This list of the Paleozoic life of Ohio contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Ohio and are between 538.8 and 252.17 million years of age.
A
Contents
- †Abylea – type locality for genus
- †Abylea minuta – type locality for species
- †Acacocrinus
- †Acanthatia
- †Acanthoclema
- †Acanthonema
- †Acanthopecten
- †Acanthopecten bellosum – type locality for species
- †Acanthopecten carboniferus
- †Acanthotriletes
- †Achatella
- †Acidaspis
- †Acleistoceras – tentative report
- †Acmaeoblatta – type locality for genus
- †Acmaeoblatta lanceolata – type locality for species
- †Acriora
- †Acteonina
- †Acteonina hanseni – type locality for species
- †Actinodesma
- †Actinopteria
- †Acutichiton – type locality for genus
- †Acutichiton pyrmidalus – type locality for species
- †Adamanterpeton – type locality for genus
- †Adamanterpeton ohioensis – type locality for species
- †Aechmina
- †Aethaspis
- †Agelacrinites
- †Agelacrinites southworthi – or unidentified comparable form
- †Agnesia
- †Alaionema
- †Alaskozygopleura
- †Alatisporites
Fossilized fronds of the Carboniferous-Early Cretaceous seed fern Alethopteris - †Allocryptaspis
- †Alloiopteris
- †Allonema
- †Allonychia
- †Allorisma
- †Alveolites
- †Ambedus – type locality for genus
- †Ambedus pusilus – type locality for species
- †Ambocoelia
- †Ambonychia
- †Ambozone
- †Ambozone peoriensis – or unidentified comparable form
- †Ametroblatta
- †Ametroblatta strigosa – type locality for species
- †Ameura
- †Ammonidium
- †Amphilichas
- †Amphiscapha
Ordovician-Permian bryozoan Amplexopora - †Anaptychus – tentative report
- †Anartiocystis
- †Anaspyroceras
- †Ancienta
Fossil of the Carboniferous horsetail relative Annularia - †Anomalocrinus
- †Anomalodonta
- †Anomalotoechus
- †Anostylostroma
- †Anozyga – type locality for genus
- †Anozyga bulla – type locality for species
- †Anthracodromeus
- †Anthracodromeus longipes – type locality for species
- †Anthracopupa – type locality for genus
- †Anthracopupa ohioensis – type locality for species
Restoration of the face of the Carboniferous reptiliomorph Anthracosaurus - †Anthracosaurus lancifer – type locality for species
- †Antiquaster
- †Antiquatonia
- †Aparchites
- †Aphelakardia
- †Aphlebia
- †Apiculatasporites
- †Arabellites
Life restoration of the Carboniferous synapsid (mammal precursor) Archaeothyris - †Archegogryllus – type locality for genus
- †Archegogryllus priscus – type locality for species
- †Archinacella
- †Arcochiton – type locality for genus
- †Arcochiton raymondi – type locality for species
Fossil of the Silurian trilobite Arctinurus - †Arjamannia
- †Armenoceras
- †Arthraria
- †Arthroacantha
- †Arthropitys
- Arthropoma
- †Arthrostylus
- †Artisia
- †Ascodictyon
- †Asolanus
- †Aspidopora
- †Astartella
- †Astartella clinata – type locality for species
- †Astartella concentrica
- †Astartella varica
- †Astartella vera
- †Asterotheca
- †Atactoblatta – type locality for genus
- †Atactoblatta anomala – type locality for species
- †Atactoechus
- †Atactoechus typicus – or unidentified comparable form
- †Atactopora
- †Atactoporella
- †Ateleocystites
- †Athyris
- †Atraktoprion
- †Atrypa
Fossilized shell of the Silurian-Late Devonian brachiopod Atrypa reticularis - †Atrypa reticularus – report made of unidentified related form or using admittedly obsolete nomenclature
- †Augustoceras
- †Aulacella
- †Aulacera
- †Aulocystis
- †Aulopora
- †Austinella
Mold fossil found near Wooster of a shell of the Early Devonian-Late Triassic bivalve Aviculopecten - †Aviculopecten appalachianus – type locality for species
- †Aviculopecten columbianus – type locality for species
- †Aviculopecten coxanus
- †Aviculopecten fasciculatus
- †Aviculopecten occidentalis
- †Aviculopecten princeps
- †Aviculopecten winchelli
- †Aviculopinna
B
Contents
- †Bactrites – tentative report
- †Bactrites arkonensis – or unidentified comparable form
- Bairdia
- †Balbiniconcha
- †Baldwinonus
- †Barathrisphaeridium
- †Barbclabornia
- †Barychilina
- †Batostoma
- †Batostomella
- †Baylea
- †Baylea giffordi – or unidentified comparable form
- †Baylea inclinata – type locality for species
- †Beatricea
Fossilized shell of the Silurian-Early Triassic mollusc Bellerophon - †Bellerophon hyalina
- †Bellerophon jeffersonensis
- †Bellerophon newberryi
- †Bellerophon pelops
- †Bellerophon spergensis
- †Bellerophon stevensianus
- †Bellerophon stummi – type locality for species
- †Bellerophon whittleseyi – type locality for species
- †Belodella
- †Beloitoceras
- †Bembexia
- †Bembexia adjutor – type locality for species
- †Bembexia insolita
- Berenicea
- †Bethanyphyllum
- †Bicarina
- †Bickmorites
- †Bikocrinus
- †Billingsastraea
- †Billingsastrea
- †Blattinopsis
- †Blattinopsis americana – type locality for species
- †Blattinopsis anthracina – type locality for species
- †Blattinopsis latipennis – type locality for species
- †Bodmania
- †Bollia
- †Botryllopora
- †Botryocrinus
- †Bowmanites
- †Brachiospongia
Life restoration of the Carboniferous amphibian Brachydectes - †Brachydectes newberryi – type locality for species
- †Brockocystis
- †Broiliellus
- †Broiliellus hektotopos – type locality for species
- †Bucanella
- †Bucania
- †Bucanopsis
- †Buthotrephis
- †Byssonychia
- Bythocypris
- †Bythopora
C
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Fossilized stems from the Carboniferous-Permian horsetail relative Calamites - †Calamospora
- †Calamostachys
- †Calamostachys bisporangiata – type locality for species
- †Calamostachys germanica
- †Calamostachys interculata – type locality for species
- †Calamostachys longibracteata – type locality for species
- †Calamostachys minuta – type locality for species
- †Calamostachys recurvata – type locality for species
- †Calamostachys tuberculata
- †Calapoecia
- †Calceocrinus
- †Callipleura
- †Callipleura nobilis – or unidentified comparable form
A polished round of the permineralised Late Devonian-Carboniferous wood Callixylon - †Calloporella
- †Calostylis – tentative report
- †Calvibembexia
- †Camarotoechia
Restoration of the Middle Ordovician-Silurian nautiloid cephalopod Cameroceras feeding on an Aphetoceras, while a quartet of Cyclostomiceras swim by - †Cardiocarpon
- †Cardiomorpha
- †Carneyella
- †Caryocrinites
- †Catazone
- †Catazone eversolensis – type locality for species
- †Catazyga
Fossil of the Ordovician-Silurian tabulate coral Catenipora - †Caulopteris
- †Cayugaea
- †Cayugaea intermittens
- †Cayugaea transitorius – tentative report
- †Centroceras
- †Centrorhynchus (= Sartenaerus)
- †Ceramoporella
- †Ceratocephala
- †Ceratoikiscum
- †Ceratoikiscump
- †Ceratopsis
- †Ceraurinus
- †Ceraurus
- †Chaenomya
- †Chagrinia
- †Chagrinichnites
- †Charactoceras
- †Chasmatopora
Fossil of the Late Ordovician trilobite Chasmops - †Chaunograptus
- †Chiloporella
- †Chlidochirus
- †Chondrites
- †Chonetes
- †Chonetes aurora – tentative report
- †Chonetes deflectus
- †Chonetes minutus
- †Chonetes mucronatus – tentative report
- †Chonetina
- †Chonetinella
- †Cincinnaticrinus
- †Cincinnatidiscus
Assemblage of fossilized shells found in southern Ohio of the Ordovician brachiopod Cincinnetina - †Cirratriradites
- †Cladochonus
- †Cladopora
Fossil found in Ohio of the Late Devonian shark Cladoselache - †Clarkesvillia
- †Clathrodictyon
- †Clathrospira
- †Claudeonychia – type locality for genus
- †Claudeonychia babini – type locality for species
- †Cleionychia
- †Clemetaocrinus
- †Clevelandodendron
Assemblage of fossils of the Cambrian graptolite Climacograptus - †Clinopistha
- †Coelocaulus
- †Coelocaulus desiderata
- †Coelocaulus strebloceras – tentative report
- †Coeloclema
- †Coenites
- †Coleolus
Life restoration of the Carboniferous tetrapodomorph Colosteus - †Colosteus scutellatus – type locality for species
- †Columnaria
- †Comasphaeridium
- †Composita
- †Compsocrinus
- †Conchidium
- †Conradidium
- †Constellaria
- †Conularia
- †Convolutispora
- †Cordaianthus
- †Cordaites
- †Cordaites principalis – or unidentified comparable form
- †Cornellites
Fossil of the Middle Ordovician-Carboniferous horn coral Cornulites - †Corocrinus
- †Corynotrypa
- †Corythoecia
- †Costatulites
- †Cranaena
- Craniella
- †Crassisphaeridium
- †Crassispora
- †Crenistriella
- †Crenulazona
- †Crepipora
- †Crurithyris
- †Cryptolithus
- †Ctenacanthus
- †Ctenerpeton
- †Ctenerpeton remex – type locality for species
- †Ctenobolbina
- †Ctenodonta
- †Ctenospondylus
- †Cuffeyella
- †Cunctocrinus
- †Cunctocrinus fortunatus – type locality for species
- †Cuneamya
- †Cupularostrum
- †Cupulocrinus
- †Cycloconcha
- †Cyclocystoides
- †Cyclogranisporites
- †Cyclonema
Fossilized foliage from the Carboniferous seed fern Cyclopteris - †Cyclora
- †Cyclozyga
- †Cyclozyga attenuata – type locality for species
- †Cyclozyga mirabilis
- †Cylindrocoelia
- †Cylindrophyllum
- †Cymatiosphaera
- †Cymatonota
- †Cymatospira
- †Cymatospira alternodosa – type locality for species
- †Cymatospira montfortianus
- †Cyperites
- †Cyphotrypa
- †Cypricardinia
- Cypridina
- †Cyrtentactinia
- †Cyrtina
- †Cyrtocerina
- †Cyrtodonta
- †Cyrtodontula
- †Cyrtolites
- †Cyrtospira
Fossilized shells of the Middle-Late Devonian brachiopod Cyrtospirifer - †Cystaster
- †Cystiphylloides
- †Cystodictya
- Cythere
- Cytherella
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D
Contents
- †Dalmanella
- †Danaeites
Fossilized calyx of the Carboniferous crinoid ("sea lily") Decadocrinus - †Deceptrix
- †Dechenella
- †Dekayella
- †Dekayia
- †Deltodus
- †Deltoidospora
- †Denayella
- †Dendrocrinus
- †Derbyia
- †Dermatostroma
- †Desmoinesia
- †Devonalosia
- †Devonochonetes
- †Devonorhineoderma
- †Diaphorochroa
- †Dicalamophyllum
Life restoration of the Carboniferous amphibian Diceratosaurus - †Diceratosaurus brevirostris – type locality for species
- †Dicranopora
- †Dictyoclostus
- †Dictyonema
- †Dictyotomaria
- †Dictyotomaria capillaria
- †Dictyotomaria scitula – or unidentified comparable form
- †Diestoceras
- †Diexallophasis
- †Dinichthys
- †Dinophyllum
- †Dinorthis
- †Diphyphyllum
Life restoration of a swimming group of the Permian amphibian Diploceraspis - †Diplograptus
- Discina
- †Discotrypa
- †Dithyrocaris
- †Dithyrocaris neptuni – or unidentified comparable form
- †Ditomopyge
- †Divietipellis
Life restoration of the Silurian eurypterid ("sea scorpion") Dolichopterus - †Donaldiella
- †Donaldina
- †Donaldina bellilineata – or unidentified comparable form
- †Donaldina pygmaea – tentative report
- †Donaldina robusta – type locality for species
- †Donaldina stevensana – type locality for species
- †Dorsennidium
- †Doryblatta – type locality for genus
- †Doryblatta longipennis – type locality for species
- †Douvillina
- †Drepanella
- †Drepanoistodus
- †Drymocrinus
- †Dunbarella
- †Dunbarella knighti – or unidentified comparable form
- †Dunbarella striata
Life restoration of the Late Devonian placoderm fish Dunkleosteus - †Dunkleosteus raveri – type locality for species
- †Dvorakia
- †Dystactocrinus
- †Dystactospongia
E
Contents
- †Ecclimadictyon
- †Ecdyceras
- †Echinocaris
- †Echinocaris multinodosa
- †Echinocaris multispinosis
- †Echinocaris ohioensis – type locality for species
- †Echinocaris pulchra – type locality for species
- †Echinocaris punctata
- †Echinocaris sublevis
- †Echinocoelia
- †Echinoconchus
- †Echinolichas
- †Ecmelostoiba
- †Economolopsis
- †Ectenocrinus
- †Ecthymabrachion
- †Edmondia
- †Edmondia aspenwallensis
- †Edmondia aspinwallensis
- †Edmondia nebrascensis
- †Edmondia nodulifera – type locality for species
- †Edon
- †Elasmonema
- †Elasmonema bellatula
- †Elasmonema clarki
- †Elasmonema corrugata – type locality for species
- †Elasmonema imitator
- †Elasmonema lichas
Fossil found near Sylvania of the Middle-Late Devonian trilobite Eldredgeops - †Elegantilites – tentative report
- †Elektoriskos
- †Eliasopora
- †Elita
- †Elpe
- †Elrodoceras
- †Emmonsia
- †Endelocrinus
- †Endelocrinus kieri – type locality for species
Fossilized shells and restored appearances of the Middle-Late Ordovician nautiloid cephalopod Endoceras - †Endosporites
- †Endothyra
- †Endothyranella
- †Endothyranella inflata
- †Endothyranella intermissa
- †Endothyranella minuta – or unidentified comparable form
- †Endothyranella nitida – or unidentified comparable form
- †Endothyranella stormi – or unidentified comparable form
- †Entactinia
- †Entactinosphaera
- †Entactinosphaera diplostraca
- †Entactinosphaera dystactotata
- †Entactinosphaera echinata – tentative report
- †Entactinosphaera erebenna
- †Entactinosphaera esostrongyla
- †Entactinosphaera euthlasta
- †Entactinosphaera fredericki
- †Entactinosphaera hapala
- †Entactinosphaera hystricosa
- †Entactinosphaera inusitata
- †Entactinosphaera polyacanthina
- †Entactinosphaera riedeli
- †Entactinosphaera symphypora
- †Entactinosphaera tretactinia
- †Entactinosphaera variacanthina
- †Entactinosphaerap
- †Enteletes
- †Eochonetes
- †Eomarginifera
- †Eomyelodactylus
- †Eomylodactylus
- †Eotrophina
- †Ephelopalla
Life restoration of the Silurian-Early Devonian eurypterid ("sea scorpion") Erettopterus - †Eridoconcha
- †Eridorthis
- †Eridotrypa
- †Erisocrinus
- †Erpetosaurus
- †Erpetosaurus radiatus – type locality for species
- †Escharopora
- †Estiastra
Fossilized holdfast found in Ohio of the Silurian-Middle Devonian crinoid ("sea lily") Eucalyptocrinites - †Euchondria
- †Euchondria neglecta
- †Euchondria ohioensis – type locality for species
- †Euchondria pellucida
- †Euconospira
- †Eunicites
- †Euomphalus
- †Euphemites
- †Euphemites carbonarius
- †Euphemites enodis – type locality for species
- †Euphemites multiliratus – type locality for species
- †Euphemites nodocarinatus
- †Euphemites subglobosus
- †Euphemites vittatus
- †Eurymya
- †Euryocrinus – tentative report
Life restoration of Silurian eurypterid ("sea scorpion") Eurypterus - †Eusauropleura – type locality for genus
- †Eusauropleura digitata – type locality for species
- †Eutaxocrinus
- †Evenkiella
- †Exilisphaeridium
- †Exochoderma
F
Contents
- †Faberia
- †Faberoceras
- †Favistella
Fossil of the Late Ordovician-Permian tabulate coral Favosites - †Fayettoceras
- †Fenestella
- †Fenestrellina
- †Fistulipora
Front (left) and right side (right) views of an enrolled fossil of the Middle Ordovician-Silurian trilobite Flexicalymene - †Florinites
- †Foerstia
- †Fusispira
Assemblage of fossils of Silurian-Permian fusulinid foraminiferans
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G
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- †Gamizyga
- †Gamizyga corpulentissima
- †Gamizyga girtyi – type locality for species
- †Gamizyga morningstarae
- †Gerablattina
- †Gerablattina richmondiana – type locality for species
- †Gigantopteris – or unidentified comparable form
Fossilized calyx and partial stem of the Devonian-Carboniferous crinoid ("sea lily") Gilbertsocrinus - †Gillespieisporites
- †Girtyspira
- †Glabrocingulum
- †Glabrocingulum beedei – type locality for species
- †Glabrocingulum grayvillense
- †Glabrocingulum stellaeformis
- †Glabrocingulum wannense – or unidentified comparable form
- †Globodoma
- †Globozyga
- †Globozyga reticulata
- †Globozyga subcorpulenta – type locality for species
- †Glossites
- †Glyptocardia
Assemblage of fossils of the Middle Ordovician-Silurian crinoid ("sea lily") Glyptocrinus - †Glyptorthis
- †Glyptorthis daytonensis – type locality for species
- †Glyptorthis fausta – type locality for species
- †Glyptorthis insculpta
- †Gomphostrobus
- †Goniasma
- †Goniasma lasallense – or unidentified comparable form
- †Gonioloboceras
- †Gorbyoceras
- †Gorogonisphaeridium
- †Gosseletia
- †Gosselettia
- †Graciloceras
- †Grammysia
- †Grammysioidea
- †Granasporites
- †Granulatisporites
- †Graptodictya
Multiple views of a fossil of the Ordovician horn coral Grewingkia - †Guttatisphaeridium
- †Gypidula
H
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- †Habrostroma
- †Hallinetes
Fossil of the Ordovician bryozoan ("moss animal") Hallopora - †Halysites
- †Hamiltonella
- †Haplentactinia
- †Hawletrochus
- †Hebertella
- †Hebertocaris
- †Hederella
- †Helcionopsis
- †Helicelasma
- †Helicotoma
- †Heliolites
Fossil of the Middle Devonian horn coral Heliophyllum - †Helminthochiton
- †Helminthozyga
- †Helminthozyga costellata – type locality for species
- †Helminthozyga undulata – type locality for species
- †Helopora
- †Hemicystites
- †Hemiphragma
- †Hemizyga
- †Hemizyga attenuata
- †Hemizyga elegans – or unidentified comparable form
- †Hemizyga illineata – or unidentified comparable form
- †Heracloceras – tentative report
- †Heracloceras inelegans – tentative report
- †Hercostrophia
- †Heslerodus
- †Hessonia
- †Heterocrinus
- †Heteronema – tentative report
- †Heterophrentis
- †Heterorthina
- †Heterotrypa
Fossil of the Devonian colonial rugose coral Hexagonaria, also known as a Petoskey stone - †Hexameroceras
- †Hindella
- †Hindia
- †Hippocardia
- †Hippocardia herricki – type locality for species
- †Hippocardia hydei – type locality for species
- †Hippocardia monroica
- †Hippocardia ohioense
- †Hiscobeccus
- †Hoareicardia
- †Holoeciscus
Fossilized shells of the Ordovician-Carboniferous sea snail Holopea - †Holoptychus – or unidentified comparable form
- †Holtedahlina
- †Homotrypa
- †Homotrypella
- †Hormotoma
- †Hormotoma centervillensis – type locality for species
- †Hormotomina
- †Hudsonaster
- †Hustedia
- †Hyattidina
Fossilized shells of the Cambrian-Permian brachiopod relative Hyolitha - †Hypergonia
- †Hypergonia jonathanensis – type locality for species
- †Hyperoblastus
- †Hyphantozyga
- †Hyphantozyga cancellata – type locality for species
- †Hyphantozyga fusiforma – type locality for species
- †Hyphantozyga gracilis
- †Hyphantozyga grandis – type locality for species
- †Hyphantozyga knighti
- †Hyphantozyga perattenuata
- †Hyphantozyga pulchra
- †Hyphantozyga textilis – type locality for species
- †Hypselentoma
- †Hystriculina
I
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- †Ianthinopsis
- †Ianthinopsis melanoides – type locality for species
- †Ibanocrinus
- †Ichthyerpeton
- †Ichthyerpeton squamosum – type locality for species
- †Icriodus
- †Indospora
- †Intrapora
- †Iocrinus
- †Ischyrodonta
- †Isodectes
- †Isodectes obtusus – type locality for species
- †Isonema
- †Isorophus
- †Isorthoceras
Fossil of the Middle-Late Ordovician giant trilobite Isotelus. Isotelus is the state fossil of Ohio.
J
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K
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- †Kindleoceras
Fossilized shells of the Middle Ordovician-Permian nautiloid cephalopod Kionoceras - †Kockelella
- †Kophinocrinus – tentative report
- †Kophinocrinus magrumi – tentative report
- †Kyreocrinus
L
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- †Labechia
- †Laccoprimitia
- †Laevigatosporites
- †Lambeoceras
- †Lanthanaster
- †Lanthanaster cruciformis – type locality for species
- †Lasiograptus
- †Latericriodus
- †Latosporites
- †Lechritrochoceras
- †Leioclema
- †Leiorhynchus
- †Leiosphaeridia
- †Leiotriletes
- †Lepadocystis
- †Leperditia
- †Lepidocoleus
- †Lepidocyclus
- †Lepidocystis
External mold fossil found in Ohio of the Carboniferous tree-sized club moss relative Lepidodendron - †Lepidodendron aculeatum
- †Lepidodendron andrewsi
- †Lepidodendron jaraczewskii – or unidentified comparable form
- †Lepidodendron scutatum
- †Lepidolites
- †Lepidophloios
- †Lepidostrobophyllum
- †Leptaena
- †Leptobolus
- †Leptodesma
- †Leptodesma ausablensis
- †Leptodesma matheri – or unidentified comparable form
- †Leptodesma rhysema – type locality for species
- †Leptograptus
- †Leptophractus – type locality for genus
- †Leptophractus obsoletus – type locality for species
- †Leptopoterion
- †Leptoptygma
- †Leptoptygma newtonensis – type locality for species
- †Leptotrypa
- †Leptotrypella
- †Lescuropteris
- †Levizygopleura
- †Lichenocrinus
- †Limipecten
- †Limipecten lamellus – type locality for species
- †Limoptera
- Lingula
- †Lingulichnus
- †Lingulops
- †Linoproductus
- †Linopteris
- †Lioclemella
- †Liospira
- †Liospira affinis
- †Liospira depressum – type locality for species
- †Liroceras – tentative report
- †Lodanaria
- †Lodanaria quadricarinata – type locality for species
- †Logocrinus – tentative report
- †Logocrinus brandoni – tentative report
- †Longispina
- †Longstaffia – tentative report
- †Longstaffia centervillensis – type locality for species
- †Lopholasma
- †Lophonychia
- †Lophophyllidium
- †Lophospira
- †Lophotriletes
Life restoration of the Carboniferous tetrapod Loxomma - †Loxomma lintonensis – type locality for species
- †Loxonema
- †Loxoplocus
- †Loxoplocus gothlandicus – type locality for species
- †Lycospora
- †Lyopora
- †Lyriopecten
- †Lyrodesma
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- †Macrerpeton
- †Macrerpeton huxleyi – type locality for species
- †Macrochilina
- †Maelonoceras
- †Manitoulinoceras
Fossilized shell of the Devonian ammonoid cephalopod Manticoceras - †Manticrinus
- †Marsupiocrinus
- †Maryonychia
- †Mastigograptus
- †Mazostachys
- †Mazostachys compacta – type locality for species
- †Mediospirifer
- †Meekopinna
- †Meekospira
- †Megacanthopora
- †Megacanthopora fallacis – or unidentified comparable form
- †Megacystites
Life restoration of the Carboniferous amphibian Megalocephalus - †Megalocephalus lineolatus – type locality for species
- †Megalograptus
- †Megastrophia
- †Megistocrinus
- †Melocrinus
- †Meristospira
- †Merocrinus
- †Mesocoelia
- †Mesopalaeaster
- †Mesothyra
- †Mesotrypa
- †Metaxys
- †Metaxys fossa – type locality for species
- †Miamoceras
- †Michelinoceras
- †Micrhystridium
- †Microceras
- †Microdoma
- †Microptychis
- †Microptychis cerithiformis
- †Microptychis expetendus
- †Microptychis occabus – type locality for species
- †Microptychis turbineus
- †Microreticulatisporites
- †Milleratia
- †Mitrospermum
- †Mixoneura
- †Modiolodon
- †Modiolopsis
- Modiolus
- †Modiolus fountainensis
- †Modiolus radiatus – type locality for species
- †Modiolus waverliensis
- †Modiomorpha
- †Molgophis – type locality for genus
- †Molgophis macrurus – type locality for species
- †Monotrypa
- †Monticulipora
- †Mourlonia
Fossilized shell found in Paulding County of the Devonian brachiopod Mucrospirifer - †Mucrospirifer alpenensis
- †Mucrospirifer grabaui – or unidentified comparable form
- †Mucrospirifer mucronatus
- †Mucrospirifer prolificus
- †Multiplicisphaeridium
- †Muraticavea
- †Murchisonia
- †Murchisonia anderdoniae
- †Murchisonia dublinensis – type locality for species
- †Murchisonia gracilicrista
- †Murchisonia intermedia – type locality for species
- †Murchisonia leda
- †Murchisonia minuta
- †Murchisonia sibleyensis
- †Murchisonia subcarinata
- †Murchisonia subulata
- †Myalina
- †Myelodactylus – or unidentified comparable form
- †Mytilarca
N
Contents
- †Naevisphaeridium
- †Narthecoceras
- †Narthecoceras dunni – type locality for species
Fossilized shell of the Early Devonian – Triassic sea snail Naticopsis - †Naticopsis aequistriata – type locality for species
- †Naticopsis comperta
- †Naticopsis genevievensis
- †Naticopsis levis
- †Naticopsis ziczac – type locality for species
- †Navifusa
- †Neilsonia
- †Neochonetes
- †Neospirifer
- †Nephriticeras – tentative report
- †Nereidavus
- †Neumatoceras
Fronds of the Carboniferous seed fern Neuropteris - †Nicholsonella
- †Nicollidina
- †Nodonema
- †Nucleocrinus
- †Nucleocrinus elegans – or unidentified comparable form
Interior of a fossilized shell of the Early Ordovician-modern marine bivalve Nucula - Nuculana
- †Nucularca
- †Nuculites
- †Nuculopsis
- †Nuculopsis beyrichi
- †Nuculopsis elongata
- †Nuculopsis girtyi
- †Nuculopsis shumardana – or unidentified related form
- † Nyassa
O
Contents
Life restoration of the Carboniferous amphibian Odonterpeton - †Odonterpeton triangulare – type locality for species
- †Odontopleura
- †Odontopteris
- †Oehlertella
- †Oestocephalus – type locality for genus
- †Oestocephalus amphiuminum – type locality for species
- †Ohiocrinus
- †Olenoides
- †Onchus
- †Oncoceras
- †Onniella
- †Onychochilus
- †Onychochilus abruptum – type locality for species
- †Oomoceras
Life restoration of the Carboniferous-Permian synapsid (mammal precursor) Ophiacodon - †Ophiacodon uniformis – or unidentified comparable form
- †Opisthoptera
- †Opsiocrinus
- †Orbiculoidea
- †Orthis – tentative report
- †Orthoceras
- †Orthoceras trusitum
- †Orthoceras type locality for species – informal
- †Orthodesma
- †Orthonema
- †Orthonota
- †Orthonybyoceras – tentative report
- †Orthonychia
- †Orthonychia chesterense – tentative report
- †Orthonychia herzeri
- †Orthonychia infabricatus – type locality for species
- †Orthonychia parva
- †Orthonychia sciotoensis – type locality for species
- †Orthonychia waverlyensis
- †Orthopleura
- †Orthorhynchula
- †Ortonella
- †Oulodus
- †Oxyprora
- †Ozarkodina
P
Contents
- †Pachydictya
- †Paiderocrinus
- †Palacanthus
- †Palaeocapulus
- †Palaeocapulus equilateralis
- †Palaeocapulus morsei – type locality for species
- †Palaeoconcha
- †Palaeolima
- †Palaeoneilo
- †Palaeoneilo bedfordensis
- †Palaeoneilo bownockeri
- †Palaeoneilo constricta – or unidentified related form
- †Palaeoneilo oweni
- †Palaeonucula
- †Palaeonucula lunulata – type locality for species
- †Palaeonucula subrotundata
- †Palaeopalaemon
- †Palaeopalaemon elegans – type locality for species
- †Palaeophycus
- †Palaeoporites
- †Palaeoscenidium
- †Palaeostachya
- †Palaeostachya aperta
- †Palaeostachya decacnema
- †Palaeostachya elongata
- †Palaeostachya ovalis
- †Palaeostachya trabeculata – type locality for species
- †Palaeostylus
- †Palaeotrochus
- †Palaeozygopleura
- †Paleofavosites
- †paleoporites
- †Paleschara
- †Paliphyllum
- †Panderodus
- †Paracyclas
- †Paracyrtolites
- †Paragoniozona
- †Paragoniozona granulostriata – or unidentified comparable form
- †Parajuresania
- †Paraliospira
- †Parallelocrinus
- †Parallelocrinus sturgeoni – type locality for species
- †Parallelodon
Assemblage of the Early-Middle Devonian brachiopod Paraspirifer - †Parazyga
- †Parvohallopora
- †Pasceolus
- †Patellilabia
- †Patelliocrinus – type locality for genus
- †Patelliocrinus planus – type locality for species
- †Pattersonia
- †Paupospira
- †Paupospira bowdeni
- †Paupospira trilineata – type locality for species
- †Paupospira tropidophora
Fossils of the Late Devonian-Permian fern-like fronds Pecopteris - †Penniretepora
- †Penniretepora irregularis – or unidentified comparable form
- †Pennoceras
- †Pentamerus
- †Permophorus
- †Pernopecten
- †Peronopora
- †Petalodus
Fossilized tooth found in Athens County of the Carboniferous-Permiand shark Petalodus
- †Petigopora
- †Petraster
- †Petrocrania
- †Petrozium
- †Pharkidonotus
- †Pharkidonotus breyeri – type locality for species
- †Pharkidonotus labioreflexus – type locality for species
- †Pharkidonotus percarinatus
- †Phestia
- †Philhedra
Life restoration of the Carboniferous-Permian amphibian Phlegethontia. - †Phlegethontia linearis – type locality for species
- †Phlegethontia longissima – type locality for species
- †Pholadella
- †Pholadomorpha
- †Pholidops
- †Pholidostrophia
- †Phragmoceras
- †Phragmolites
- †Phragmolites elegans – type locality for species
- †Phragmosphaera
- †Phylloporina
- †Phyloblatta
- †Phyloblatta jeffersoniana – type locality for species
- †Phymatopleura
- †Phyrgilocrinus
- †Phyrtosaster – type locality for genus
- †Phyrtosaster casteri – type locality for species
- †Physonemus
- †Physonemus striatus – or unidentified comparable form
- †Physotomya
- †Pianodesma
- Pinna
- †Pityosporites
- †Placopterina
- †Placopterina ohioensis – type locality for species
Fossilized shell of the Ordovician brachiopod Plaesiomys - †Plagiascetus – type locality for genus
- †Plagiascetus lateralis – type locality for species
- †Plagioglypta
- †Planalveolitella
- †Planisporites
- †Planoendothyra
- †Planoendothyra associata
- †Planoendothyra evoluta
- †Planoendothyra orbiculata
- †Planoendothyra ovata – or unidentified comparable form
- †Planoendothyra whitesidei – or unidentified comparable form
Fossilized shell found near Wooster of the Silurian-Early Triassic sea snail Platyceras - †Platycoryphe
Fossilized skeleton of the Carboniferous amphibian Platyrhinops - †Platyrhinops lyelli – type locality for species
- †Platystrophia
- †Platystrophia actilirata
- †Platystrophia acutilirata
- †Platystrophia annieana
- †Platystrophia auburnensis
- †Platystrophia clarksvillensis
- †Platystrophia corryvillensis
- †Platystrophia crassa
- †Platystrophia cummingsi
- †Platystrophia cypha
- †Platystrophia elkhornensis
- †Platystrophia foerstei
- †Platystrophia hopensis
- †Platystrophia laticosta
- †Platystrophia moritura
- †Platystrophia morrowensis
- †Platystrophia nitida
- †Platystrophia pauciplicata
- †Platystrophia ponderosa
- †Platystrophia sublaticosta
- †Platystrophia wallowayi
- †Plectodina
- †Plectonotus
- †Plectorthis
- †Plethospira
Fossil of the Silurian-Carboniferous tabulate coral Pleurodictyum - †Pleuronotus
- †Pleuroptyx – type locality for genus
- †Pleuroptyx clavatus – type locality for species
- †Pleurorthoceras
- †Plexadictyon
- †Plocezyga
- †Plocezyga acuminata
- †Plocezyga conica
- †Plocezyga cordiformis
- †Plocezyga costata – type locality for species
- †Plocezyga delicata
- †Plocezyga excellens
- †Plocezyga intermedia
- †Plocezyga lineata
- †Plocezyga lirata
- †Plocezyga markae
- †Plocezyga ornata – type locality for species
- †Plocezyga ornatissima
- †Plocezyga percostata
- †Plocezyga perminuta
- †Plocezyga regularia
- †Plocezyga subnodosa
- †Plocezyga turbinata
- †Podolithus
- †Poleumita
- †Polidevcia
- †Polyentactinia
Various conodont elements of Polygnathus - †Polypora
- †Polypora valida – or unidentified comparable form
- Pontocypris
- †Poroblattina
- †Poroblattina brachyptera – type locality for species
- †Poroblattina lata – type locality for species
- †Poroblattina ohioensis – type locality for species
- †Poroblattina richmondiana – type locality for species
- †Poroblattina rotundata – type locality for species
- †Posidonia
- †Praenucula
- †Primiriopsis
- †Primitia
- †Primitiella
- †Probillingsites
- Proboscina
- †Proctothylacocrinus
- †Productus
Restoration of the Silurian trilobite Proetus - †Promopalaeaster
- †Promytilus
- †Promytilus pottsvillensis – type locality for species
- †Propora
- †Prosserella
- †Protaraea
- †Protarea
- †Protathyris – tentative report
- †Protobalanus
- †Protobalanus spinicoronatus – type locality for species
- †Protocycloceras
- †Protokionoceras
- †Protoleptostrophia
- †Protosalvinia
- †Protoscolex
Restoration based on the "Schunnemunk tree" fossil of the Silurian-Late Devonian tree-like probable fungus Prototaxites - †Pseudaviculopecten
- †Pseudoactinodictyon
- †Pseudoatrypa
- †Pseudobigalea
- †Pseudocolpomya
- †Pseudolingula
- †Pseudomonotis
- †Pseudomonotis equistriata
- †Pseudomonotis hawni
- †Pseudomonotis millhorni – type locality for species
- †Pseudomulceodens
- †Pseudooneotodus
- †Pseudophorus
- †Pseudorthoceras
- †Pseudozygopleura
- †Pseudozygopleura acuminata
- †Pseudozygopleura angustata
- †Pseudozygopleura assertonsoris
- †Pseudozygopleura baltea – type locality for species
- †Pseudozygopleura cirritus
- †Pseudozygopleura contractus
- †Pseudozygopleura deloi
- †Pseudozygopleura eximia
- †Pseudozygopleura funis
- †Pseudozygopleura girtyi
- †Pseudozygopleura gradatus
- †Pseudozygopleura irrugata
- †Pseudozygopleura kellettae – or unidentified comparable form
- †Pseudozygopleura lanceolatus
- †Pseudozygopleura limus
- †Pseudozygopleura macra – or unidentified comparable form
- †Pseudozygopleura mucronatus
- †Pseudozygopleura multicostata – or unidentified comparable form
- †Pseudozygopleura pagoda – or unidentified comparable form
- †Pseudozygopleura palus – type locality for species
- †Pseudozygopleura pandus
- †Pseudozygopleura peoriense
- †Pseudozygopleura pinquicula
- †Pseudozygopleura plummeri – type locality for species
- †Pseudozygopleura pluricostata
- †Pseudozygopleura pugonis
- †Pseudozygopleura pulchra
- †Pseudozygopleura rectus
- †Pseudozygopleura schucherti – or unidentified comparable form
- †Pseudozygopleura scitula
- †Pseudozygopleura scruposus
- †Pseudozygopleura semicostata
- †Pseudozygopleura sinuosior
- †Pseudozygopleura subulatus
- †Pseudozygopleura tenuivirga
- †Pseudozygopleura variegata
- †Psiloconcha
- †Pterinea
- †Pterinopecten
- †Pterochiton
- †Pterospermella
- †Pterotheca
Life restoration of the Silurian-Middle Devonian eurypterid ("sea scorpion") Pterygotus - †Ptilodictya
- †Ptomatis
- †Ptotosalvinia
- †Ptychocarpus
- †Ptychocrinus
- †Ptychomphalina
- †Ptychopteria
- †Ptychospirina
- †Ptyonius
- †Ptyonius marshii – type locality for species
- †Pugnax
- †Punctatisporites
- †Punctatisporties
- †Punctatosporites
- †Punctospirifer
- †Pustula
- †Pustulisphaeridium
- †Pyanomya
- †Pycnocrinus
- †Pyrenomeous
Q
Contents
R
Contents
- †Rafinesquina
- †Raistrickia
- †Ramphoprion
- †Raphistoma
- †Rasmussenoceras
- †Reinschospora
- †Renalcis
- †Reptaria
- †Reteocrinus
- †Reteporina
- †Retichonetes
- †Reticulatisporites
- †Retispira
- †Retispira fascireticulatus – type locality for species
- †Retispira tenuilineata
- †Retispira waverliensis
- †Retrorsirostra
- †Rhachicrinus
- †Rhachiopteris
- †Rhapanocrinus
- †Rhegmaphyllum
- †Rhinidictya
- †Rhinocaris
- †Rhipidomella
- †Rhipidomella pecosi
- †Rhipidomella penelope – or unidentified comparable form
- †Rhipidomella trigona
- †Rhipidomella vanuxemi
- †Rhipidothyris
Fossil of the burrow ichnogenus Rhizocorallium - †Rhombodictyon
- †Rhombopora
- †Rhombotrypa
- †Rhopolonaria
- †Rhynchopora
- †Rhynchotrema
- †Rhynchotreta
- †Rhytimya
- †Richmondoceras
- †Rizoceras
- †Ropalonaria
- †Royalella
- †Royalella quadrolirata – type locality for species
- †Royalella swallowiana – type locality for species
- †Ruedemannia
- †Ruedemannia trilix – type locality for species
- †Rugomena
- †Rugosochonetes
Fossil found in southern Ohio of the arthropod burrow ichnogenus Rusophycus
S
Contents
- †Saccella
- †Salpingostoma
- †Salpingostoma richmondensis – tentative report
- †Samaropsis
- †Sanguinolites
- †Sanguinolites cuneatus
- †Sanguinolites hekitoensis – type locality for species
Restoration of the Carboniferous amphibian Sauropleura - †Sauropleura pectinata – type locality for species
- †Schellwienella
- †Schistoceras
- †Schizambon – tentative report
- †Schizoblatta – type locality for genus
- †Schizoblatta alutacea – type locality for species
- †Schizocrania
- †Schizodus
- †Schizodus acuminatus – type locality for species
- †Schizodus affinis
- †Schizodus appressus
- †Schizodus chesterensis – or unidentified comparable form
- †Schizodus curtus
- †Schizodus subcircularis
- †Schizodus wheeleri
- †Schizolopha
- †Schizophoria
- †Schlotheimophyllum
- †Schuchertella
- †Schuchertoceras
- †Scolithos
- †Sedgwickia – tentative report
- †Semicoscinium
- †Semipora – tentative report
- †Septopora
- †Serpulites
- †Serpulospira
- †Sevillia
- †Shansiella
- †Shideleroceras
Fossilized stump of the Carboniferous-Permian club moss relative Sigillaria - †Sigillaria brardii
- †Sigillaria elegans
- †Sigillaria ficoides
- †Sigillaria lacoei
- †Sigillaria laurenciana
- †Sigillaria mamillaris
- †Sigillaria orbicularis
- †Sigillaria pileata – type locality for species
- †Sigillaria rugosa
- †Sigillariostrobus
- †Silfonocrinus
- †Silicaster
- †Similodonta – tentative report
- †Sinuites
Modern specimen of the marine bivalve Solemya - †Solemya radiata
- †Solemya sharonensis – type locality for species
- †Soleniscus
- †Soleniscus aplatus – type locality for species
- †Soleniscus klipparti
- †Soleniscus primigenia
- †Soleniscus primogenium
- †Soleniscus regularis
- †Soleniscus typicus
- †Solenomorpha
- †Solisphaeridium
- †Sowerbyella
- †Spatiopora
- †Sphenolium
- †Sphenophragmus
- †Sphenophragmus nanus – or unidentified comparable form
Fossilized leaves and branches of the Devonian-Triassic horsetail relative Sphenophyllum - †Sphenopteris
- †Sphenopteris elegans – or unidentified comparable form
- †Sphenopteris minutisecta
- †Sphenosphaera
- †Sphenosphaera centervillensis – type locality for species
- †Sphenosphaera fiscellostriata – type locality for species
- †Sphenosphaera opertus – type locality for species
- †Sphenosphaera recurvus – type locality for species
- †Sphenothallus
- †Spiloblattina
- †Spiloblattina variegata – type locality for species
- †Spinocyrtia
- †Spinocyrtia euryteines – report made of unidentified related form or using admittedly obsolete nomenclature
- †Spinosporites
- †Spinulicosta
- †Spinyplatyceras
Fossilized shell of the Late Ordovician-Late Triassic brachiopod Spirifer - †Spiromphalus
- †Spiromphalus pervius – type locality for species
- Spiropteris
- Spirorbis
- †Spiroscala
- †Spongentactinella
- †Sporangites
- †Spyroceras
- †Staufferoceras
- †Stegocoelia
- †Stegocoelia copei – or unidentified comparable form
- †Stegops
- †Stegops newberryi – type locality for species
- †Stellinium
- †Stelodictyon
- †Stereoaster
- †Stereostylus
- †Stereotoechus
- †Stereotoechus typicus – or unidentified comparable form
Life restorations of a male (foreground) and female (background) of the Late Devonian-Carboniferous Chimaera relative Stethacanthus - †Stibarocrinus
- †Stictoporella
- †Stictoporina
- †Stigmatella
- Stomatopora
- †Straparollus
- †Straparollus hecale – or unidentified comparable form
- †Straparollus rudis – or unidentified comparable form
- †Strataster
- †Streblochondria
- †Streblopteria
- †Streblotrypa
- †Streptaster
- †Streptelasma
- †Striatopora
- †Strobeus
- †Stromatocerium
- †Stromatopora
- †Strombodes
- †Strophalosia
- †Stropheodonta
- †Strophodonta
- †Strophodonta demissa – report made of unidentified related form or using admittedly obsolete nomenclature
Fossilized shell of the Ordovician-Silurian brachiopod Strophomena - †Strophostylus
- †Sturgeonospira – type locality for genus
- †Sturgeonospira tortula – type locality for species
- †Stygetoblatta – type locality for genus
- †Stygetoblatta latipennis – type locality for species
- †Styliolina
- †Stylonema
- †Subulites
- †Subulites planilateralis – type locality for species
- †Sulcoretepora
- †Synhomalonotus
- †Syntomopterus
Fossil of the Devonian tabulate coral Syringopora - †Syringostroma
- †Syringothyris
- †Syscioblatta
- †Syscioblatta anomala – type locality for species
- †Syscioblatta minor – type locality for species
- †Syscioblatta misera – type locality for species
- †Syscioblatta obscura – type locality for species
- †Syscioblatta steubenvilleana – type locality for species
- †Sysciophlebia
- †Sysciophlebia acutipennis – type locality for species
- †Sysciophlebia adumbrata – type locality for species
- †Sysciophlebia affinis – type locality for species
- †Sysciophlebia balteata
- †Sysciophlebia benedicta – type locality for species
- †Sysciophlebia hybrida – type locality for species
- †Sysciophlebia nana – type locality for species
- †Sysciophlebia obtusa – type locality for species
- †Sysciophlebia picta – type locality for species
- †Sysciophlebia rotundata – type locality for species
- †Sysciophlebia schucherti – type locality for species
- †Sysciophlebia scudderi – type locality for species
- †Sysciophlebia variegata – type locality for species
- †Sysciophlebia whitei – type locality for species
T
Contents
- †Taeniaster
- †Taeniopteris
- †Tamiobatis
- †Tanaocrinus
- †Tasmanites
- †Technophora
- †Technophorus – type locality for genus
- †Technophorus faberi – type locality for species
- †Teichichnus
- †Temnocheilus
Fossilized shell of the Early Ordovician-Late Devonian probable mollusc Tentaculites - †Tetradium
- †Tetranota
- †Tetrentactinia
- †Thamnoptychia
- †Thymospora
- †Tirocrinus
- †Tomoceras
- †Tomoceras gilliana – or unidentified comparable form
- †Torispora
- †Tornacia
- †Tornoceras
- †Toryniferella
- †Trachydomia
- †Tremanotus
- †Trematis
- †Trematopora
- †Trepospira
Fossilized shell of the Ordovician nautiloid cephalopod Treptoceras - †Triarthrus
- †Triendoceras – tentative report
- †Trigonoglossa
- †Trigrammaria
- †Trilonche
- †Trimerella
- †Triquitrites
- †Triquitrites additus
- †Triquitrites bransonii
- †Triquitrites crassus
- †Triquitrites minutus
- †Triquitrites sculptilis
- †Triquitrites spinosus
- †Triquitrites subspinosus – or unidentified comparable form
- †Triquitrites tribullatus
- †Trocholites
- †Trochonema
- †Trochonemopsis
- †Troedssonoceras
- †Tropidodiscus
- †Tropidodiscus vesculilineatus – type locality for species
- †Tropidoleptus
- †Truncatiramus – now regarded as a jr. synonym of Erettopterus
- Trypetesa
- †Trypherocrinus
- †Tuberculatosporites
Life restoration of the Carboniferous amphibian Tuditanus - †Tuditanus punctulatus – type locality for species
- †Turbocrinus
- †Turbonopsis
- †Typanocrinus
U
Contents
- †Ulrichia
- †Umbotropis
- †Umbotropis filitexta – type locality for species
- †Uncinisphaera
- †Unellium
- †Unklesbayella – type locality for genus
Fossil of the Ordovician-Devonian sea star Urasterella
V
Contents
- †Vanuxemia
- †Vanuxemia waynesvillensis – type locality for species
- †Vaupelia
- †Vermiforichnus
- †Vermiforichnus clarkei – or unidentified comparable form
- †Verrucosisporites
- †Veryhachium
- †Vesicaspora
- †Vestispora
- †Vinella
- †Vinlandostrophia
- †Vorticina
W
Contents
- †Waagenella
Fossilized foliage of the Carboniferous-Permian conifer Walchia - †Walchiostrobus
- †Walliserodus
- †Welleria – tentative report
- †Westonoceras
- †Whidbornella
- †Whiteavesia
- †Whitfieldella
- †Whitfieldoceras
- †Wilkingia
- †Wilsonites
- †Worthenia
- †Wurmiella
X
Contents
- †Xenocrinus
Illustration of a fossil of the Carboniferous millipede Xyloiulus - †Xyloiulus bairdi – type locality for species
- †Xysmacrinus
Z
Contents
- †Zascinaspis
- †Zirocrinus
- †Zittelloceras
- †Zonalosporites
Fossil of the feeding trace ichnogenus Zoophycos - †Zygocycloides
- †Zygospira
References
- Ciurca, Samuel J.; Tetlie, O. Erik (2007). "Pterygotids (Chelicerata; Eurypterida) from the Silurian Vernon Formation of New York". Journal of Paleontology. 81 (4): 725–736. doi:10.1666/pleo0022-3360(2007)081[0725:PEFTSV]2.0.CO;2. ISSN 0022-3360. S2CID 140668235.
- Dunlop, J. A., Penney, D. & Jekel, D. 2015. A summary list of fossil spiders and their relatives. In World Spider Catalog. Natural History Museum Bern, online at http://wsc.nmbe.ch , version 18.5 http://www.wsc.nmbe.ch/resources/fossils/Fossils18.5.pdf (PDF).
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
| Lists of the prehistoric life of Ohio | |
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