List of the Paleozoic life of Michigan

This list of the Paleozoic life of Michigan contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Michigan and are between 538.8 and 252.17 million years of age.

A

 * †Acanthoclema
 * †Acanthoclema ohioensis
 * †Acanthonema – type locality for genus
 * †Acanthonema holopiforme – type locality for species
 * †Acanthonema laxa – type locality for species
 * †Acidaspis
 * †Actinoceras
 * †Actinoceras backi
 * †Actinoceras bigsbyi – or unidentified comparable form
 * †Actinoceras gouldense – type locality for species
 * †Actinoceras sphaeroidale
 * †Alaskozygopleura
 * †Alaskozygopleura gracillium
 * Alethopteris PAMuseum.jpg †[[Alethopteris]]
 * †Alethopteris decurrens
 * †Alethopteris Helenae
 * †Allonema
 * †Ambocoelia – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Ambocoelia umbonata – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Ambonychia
 * †Ambonychia carinata
 * †Ambonychia elroyi
 * †Ambonychia obesa
 * †Amphilichas
 * †Amphilichas cucullus – tentative report
 * †Anazyga
 * †Anazyga recurvirostra
 * Annularia Stellata.jpg †[[Annularia]]
 * †Annularia asteris
 * †Annularia sphenophylloides
 * †Anomalodonta
 * †Anomalodonta gigantea – or unidentified comparable form
 * †Anoptera
 * †Anoptera angusta
 * †Anthropora
 * †Anthropora shafferi
 * †Antirotella
 * †Antirotella helicinaeformis – type locality for species
 * †Archinacella
 * †Archinacella kagawongensis
 * †Arcyzona
 * †Arcyzona apobathrota
 * †Arthroacantha
 * †Arthroacantha carpenteri
 * †Ascodictyon
 * †Ascodictyon fusiforme
 * †Asolanus
 * †Asolanus camptotaena
 * †Asterophyllites
 * †Asterophyllites equisetiformis
 * †Asterophyllites longifolius – or unidentified comparable form
 * †Asterophyllites vernensis
 * †Atactoechus
 * †Atactoechus typicus – or unidentified comparable form
 * †Athyris
 * †Athyris lens
 * †Athyris vittata
 * Atrypa reticularis pedunculate Gondelsheim CRF.jpg †[[Atrypa]]
 * †Atrypa traversensis
 * †Aulacera
 * †Aulacera nodulifera
 * †Aulacotheca
 * †Aulacotheca Campbelli
 * †Aulocystis
 * †Aulocystis auloporoidea
 * †Aulocystis jacksoni
 * †Aulocystis lucasensis
 * †Aulopora
 * †Aulopora microbuccinata

B

 * †Batostoma
 * †Beatricea
 * †Beatricea undulata
 * Bellerophon umbilicalis.jpg †[[Bellerophon (genus)|Bellerophon]]
 * †Bellerophon barquensis – type locality for species
 * †Bellerophon newberryi
 * †Bellerophon pelops
 * †Bensbergia
 * †Bensbergia subcostata
 * †Bethanyphyllum
 * †Bethanyphyllum robustum
 * †Bicarina
 * †Bicarina petilitornata
 * †Bigalea – type locality for genus
 * †Bigalea yangi – type locality for species
 * †Billingsites
 * †Billingsites newberryi
 * †Bothrodendron
 * †Bothrodendron minutifolium
 * †Bothrodendron punctatum
 * †Botryllopora
 * †Botryllopora socialis
 * †Bowmanites
 * †Brachyprion
 * †Buechelia
 * †Buechelia tyrrelli
 * †Byssonychia
 * †Byssonychia richmondensis
 * Bythocypris
 * †Bythocypris cylindrica
 * †Bythopora
 * †Bythopora striata

C

 * Calamites stems.JPG †[[Calamites]]
 * †Calamites carinatus
 * †Calamites cistii
 * †Calamites ramosus
 * †Calamites schutzeiformis
 * †Calamites suckowii
 * †Calamites undulatus
 * †Calapoecia
 * †Calapoecia cribriformis
 * †Calapoecia huronensis
 * †Callipleura
 * †Callipleura nobilis – or unidentified comparable form
 * †Callixylon
 * †Callixylon newberryi
 * Calymene clavicula dorsal.jpg †[[Calymene]]
 * †Camarotoechia
 * †Cardiocaron
 * †Cardiocaron reniformis
 * †Cardiocarpon
 * †Cardiocarpon annulatum
 * †Cardiocarpon bicuspidatum
 * †Cardiocarpon cuyahogae
 * †Cardiocarpon late-alatum
 * †Cardiocarpon ovale
 * Ceraurus fossil cropped.png †[[Ceraurus]]
 * †Ceraurus simmonsi
 * †Cerithioides
 * †Cerithioides incomptum
 * †Cheirocrinus – tentative report
 * †Chonetes
 * †Chonetes ensicosta
 * †Chonetes hybus
 * †Chonetes pachyactis
 * †Clathronema
 * †Clathronema cingulata
 * †Clidophorus
 * †Clidophorus noquettensis
 * †Clidophorus ogontzensis
 * Climacograptus wilsoni Graptolite Fossils from Dob%27s Linn Scotland.jpg †[[Climacograptus]]
 * †Climacograptus putillus
 * †Coelospira
 * †Coleolus
 * †Colpomya
 * †Colpomya colgateri
 * †Columnaria
 * †Columnaria alveolata
 * †Columnaria calicina
 * †Columnaria stokesi
 * †Conularia
 * †Conularia formosa
 * †Conularia trentonensis
 * †Cordaianthus
 * †Cordaianthus ampullaceus
 * †Cordaianthus devonicus
 * Cordaites fossil cropped.png †[[Cordaites]]
 * †Cordaites borassifolius
 * †Cordaites crassinervis
 * †Cordaites michiganensis
 * †Cordaites palmaeformis
 * †Cordaites principalis
 * †Cordaites Robbii – tentative report
 * †Cornulites
 * †Cornulites corrugatus
 * †Cornulites flexuosus
 * †Cornulites sterlingensis – or unidentified comparable form
 * †Corocrinus
 * †Corocrinus pettyesi
 * †Corynepteris
 * †Corynepteris coralloides – tentative report
 * †Cranaena
 * †Cranaena amygdaloidea – or unidentified related form
 * †Cranaena lincklaeni
 * †Cranaena romingeri
 * †Crenulazona
 * †Crenulazona angulata
 * †Cryptonella
 * †Ctenodonta
 * †Ctenodonta iphigenia
 * †Cuneamya
 * †Cuneamya miamiensis
 * †Cupularostrum
 * †Cupularostrum prolificum
 * †Cyclonema
 * †Cyclonema minuta
 * †Cylindrophyllum
 * †Cylindrophyllum profundum
 * †Cymatonota
 * †Cymatonota typicalis – or unidentified comparable form
 * †Cyrtina
 * †Cyrtina alpenensis
 * †Cyrtina hamiltonensis – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Cyrtina umbonata
 * †Cyrtoceras – tentative report
 * †Cyrtodonta
 * †Cyrtodonta grandis
 * †Cyrtodonta potteri
 * †Cyrtolites
 * †Cyrtolites ornatus
 * †Cyrtostropha
 * †Cyrtostropha salteri

D

 * †Dalmanella
 * †Dalmanella emacerata
 * †Dalmanella jugosa
 * †Decorochilina
 * †Decorochilina robusta
 * †Denayella
 * †Denayella bella – type locality for species
 * †Devonalosia
 * †Devonalosia wrightorum
 * †Devonochonetes
 * †Devonochonetes coronatus
 * †Devonochonetes fragilis
 * †Devonochonetes scitulus
 * †Dictyobembix – type locality for genus
 * †Dictyobembix bella – type locality for species
 * †Diplothmema
 * †Discinites
 * †Discinites delectus
 * †Discinites jongmansi
 * †Discosorus
 * †Discosorus ehlersi – type locality for species
 * †Discosorus halli – type locality for species
 * †Discosorus parksi – type locality for species
 * †Discosorus remotus – tentative report
 * †Douvillina
 * †Douvillina distans
 * †Duncanella – tentative report

E

 * †Echinocaris
 * †Echinocaris punctata
 * †Echinocoelia
 * †Elasmonema – tentative report
 * †Elasmonema corrugata
 * †Eldredgeops
 * †Eldredgeops rana
 * †Eliasopora
 * †Eliasopora stellatum
 * †Elita
 * †Elita filicosta
 * †Encrinurus
 * †Endoceras
 * †Eremopteris
 * †Eremopteris michiganensis
 * The Eurypterida of New York plate 20 cropped.jpg †[[Erieopterus]]
 * †Erieopterus microphthalmus
 * †Euphemites – tentative report
 * †Euphemites devoniana
 * †Euryzone
 * †Euryzone latitornata – type locality for species
 * †Euryzone pharkidopyndax – type locality for species
 * †Euthyrhachis
 * †Euthyrhachis indianense

F

 * FavositesOrdovicianIndiana.jpg †[[Favosites]]
 * †Ferganella
 * †Flexicalymene
 * †Flexicalymene croneisi
 * †Flexicalymene magnipapilla – type locality for species
 * †Flexicalymene meeki – or unidentified comparable form
 * †Flexicalymene planilabra – type locality for species
 * †Flexicalymene praelongicephala – type locality for species
 * †Flexicalymene quadricapita – type locality for species
 * †Flexicalymene senaria
 * †Floweria
 * †Floweria lirella

G

 * †Geniculograptus
 * †Geniculograptus pygmaeus
 * †Gennaeocrinus
 * †Gennaeocrinus chilmanae
 * †Gennaeocrinus romingeri
 * †Genuspira – type locality for genus
 * †Genuspira nodosa – type locality for species
 * †Gigantopteris
 * †Gigantopteris dawsoni
 * †Gigantopteris kellyi
 * Rhodocrinidae - Gilbertsocrinus tuberosus.JPG †[[Gilbertsocrinus]]
 * †Gilbertsocrinus ohioensis
 * †Ginkgophyllum
 * †Ginkgophyllum grandifolium
 * †Girvanella
 * †Girvanella richmondensis
 * †Glossograptus
 * †Grammysia
 * †Graptodictya
 * †Graptodictya proava
 * RugosaOrdovician.jpg †[[Grewingkia]]
 * †Grewingkia canadensis
 * †Grewingkia deltensis
 * †Gypidula
 * †Gypidula petoskeyensis

H

 * Hallopora multitabulata fossil bryozoan (Ordovician; Frankfort IL.jpg †[[Hallopora]]
 * †Hallopora subnodosa
 * †Halysites
 * †Halysites gracilis
 * †Hebertella
 * †Hebertella alveata
 * †Hebertella occidentalis
 * †Hederella
 * †Hederella alpenensis
 * †Hederella bilineata
 * †Hederella cirrhosa
 * †Hederella concinnoides
 * †Hederella delicatula
 * †Hederella filiformis
 * †Hederella magna
 * †Hederella parvirugosa
 * †Hederella rectifurcata
 * †Hederella reimanni
 * †Hederella stolonifera
 * †Hederella thedfordensis
 * †Hederella vagans
 * †Helicelasma
 * †Helicelasma rusticum
 * †Helicotoma
 * †Helicotoma brocki
 * †Helopora
 * †Helopora inexpectata
 * †Hercostrophia
 * †Hercostrophia robusta
 * †Hesperorthis
 * †Hesperorthis tricenaria
 * †Heterophrentis
 * †Heterophrentis simplex
 * †Heterotrypa
 * Hexagonaria percarinata close view.JPG †[[Hexagonaria]]
 * †Hexagonaria pericarinata
 * †Hindia
 * †Hindia subrotunda
 * †Hippocardia
 * †Hippocardia monroica
 * †Hippurograptus
 * †Hiscobeccus
 * †Hiscobeccus capax
 * Holopeidae - Holopea praestans.JPG †[[Holopea]]
 * †Holopea hubbardi – or unidentified related form
 * †Holtedahlina
 * †Holtedahlina sulcata
 * †Hormotoma
 * †Hormotoma gracilis
 * †Hormotomina
 * †Hormotomina penduliobesa
 * †Howellella
 * †Huronia
 * †Huronia annulata
 * †Huronia bigsbyi
 * †Huronia bigsbyi intermedia – type locality for variety
 * †Huronia distincta
 * †Huronia engadinensis – type locality for species
 * †Huronia minuens
 * †Huronia obliqua
 * †Huronia paulodilatata
 * †Huronia romingeri
 * †Huronia turbinata
 * †Huronia minuens
 * †Huronia vertebralis
 * †Huroniella
 * †Huroniella ehlersi – type locality for species
 * †Hyperoblastus
 * †Hyperoblastus reimanni
 * †Hypomphalocirrus
 * †Hypomphalocirrus rugosus

I

 * †Icriodus
 * †Icriodus latericrescens
 * †Illionia
 * †Inocaulis
 * †Intrapora
 * †Isochilina
 * Isotelus brachycephalus.JPG †[[Isotelus]]
 * †Isotelus gigas

K

 * †Kitikamispira
 * †Kitikamispira speciosum

L

 * †Leioclema
 * †Leioclema alpenense
 * †Leiorhynchus
 * †Leiorhynchus kelloggi
 * †Leiorhynchus lucasi
 * †Leperditia
 * †Lepidocarpon
 * †Lepidocarpon linear
 * Stigmaria Heimans.jpg †[[Lepidodendron]]
 * †Lepidodendron aculeatum
 * †Lepidodendron Brittsii
 * †Lepidodendron dichotomum
 * †Lepidodendron lanceolatum
 * †Lepidodendron lycopodiodes
 * †Lepidodendron obovatum
 * †Lepidodendron obvatum
 * †Lepidodendron ophiurioides
 * †Lepidodendron vestitum
 * †Lepidostrobus
 * †Lepidostrobus bartlettii
 * †Leptaena
 * †Leptalosia
 * †Leptalosia radicans
 * †Leptobolus
 * †Leptobolus insignis
 * †Leptolosia
 * †Leptolosia radicans
 * †Leptotrypella
 * †Leptotrypella ohioensis
 * †Lichenocrinus
 * †Lichenocrinus tuberculatus
 * †Lingula
 * †Lingula changi
 * †Lingula cobourgensis
 * †Lingula ogontzensis
 * †Lingula progne – or unidentified comparable form
 * †Lingula whitfieldi – or unidentified comparable form
 * †Liospira
 * †Liospira micula
 * †Longispina
 * †Longispina lissohybus
 * †Lophospira
 * †Lophospira milleri
 * †Lophospira perangulata – or unidentified related form
 * †Lyopora
 * †Lyopora goldfussi

M

 * †Maelonoceras
 * †Maelonoceras ligarius
 * †Manitobiella
 * †Manitobiella goniostoma
 * †Mariopteris
 * †Mariopteris muricata
 * †Mariopteris nervosa
 * †Mastigograptus
 * †Mastigospira
 * †Mastigospira ingens – type locality for species
 * †Mastigospira intermedia – type locality for species
 * †Mediospirifer
 * †Mediospirifer audaculus
 * †Megastrophia
 * †Megastrophia concava
 * Meristella two views.png †[[Meristella]]
 * †Mesocoelia
 * †Mesocoelia obstipisutura
 * †Mesocoelia priscum
 * †Mesotrypa
 * †Modiolopsis
 * †Modiolopsis noquettensis
 * †Modiolopsis valida
 * †Monticulipora
 * †Monticulipora epidermata
 * Mucrospirifer mucronatus Silica Shale.JPG  †[[Mucrospirifer]]
 * †Mucrospirifer attenuatus
 * †Mucrospirifer grabaui
 * †Mucrospirifer latus
 * †Mucrospirifer mucronatus
 * †Mucrospirifer profundus
 * †Mucrospirifer prolificus
 * †Mucrospirifer thedfordensis
 * †Murchisonia
 * †Murchisonia akidota
 * †Murchisonia anderdoniae
 * †Murchisonia deludisubzona – type locality for species
 * †Murchisonia dowlingii
 * †Murchisonia gracilicrista
 * †Murchisonia sibleyensis
 * †Murchisonia subcarinata
 * †Murchisonia subulata – type locality for species

N

 * †Naticopsis
 * †Naticopsis manitobensis
 * Neuropteris PAMuseum.jpg †[[Neuropteris]]
 * †Neuropteris caudata
 * †Neuropteris dilitata
 * †Neuropteris flexuosa
 * †Neuropteris gigntea – tentative report
 * †Neuropteris harrisi – or unidentified comparable form
 * †Neuropteris heterophylla – or unidentified comparable form
 * †Neuropteris obliqua
 * †Neuropteris rarinervis
 * †Neuropteris saginawensis
 * †Neuropteris scheuchzeri
 * †Neuropteris Schlehani
 * †Neuropteris tenuifolia
 * †Nodonema
 * †Nodonema granulatum
 * †Nowakia
 * †Nuculites
 * †Nuculites neglectus
 * †Nuculoidea
 * †Nuculoidea lirata – or unidentified comparable form

O

 * †Odontopteris
 * †Oenonites
 * †Oenonites curvidens – or unidentified related form
 * [[File:Animalia Arthropoda Trilobita Ogygites desmaresti Sion, France, Ordovician (Musee Histoire Naturelle, Paris, 19 Dec 2012) 01.tif|thumb|upright=0.596|Fossil of the Ordovician trilobite Ogygites]] †[[Ogygites]]
 * †Ogygites latimarginatus
 * †Oligorachs
 * †Oligorachs littletonensis
 * †Omphalocirrus
 * †Onchometopus
 * †Oncoceras
 * †Ophisthoptera
 * †Ophisthoptera casei – or unidentified comparable form
 * †Ophistoloba
 * †Ophistoloba gouldi
 * †Opisthoptera
 * †Opisthoptera gouldi
 * †Opisthoptera griffini
 * †Opisthopteri
 * †Opisthopteri casei – or unidentified comparable form
 * †Orbiculoidea
 * †Ormoceras
 * †Ormoceras bayfieldi
 * †Ormoceras whitei
 * †Orthoceras
 * †Orthoceras alienum – or unidentified comparable form
 * †Orthodesma
 * †Orthodesma subangulatum – or unidentified comparable form
 * †Orthograptus
 * †Orthograptus eucharis
 * †Orthograptus quadrimucronatus
 * †Orthograptus truncatus
 * †Orthonota
 * †Orthonota parvula
 * †Orthonota undulata
 * †Orthonychia
 * †Orthonychia variablis – type locality for species
 * †Orthopleura
 * †Orthopleura B Imbrie – informal
 * †Oxoplecia – or unidentified comparable form
 * †Oxoplecia calhouni

P

 * †Pachydictya
 * †Pagodea
 * †Pagodea falcatinoda – type locality for species
 * †Palaeopteridium
 * †Palaeopteridium Reussi
 * †Palaeoscurria – tentative report
 * †Palaeozygopleura
 * †Palaeozygopleura hamiltoniae
 * †Palaeozygopleura joani
 * †Palaeozygopleura sibleyensis
 * †Paleofavosites
 * †Paleofavosites asper
 * †Palmatopteris
 * †Palmatopteris furcata
 * †Panenka
 * †Panenka canadensis
 * †Papillicalymene
 * †Papillicalymene husseyi – type locality for species
 * [[File:Paraspirifer bownockeri, pyritized brachiopods, Middle Devonian, Silica Shale, Lucas County, Ohio, USA - Houston Museum of Natural Science - DSC01732.JPG|thumb|upright=0.745|Assemblage of the Early-Middle Devonian brachiopod Paraspirifer]] †[[Paraspirifer]]
 * †Paraspirifer bownockeri
 * †Paupospira
 * †Paupospira bowdeni
 * †Paupospira tropidophora
 * †Pecopteris
 * †Pecopteris dentata – tentative report
 * †Pecopteris miltoni
 * †Penniretepora
 * †Penniretepora irregularis – or unidentified comparable form
 * †Pentamerella
 * †Pentamerella athyroides
 * †Pentamerella aulax
 * †Pentamerella papilla
 * †Pentamerella pericosta
 * †Pentamerella petoskeyensis
 * †Pentamerella proteus
 * †Pentamerella E – informal
 * †Pentameroides
 * PentamerusSilurian.jpg †[[Pentamerus]]
 * †Peronopora
 * †Peronopora decipiens
 * †Petrochus
 * †Petrochus conica – type locality for species
 * †Petrochus mellaria – type locality for species
 * †Petrocrania
 * †Petrocrania scabiosa
 * †Pholadomorpha
 * †Pholadomorpha pholadiformis
 * †Pholidops
 * †Pholidops subtruncata
 * †Pholidostrophia
 * †Pholidostrophia geniculata
 * †Pholidostrophia gracilis
 * †Pholidostrophia nacrea
 * †Pholidostrophia ovata
 * †Phragmolites
 * †Phragmolites slawsoni
 * †Physostoma
 * †Physostoma winchellii
 * †Physostoma Winchellii
 * †Plaesiomys
 * †Plaesiomys subquadrata
 * †Planalveolitella
 * †Planalveolitella parasitica
 * PlatycerasLoganOhio.jpg †[[Platyceras]]
 * †Platyceras bucculentum
 * †Platyceras carinatum
 * †Platyceras rarispinum
 * †Platystrophia
 * †Platystrophia acutilirata
 * †Platystrophia annieana
 * †Platystrophia clarkesvillensis
 * †Platystrophia clarksvillensis
 * †Platystrophia cypha – or unidentified related form
 * †Platystrophia moritura
 * †Plectambonites
 * †Plectambonites rugosus
 * †Plectambonites sericeus
 * †Plectonotus
 * †Plectonotus raricostatus
 * Pleurodictyum americanum Kashong.jpg †[[Pleurodictyum]]
 * †Pleurodictyum cornu
 * †Polygnathus
 * †Polygnathus varcus
 * †Primitia
 * †Primitia cincinnatiensis
 * †Primitiella
 * †Primitiella stoningtonensis
 * †Primitiella unicornis
 * Proboscina
 * †Proboscina auloporoides
 * †Productella
 * Proetus concinnus reconstruction cropped.png †[[Proetus (trilobite)|Proetus]]
 * †Proetus chambliensis
 * †Prosserella
 * †Prosserella subtransversa
 * †Protaraea
 * †Protaraea richmondensis
 * †Protarea
 * †Protarea richmondensis
 * †Protokionoceras
 * †Protoleptostrophia
 * †Protoleptostrophia lirella
 * †Protoleptostrophia perplana
 * †Pseudoatrypa
 * †Pseudoatrypa devoniana – or unidentified comparable form
 * †Pseudomphalotrochus
 * †Pseudomphalotrochus cottrelli – type locality for species
 * †Pseudomphalotrochus gibsoni – type locality for species
 * †Pseudopecopteris
 * †Pseudopecopteris avoldensis – or unidentified comparable form
 * †Psiloconcha
 * †Psiloconcha subovalis
 * †Pterinea
 * †Pterinea demissa
 * †Pterinea insueta – or unidentified related form
 * †Pterinea insuetta – or unidentified related form
 * †Ptychomphalina
 * †Ptychomphalina lucina – tentative report
 * †Ptychopteria
 * †Ptychopteria fasciulatus
 * †Ptychopteria michiganesis
 * †Ptychopteria swanni
 * †Pugnoides

R

 * †Rafinesquina
 * †Rafinesquina alternata
 * †Rafinesquina breviusculus
 * †Rafinesquina pregibbosa
 * †Rafinesquna
 * †Rafinesquna pregibbosa
 * †Rectograptus
 * †Rectograptus amplexicaulis
 * †Rectograptus peosta
 * †Retispira
 * †Retispira sullivani
 * †Rhabdocarpus
 * †Rhabdocarpus mammilaris
 * †Rhabdocarpus mansfieldi
 * †Rhabdocarpus multistriatus
 * †Rhinocaris
 * †Rhinocaris ehlersi
 * †Rhipidomella
 * †Rhipidomella penelope – or unidentified comparable form
 * †Rhipidomella trigona
 * †Rhipidomella vanuxemi
 * †Rhipidothyris
 * †Rhipidothyris B – informal
 * †Rhombotrypa
 * †Rhombotrypa quadrata
 * †Rhombotrypa subquadrata
 * †Rhynchospirina
 * †Rhynchotrema
 * †Rhynchotrema minnesotensis – or unidentified comparable form
 * †Rhynchotrema perlamellosum
 * †Rugomena
 * †Rugomena vetusta
 * †Rutkowskicrinus
 * †Rutkowskicrinus collieri – type locality for species
 * †Rutkowskicrinus patriciae
 * †Rutkowskiella – type locality for genus
 * †Rutkowskiella tumula – type locality for species

S

 * †Samaropsis
 * †Samaropsis Newberryi
 * †Samaropsis newberryi
 * Scenella.jpg †[[Scenella]] – tentative report
 * †Schizophoria
 * †Schizophoria ferronensis
 * †Schizophoria mesacarina
 * †Schizophoria tulliensis
 * †Schuchertella
 * †Scutellum
 * †Semicoscinium
 * †Semipora – tentative report
 * †Semipora ehlersi
 * †Serpulospira
 * †Serpulospira diversiformis
 * †Sigillaria
 * †Sinuites
 * †Spermatites
 * †Spermatites cylix
 * †Spermatites globosus
 * †Spermatites reticulatus
 * †Sphenophragmus
 * †Sphenophragmus nanus
 * Sphenophyllum miravallis cropped.jpg †[[Sphenophyllum]]
 * †Sphenophyllum bifurcatum
 * †Sphenophyllum cuneifolium
 * †Sphenophyllum emarginatum
 * †Sphenophyllum majus
 * †Sphenophyllum saxifragaefolium
 * †Sphenopteris
 * †Sphenopters
 * †Spinocyrtia
 * †Spinocyrtia clintoni
 * †Spinocyrtia euryteines – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Spinocyrtia granulosa
 * †Spinulicosta
 * †Spinulicosta mutocosta
 * †Spinulicosta spinulicosta
 * †Spinyplatyceras
 * †Spinyplatyceras bartlettense
 * †Spirifer – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Spirifer consors
 * †Spyroceras
 * †Stereotoechus
 * †Stereotoechus typicus – or unidentified comparable form
 * Steth pair1 cropped.jpg †[[Stethacanthus]]
 * †Stethacanthus depressus
 * †Stictoporina
 * †Stictoporina granulifera
 * †Stigmaria
 * †Stigmaria verrucosa
 * †Stigmatella
 * †Stokesoceras
 * †Stokesoceras engadinense – type locality for species
 * †Stokesoceras gracile
 * †Stokesoceras romingeri – type locality for species
 * †Straparollus
 * †Straparollus mortoni – type locality for species
 * †Streblotrypa
 * †Streblotrypa anomala
 * †Streblotrypa hamiltonensis
 * †Streptelasm
 * †Streptelasm rusticum
 * †Streptelasma
 * †Streptelasma divaricans
 * †Streptelasma huronensis
 * †Striatopora
 * †Striatopora linneana
 * †Strobeus
 * †Strobeus alternatus
 * †Stromatocerium
 * †Stromatocerium huronense
 * †Stropheodonta
 * †Stropheodonta demissa – or unidentified comparable form
 * †Strophodonta
 * †Strophodonta demissa
 * Strophomena costellata brachial.jpg †[[Strophomena]]
 * †Strophomena alpenensis
 * †Strophomena costata
 * †Strophomena crassa
 * †Strophomena elongata
 * †Strophomena erratica
 * †Strophomena extenuata
 * †Strophomena heteromys
 * †Strophomena huronensis
 * †Strophomena inaequiradiata
 * †Strophomena levidensa
 * †Strophomena neglecta
 * †Strophomena nutans – or unidentified comparable form
 * †Strophomena parvula
 * †Strophomena pentagonia
 * †Strophomena planumbona
 * †Strophomena potterensis
 * †Strophomena sulcata
 * †Strophomena tenuicosta
 * †Strophomena titan
 * †Styliolina
 * †Styliolina fissurella
 * †Sulcoretepora
 * †Sulcoretepora deissi
 * †Sulcoretepora incisurata
 * †Sulcoretepora B – informal
 * Syringoporid.jpg †[[Syringopora]]

T

 * †Technophorus
 * †Technophorus quincuncialis
 * Tentaculitid041011.jpg †[[Tentaculites]]
 * †Tentaculites bellulus
 * †Tetradella
 * †Tetradella regularis
 * †Tetradella subquadratus
 * †Tetradium
 * †Tetradium huronense
 * †Thamnopora
 * †Thamnopora alpenensis
 * †Thamnopora magniventra – type locality for species
 * †Thamnoptychia
 * †Thamnoptychia labyrinthica
 * †Thamnoptychia minuitissima
 * †Thamnoptychia silicensis
 * †Trematis
 * †Trematis rugosa
 * Triarthrus becki.jpg †[[Triarthrus]]
 * †Triarthrus eatoni
 * †Trigonacarpolithus
 * †Trigonacarpolithus typicus
 * †Trigonocarpus – report made of unidentified related form or using admittedly obsolete nomenclature
 * †Trigonocarpus Noeggerathi
 * †Trigonocarus
 * †Trimerella
 * †Trochonema
 * †Trochonema wartheni
 * †Tropidodiscus
 * †Tropidodiscus compticarinatus – type locality for species
 * †Tropidoleptus
 * †Tropidoleptus carinatus
 * †Truncalosia
 * †Truncalosia gibbosa
 * †Turbinilopsis
 * †Turbinilopsis anacarina – type locality for species
 * †Turbonitella
 * †Turbonitella trunculinoda
 * †Tylothyris
 * †Tylothyris subvaricosa

V

 * †Vanuxemia
 * †Vanuxemia noquerrwnaia
 * †Vanuxemia strattoni
 * †Vladanella
 * †Vladanella lirata – type locality for species

W

 * †Warrenella
 * †Warrenella laevis – or unidentified comparable form
 * †Whitfieldella
 * †Wisconsinella
 * †Wisconsinella clelandi – type locality for species

Z

 * †Zeilleria
 * †Zeilleria stellata
 * †Zygospira
 * †Zygospira modesta – or unidentified comparable form