocrinus

Solenopleura

Ctenognathodus jeppssoni

Macrypsilon

Solenopora

Ctenognathodus murchisoni

Macurdablastus uniplicatus

Sollasina

Ctenopleuron

Madygenia brachypyga

Sollasina cthulhu

Ctenopterus

Madygenia communis

Sollasina woodwardi

Cucullograptus

Maelonoceras

Somersetella

Cuffeyella arachnoidea

Maghrebocystis

Somersetella amplia

Culicocrinus

Maghrebocystis pachytheca

Somersetella conicula

Culumbodina

Malgaoceras

Somersetella digitata

Cuneamya

Malgaoceras moniliforme

Somphopora

Cuneamya miamiensis

Malovicrinus

Songkania

Cuneamya scapha

Malumispongium

Songkanoceras

Cuneatopora

Malumispongium cornwallisi

Songxites

Cupitheca

Maminka

Soomaspis

Cupulocorona

Mandaloceras

Sorosphaera

Cupulocrinus

Manicrinus

Sowerbyella

Cupulocrinus latibrachiatus

Manipora

Sowerbyella (Rugosowerbyella) ambigua

Curriella

Manitoulinoceras

Sowerbyella (Rugosowerbyella) dianbianensis

Curtognathus

Manitoulinoceras gyroforme

Sowerbyella (Sowerbyella) sericea

Cyamella

Manitoulinoceras lysander

Sowerbyella (Sowerbyella) sinensis

Cyamops stensioei

Manitoulinoceras postumius

Sowerbyella gigantea

Cyathactis

Manosia

Sowerbyella rugosa

Cyathactis balticus

Manticrinus

Sowerbyella sladensis

Cyathactis gazellensis

Manulicula

Spanila

Cyathaspis

Maoristrophia

Spathognathodus

Cyathaspis acadica

Maquoketocrinus

Spathognathodus celloni

Cyathaxonia

Maquoketocrinus ornatus

Spathognathodus dubius

Cyathochitina

Margachitina

Spathognathodus fundamentus

Cyathocrinites

Mariacrinus

Spathognathodus pennatus

Cyathocrinus

Marklandella

Spatiopora

Cyathodictya

Marklandella markesi

Sphaeragnostus

Cyathophycus

Marsipograptus

Sphaerexochus

Cyathophycus akiensis

Marsipograptus percensis

Sphaerexochus bridgei

Cyathophycus mackenziensis

Marsupiocrinus

Sphaerexochus calvus

Cyathophylloides

Marsupipterus

Sphaerexochus dimorphus

Cyathophyllum

Marsupipterus sculpturatus

Sphaerexochus glaber

Cyathotheca

Maryonychia

Sphaerexochus granulatus

Cyathotheca suecica

Maryonychia concordensis

Sphaerexochus hiratai

Cybantyx

Mastigobolbina

Sphaerexochus johnstoni

Cybele

Mastigocrinus

Sphaerexochus laciniatus

Cybelecrinus

Mastigocrinus bravoniensis

Sphaerexochus latifrons

Cybelecrinus ladas

Mastigograptus

Sphaerexochus planirachis

Cybelecrinus nebros

Mastopora foederata

Sphaerexochus romingeri

Cybeloides

Mastopora incrustata

Sphaerexochus scabridus

Cyclendoceras

Matteolaspongia

Sphaerina

Cycloceras

Matteolaspongia hemiglobosa

Sphaerirhynchia

Cycloceras olorus

Maurotarion

Sphaerirhynchia wilsoni

Cyclocharax

Mausoleaster

Sphaerochitina

Cyclocoelia

Mazaphyllum

Sphaerocodium

Cycloconcha

Mcewanella

Sphaerocoryphe

Cyclocrinites

Mclearnites

Sphaerocoryphe kingi

Cyclocrinus

Meadowtownella

Sphaerocoryphe punctata

Cyclocyclicus

Medfracaulus

Sphaerocyclus

Cyclocyrtonella

Medfracaulus contracta

Sphaerocyclus tuber

Cyclocyrtonella eremita

Medfracaulus cooki

Sphaerocystites

Cyclocystoides

Medfracaulus turriformis

Sphaeronites (Peritaphros) variabilis

Cyclograptus

Medfrazyga

Sphaerorthoceras

Cyclonema

Medfrazyga gilmulli

Sphaerorthoceras beatum

Cyclonema (Cyclonema) hiiumaa

Medinaster

Sphaerotocrinus

Cyclonema ampullosum

Medusaegraptus

Sphenolium

Cyclonema ananas

Megakozlowskiella

Sphenosphaera

Cyclonema apicatum

Megakozlowskiella cooperi

Sphenosphaera centervillensis

Cyclonema bilix

Megalograptus

Sphenosphaera consimilis

Cyclonema boreale

Megalomoidea

Sphenosphaera eiseni

Cyclonema canaliculata

Megalomphala

Sphenosphaera fiscellostriata

Cyclonema cancellatum

Megalomphala carinata

Sphenosphaera laurentinus

Cyclonema cives

Megalomphala crassa

Sphenosphaera mohri

Cyclonema composita

Megalomphala dawesi

Sphenosphaera opertus

Cyclonema consepultum

Megalomphala gotlandica

Sphenosphaera subangularis

Cyclonema convergens

Megalomphala marjorae

Sphenothallus

Cyclonema crebristria

Megalomphala septentrionale

Sphenotreta

Cyclonema daytonensis

Megalomphala taenia

Sphooceras

Cyclonema decora

Megalomphala wilfredi

Sphooceras truncatum

Cyclonema delicatula

Megamyonia

Sphyradoceras

Cyclonema delicatulum

Megamyonia arethusa

Spinachitina

Cyclonema dowlingii

Megamyonia breviuscula

Spinatrypa

Cyclonema fasciata

Megamyonia gracilis

Spinatrypina

Cyclonema filicinctus

Megamyonia knighti

Spinatrypina tubulosa

Cyclonema formosum

Megamyonia nitens

Spinicharybdis

Cyclonema gyronemoides

Megamyonia unicostata

Spinicharybdis billingsi

Cyclonema humerosum

Megamyonia vaurealensis

Spinicharybdis boucoti

Cyclonema infrequens

Megastrophia

Spinicharybdis canteriata

Cyclonema karlsteinensis

Megastrophia (Eomegastrophia) acanthoptera

Spinicharybdis elora

Cyclonema lepidula

Megastrophia (Eomegastrophia) paskoiacensis

Spinicharybdis frenata

Cyclonema minuta

Meifodia

Spinicharybdis gasconsensis

Cyclonema modestum

Meifodia prima

Spinicharybdis krizi

Cyclonema niagarensis

Meifodia subundata

Spinicharybdis wilsoni

Cyclonema parvimedium

Meifodia tulkulensis

Spinochonetes

Cyclonema percingulatum

Meishanaspis

Spinodus

Cyclonema rupestre

Meishanaspis lehmani

Spinograptus

Cyclonema servus

Meitanillaenus

Spirifer

Cyclonema thalia

Melbournopterus

Spirifer insignis

Cyclonema timida

Melbournopterus crossotus

Spiriferina

Cyclonema timidum

Melocrinites

Spirigerina

Cyclonema trepidans

Mendacella

Spirigerina (Eospirigerina) gaspeensis

Cyclonema varians

Mendacella aerinensis

Spirigerina copperi

Cyclonema varicosa

Mendacella bleikeriensis

Spirigerina marginalis

Cyclonema varicosum

Mendacella circularis

Spirigerina quinquecostata

Cyclonema varispirum

Mendacella lata

Spirigerina supramarginalis

Cyclopyge

Mendacella megacircularis

Spirina

Cyclora

Mendacella mullockiensis

Spirina antiquata

Cyclospira

Mendacella phiala

Spirina patula

Cyclospira nana

Mendacella sola

Spirinella

Cyclospira orbus

Mendacella uberis

Spirinella caecistriata

Cyclospira perplexa

Mendacella udauberis

Spirinella struszi

Cyclospira scanica

Mercedescaudina

Spirinella tureki

Cyclospongia

Mercedescaudina mostleri

Spirograptus

Cyclospongia discus

Merciella

Spiroraphe aequilatera

Cyclotheca bohemica

Mericoceras

Spiroraphe bohemica

Cyclotropis vellerosa

Merista

Spiroraphe cryptata

Cyclotrypa

Merista cuneatina

Spiroraphe galtensis

Cylicocrinus

Merista oklahomensis

Spiroraphe putillus

Cymatelasma

Merista rhombiformis

Spiroraphe shelvensis

Cymatiosphaera

Meristella

Spirorbis

Cymatonota

Meristina

Spirorbis cincinnatiensis

Cymatonota prolata

Meristina maria

Spondylopyxis

Cymatonota recta

Meristina podolica

Spongiostroma

Cymatonota semistriata

Meristocrinus orbignyi

Spongiostroma dalecarlica

Cymatonota typicalis

Meristoschisma

Spongophylloides

Cymbidium

Meristospira

Spongophyllum

Cymbidium acutum

Merocycloceras

Spurispirifer

Cymbidium kirki

Meroperix

Spyroceras

Cymbularia

Mesocoelia

Spyroceras baffinense

Cymbularia bullatus

Mesocoelia delicata

Spyroceras damesi

Cymbularia decipens

Mesocoelia discrepans

Squamathyris

Cymbularia decorata

Mesocoelia gregaria

Squameofavosites

Cymbularia merita

Mesocoelia iners

Squameolites

Cymbularia nuciformis

Mesocoelia janus

Starnikoviella

Cymbularia turnbulli

Mesocoelia libera

Starnikoviella settedabanica

Cymbularia woodlandensis

Mesocoelia suspecta

Staufferella

Cymostrophia

Mesocoelia terebrans

Staufferoceras

Cyphaspis

Mesoculipora

Stauria

Cyphocrinus

Mesodouvillina

Staurocephalites

Cyphomenoidea

Mesofavosites

Staurocephalus

Cyphomenoidea bella

Mesofavosites alveolitoides

Staurocephalus clavifrons

Cyphomenoidea wisgoriensis

Mesofavosites bonus

Staurocephalus murchisoni

Cyphoniscus

Mesofavosites dualis

Staurocephalus trichochin

Cyphoniscus socialis

Mesofavosites fleximurinus

Staurocystis

Cyphoproetus

Mesofavosites fortis

Steganotheca

Cyphoproetus comitilus

Mesofavosites imbellis

Steganotheca striata

Cyphoproetus latiaxis

Mesofavosites inferior

Stegerhynchella

Cyphoproetus pugionis

Mesofavosites kiltsiensis

Stegerhynchus

Cyphoproetus svartoensis

Mesofavosites multiporus

Stegerhynchus antiqua

Cyphotrypa

Mesofavosites obliquus

Stegerhynchus borealis

Cypricardella

Mesofavosites pulchrum

Stegerhynchus concinna

Cypricardinia

Mesofavosites secundus

Stegerhynchus diodontus

Cypricardinia dalecarlica

Mesofavosites silicificatus

Stegerhynchus estonicus

Cypricardites grandis

Mesofavosites similis

Stegerhynchus peneborealis

Cyrtia

Mesofavosites validus

Stegerhynchus praecursor

Cyrtia alatiformis

Mesoleptostrophia

Stegerhynchus pseudobidentatus

Cyrtia exporrectus

Mesoleptostrophia (Mesoleptostrophia) filosa

Stegerhynchus pusillum

Cyrtina

Mesoleptostrophia cocksi

Stegerhynchus vicina

Cyrtoceras

Mesoleptostrophia filosa

Stegocornu

Cyrtocerina

Mesopalaeaster wilberanus

Stegocornu procerum

Cyrtocycloceras

Mesopholidostrophia

Stelckaspis

Cyrtodiscus

Mesopholidostrophia fletcheri

Stelckaspis perplexa

Cyrtodiscus evolvens

Mesopholidostrophia laevigata

Stellatodictya

Cyrtodonta

Mesopholidostrophia nitens

Stellipora

Cyrtodonta exigua

Mesopholidostrophia salopiensis

Stellipora constellata

Cyrtodonta grandis

Mesosolenia

Stelliporella

Cyrtodonta kagawongensis

Mesotaphraspis

Stelliporella podolica

Cyrtodonta ovalis

Mesotrypa

Stellopora

Cyrtodonta plebia

Mespilocystites

Stelodictyon

Cyrtodonta ponderosa

Mespilocystites tregarvanicus

Stenaster

Cyrtodonta sigmoides

Metacalymene

Stenaster obtusus

Cyrtodonta suecica

Metaclimacograptus

Stenoblepharum

Cyrtodontula

Metaconularia

Stenoblepharum norvegicum

Cyrtodontula complanata

Metadictya

Stenoblepharum pentagonoides

Cyrtodontula subtruncata

Metaleiolichas

Stenoblepharum striatum

Cyrtodontula truncata

Metaleiolichas tuberculatus

Stenoblepharum warburgae

Cyrtogomphoceras

Metambonites

Stenogomphoceras

Cyrtograptus

Metambonites meritus

Stenoloron

Cyrtolites

Metapalaeoneilo

Stenoloron areyi

Cyrtolites hornyi

Metapalaeoneilo dromon

Stenoloron fasciata

Cyrtolites inornatum

Metaplasia

Stenoloron linnarssoni

Cyrtolites inprobus

Metapolichas

Stenoloron sulcatula

Cyrtolites occultus

Metarizoceras

Stenopareia

Cyrtolites ornatus

Metarmenoceras

Stenopareia acymata

Cyrtolites retrorsus

Metaspyroceras

Stenopareia catathema

Cyrtolites rugosus

Metopolichas

Stenopareia duffyae

Cyrtolites seminulum

Metoptoma

Stenopareia glochin

Cyrtolites sinuosus

Metoptoma alceste

Stenopareia grandis

Cyrtolites tuboides

Mezounia

Stenopora

Cyrtometopus

Miamoceras

Stenorhynchia

Cyrtonella

Michelia

Stenorhynchites

Cyrtonotella

Michelia persimilis

Stephanocrinus

Cyrtophyllum

Michelia tenera

Stephanocrinus angulatus

Cyrtorizoceras

Michelia whiteavesi

Stephanocrinus ramsbottomi

Cyrtorizoceras thorslundi

Michelinia

Stereoaster

Cyrtospira

Michelinoceras

Stereoconus

Cyrtospira directus

Michelinoceras alticameratum

Steusloffina

Cyrtospira funata

Michelinoceras michelini

Sthenarocalymene

Cyrtospira inexpectata

Michelinoceras mizobuchii

Stibarocrinus

Cyrtospira notata

Micrhystridium

Stictopora

Cyrtospira ventricosus

Micrhystridium stellatum

Stictopora nitidula

Cyrtostropha

Microbilobata

Stictopora parvula

Cyrtostropha bicincta

Microbilobata avalanchensis

Stictoporella

Cyrtostropha cava

Microcardinalia

Stictotrypa

Cyrtostropha coralli

Microcardinalia (Chiastodoca) estonica

Stigmatella

Cyrtostropha macrospira

Microcardinalia (Chiastodoca) richardsoni

Stigmatella crenulata

Cyrtostropha monoliniformis

Microcardinalia (Chiastodoca) salterii

Stigmosphaerostylus

Cyrtostropha morinensis

Microcardinalia (Dauphinella) melissa

Stimulograptus

Cyrtostropha pacifica

Microcheilinella

Stipatocrinus

Cyrtostropha salteri

Microchilina

Stipatocrinus hulveri

Cyrtostropha sculpta

Micromitra

Stipespongia

Cyrtostropha subplicata

Microparia

Stipespongia laminata

Cystihalysites

Microplasma

Stiptocrinus

Cystihalysites deplanatus

Microscutellum

Stoermeropterus

Cystipaliphyllum

Microscutellum primigenium

Stoermeropterus conicus

Cystiphorolites

Microsphaeridiorhynchus

Stokesoceras

Cystiphyllum

Microsphaeridiorhynchus hercostomaticum

Stolidotus

Cystiphyllum visbyense

Microsphaeridiorhynchus litchfieldensis

Stolidotus marco

Cystistroma

Microsphaeridiorhynchus nucula

Stomatograptus

Cystistroma canadense

Microspongia

Stomatopora

Cystocerium

Mictocystis

Stomatopora arachnoidea

Cystograptus

Mictospirifer

Stortophyllum

Cystostroma prodigiosum

Miculiella

Strachanognathus

Cystothalamiella

Migmatophyllum

Strandoceras

Cystothalamiella alaskaensis

Mila

Strandoceras orvikui

Cystothalamiella ducta

Mila parvula

Straparollina

Cystothalamiella irregularis

Milaculum

Straparollina eurydice

Cystothalamiella tuboides

Mimella

Straparollina infida

Cytherellina

Mimella zhejiangensis

Straparollus

Cytocrinus

Mimerodonta

Straparollus complanans

Dactylogonia

Mimerodonta atlei

Straparollus fragilis

Daidia

Mimerodonta njordi

Straparollus honoratus

Daidia cerithioides

Mimerodonta phaseolus

Stratodictyon

Daidia peculiaris

Mimocryphaeus

Streptaster

Daidia subconica

Mimospira

Streptaster nodosus

Daidia wilsonae

Mimospira cochleata

Streptaster vorticellatus

Dalaspis

Minutomena

Streptelasma

Dalaspis boltoni

Minutomena yichangensis

Streptelasma (Streptelasma) giganteum

Dalaspis pustulosa

Miraspis

Streptelasma corniculum

Dalecarlioceras

Miraspis cardiolarum

Streptelasma cyrtum

Dalecarlioceras dalecarlicum

Miraspis cornuta

Streptelasma dispandum

Daleiella

Miraspis mira

Streptelasma divaricans

Dalejina

Miraspis solbergensis

Streptelasma duncani

Dalejina hybrida

Mirorgraptus

Streptelasma ostrogothicum

Dalejina junonis

Mirorthis

Streptelasma primum

Dalejina phaseola

Mirorthis mira

Streptis

Dalejina striata

Miscellanea

Streptis altosinuata

Dalmanella

Mitoclema

Streptis grayii

Dalmanella antisculpta

Mitroceras

Streptis monilifera

Dalmanella cicatrica

Mitrocystites

Streptis undifera

Dalmanella cyclica

Mixopterus

Streptocrinus

Dalmanella edgewoodensis

Mjoesina

Streptograptus

Dalmanella manitoulinensis

Mjoesina moorei

Streptograptus antennularius

Dalmanella pectinoides

Mochtyella

Streptorhynchus

Dalmanella rosensteinae

Modesta

Streptotrochus

Dalmanella sculpta

Modiodonta

Streptotrochus amicus

Dalmanella testudinaria

Modiolodon

Streptotrochus cyclostoma

Dalmanites

Modiolodon kagawongensis

Streptotrochus incisus

Dalmanites caudatus

Modiolopsis

Streptotrochus mercurius

Dalmanites jupiterensis

Modiolopsis alvae

Streptotrochus rugulosus

Dalmanitina

Modiolopsis brevantica

Strepula

Dalmanophyllum

Modiolopsis concentrica

Striatocycloceras

Damilina

Modiolopsis exilis

Striatocycloceras foerstei

Damilina laevigata

Modiolopsis leptaenarum

Striatocycloceras isbergi