This list of the prehistoric life of Oklahoma contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Oklahoma.

Precambrian The Paleobiology Database records no known occurrences of Precambrian fossils in Oklahoma.

Paleozoic

Selected Paleozoic taxa of Oklahoma

†Abyssomedon – type locality for genus †Abyssomedon williamsi – type locality for species †Acheloma †Acheloma cumminsi – or unidentified comparable form †Acheloma dunni – type locality for species †Acleistorhinus – type locality for genus †Acleistorhinus pteroticus – type locality for species †Albertoceras †Alethopteris †Alethopteris serlii †Alexandrinia †Alexandrinia directa – type locality for species Ammodiscus †Amphiscapha †Anabathra †Ananaspis †Anataphrus †Angelosaurus †Angelosaurus romeri – type locality for species † Anisophyllum †Annularia †Annularia sphenophylloides †Annularia stellata †Anomphalus †Anthracoceras †Aphlebia †Archaeocidaris Archaeolithophyllum †Archeria †Archimedes †Archimedes distans †Archimedes meekanoides †Archimedes meekanus – or unidentified comparable form †Arkanites †Aspidosaurus – or unidentified comparable form †Athyris †Atrypa †Aviculopecten †Aviculopecten halensis †Aviculopecten multilineatus †Aviculopecten nodocosta – type locality for species †Avonia – tentative report †Axinolobus †Baeotherates – type locality for genus †Baeotherates fortsillensis – type locality for species †Bellerophon †Benthamaspis †Bicornella †Bilinguites †Bisatoceras – type locality for genus †Bolbocephalus †Bolosaurus †Bolosaurus grandis – type locality for species †Bolosaurus striatus †Bolterpeton – type locality for genus †Bothriocidaris †Cacops †Cacops morrisi – type locality for species †Cacops woehri – type locality for species †Calamites †Callipteris †Calymene †Calymene clavicula †Calyptaulax †Camarotoechia † Camerate †Campbelloceras †Cancelloceras †Capnophyllum †Captorhinus †Captorhinus aguti †Cardiocephalus †Cardiocephalus peabodyi – type locality for species †Cardiocephalus sternbergi – or unidentified comparable form †Carolinites †Ceramopora †Ceratiocaris †Ceratocephala †Ceraurinella †Ceraurus †Cheirurus †Chonetes †Chonetes mesoloba †Cladochonus †Cleiothyridina †Cleiothyridina orbicularis †Clepsydrops Cliona †Colobomycter – type locality for genus †Colobomycter pholeter – type locality for species †Composita †Composita mexicana †Composita rotunda †Composita subcircularis †Composita subtilita †Coolinia †Cordania †Cordania falcata †Cordylodus †Cornulites †Cotylorhynchus – type locality for genus †Cotylorhynchus bransoni – type locality for species †Cotylorhynchus romeri – type locality for species Crania †Craniops †Cravenoceras †Cricotus †Crossotelos – type locality for genus †Ctenacanthus – report made of unidentified related form or using admittedly obsolete nomenclature †Curtognathus †Cybelopsis †Cycloceras †Cyclonema †Cyclopteris †Cyphaspis †Cyrtograptus †Cystodictya †Cystodictya elegans – type locality for species †Dalmanites †Delorhynchus – type locality for genus †Delorhynchus cifellii – type locality for species †Delorhynchus priscus – type locality for species †Diacalymene †Diadectes †Dicoelosia †Dicranurus †Dicranurus hamatus †Dictyonema †Dimeropygiella †Dimetrodon †Dimetrodon dollovianus †Dimetrodon limbatus – or unidentified comparable form †Dimetrodon loomisi †Dimetrodon macrospondylus †Diplocaulus – type locality for genus †Diplocaulus magnicornis †Diplograptus †Discitoceras †Doleserpeton – type locality for genus †Domatoceras †Eatonia †Echinaria †Echinosphaerites †Ectosteorhachis †Edaphosaurus †Edaphosaurus cruciger †Edestus – type locality for genus †Edmondia †Eodictyonella †Eospirifer †Epiphyton †Eryops †Eryops megacephalus †Estheria †Eucalyptocrinites †Euryodus †Euryodus dalyae – type locality for species †Euryodus primus – or unidentified comparable form †Favosites †Fayella – type locality for genus †Feeserpeton – type locality for genus †Feeserpeton oklahomensis – type locality for species †Fenestella †Fenestella cestriensis †Fenestella exigua †Foerstia †Fragiscutum †Frencrinuroides †Fusulina †Gastrioceras †Girvanella †Glaphurochiton †Glyptopleura †Gnathodus †Gnathorhiza †Goniatites †Gotlandochiton †Gymnophyllum †Gymnophyllum wardi †Hallopora †Halysites †Hapsidopareion – type locality for genus †Hapsidopareion lepton – type locality for species †Helminthochiton †Hibbertia †Hindia †Holopea – tentative report †Huntoniatonia †Idiognathodus †Illaenus †Isotelus †Ivoechiton †Jeffersonia †Kainops †Kawina †Kennedya †Kockelella †Krausella †Labidosaurikos – type locality for genus †Labidosaurus †Leonaspis †Lepidodendron Lingula †Lingulella †Liroceras †Lisca Lithophaga †Llistrofus – type locality for genus †Lonchodomas †Lutesvillia †Lysorophus †Macroleter †Macroleter agilis – type locality for species †Marsupiocrinus †Maximites †Mcqueenoceras †Meganeuropsis †Meristella †Meristina †Metacoceras †Michelinoceras †Micraroter – type locality for genus †Micraroter erythrogeios – type locality for species †Microleter – type locality for genus †Microleter mckinzieorum – type locality for species †Micula – tentative report †Misthodotes Modiolus †Monograptus †Moravia †Mycterosaurus – type locality for genus †Mycterosaurus longiceps – type locality for species †Nannaroter – type locality for genus †Nannospondylus – type locality for genus †Naticopsis †Naticopsis transversa – type locality for species †Neospirifer †Neospirifer dunbari †Neuropteris †Neuropteris heterophylla †Neuropteris obliqua †Neuropteris rarinervis Nucula †Odontochile †Oinochoe † Oliveria †Ophiacodon †Ophiacodon major †Ophiacodon mirus – or unidentified comparable form †Ophiacodon uniformis †Opisthodontosaurus – type locality for genus †Oromycter – type locality for genus †Oromycter dolesorum – type locality for species †Orovenator – type locality for genus †Orovenator mayorum – type locality for species †Orthacanthus †Orthoceras †Oulodus †Ozarkodina †Ozarkodina confluens †Pachylyroceras †Paciphacops †Paladin Palaeoaplysina – tentative report †Paleochiton †Paralegoceras †Pasawioops – type locality for genus †Pecopteris †Pecopteris hemitelioides †Pentremites †Peripetoceras †Perryella – type locality for genus †Petalodus †Phillipsia – tentative report †Phragmolites †Pinnularia †Plaesiomys †Platyceras †Platycrinites †Platysomus †Platystrophia †Plectodonta †Pleuracanthus †Pleurocystites †Plicochonetes †Polygnathodella – type locality for genus †Polygnathus †Prioniodus †Prodentalium †Proetus †Protocaptorhinus †Protocaptorhinus pricei †Punka †Rayella †Rayonnoceras †Reedops †Remopleurides †Reteocrinus †Rhopalia †Rhynchonkos †Rhynchonkos stovalli – type locality for species Rogerella †Sagenodus †Sandia †Scytalocrinus †Seymouria †Seymouria baylorensis †Sigillaria †Sillerpeton – type locality for genus †Skenidioides Solecurtus Solemya – report made of unidentified related form or using admittedly obsolete nomenclature †Solenochilus †Solenomorpha – tentative report †Sowerbyella †Sphaerexochus †Sphaerocoryphe †Sphenophyllum †Sphenophyllum emarginatum †Sphenophyllum gilmorei †Sphenophyllum latifolium – or unidentified comparable form †Sphenophyllum stoukenbergi – tentative report †Sphenopteris †Spirifer †Spirifer grimesi †Spirifer opimus Spirorbis †Streptognathodus †Stroboceras †Strophomena †Strophomena costellata †Strophomena neglecta †Strophomena perconcava – or unidentified comparable form †Strophomena planumbona †Tainoceras †Tarphyceras †Tentaculites †Tersomius †Tersomius texensis – or unidentified comparable form †Tetrataxis Textularia †Thoracoceras †Thrausmosaurus – type locality for genus †Trimerorhachis †Trimerorhachis insignis †Urasterella †Varanodon – type locality for genus †Varanodon agilis – type locality for species †Varanops †Varanops brevirostris – or unidentified comparable form †Vinella †Walchia †Watongia – type locality for genus †Watongia meieri – type locality for species †Wilkingia †Worthenia †Wurmiella †Wurmiella excavata †Xenacanthus Yoldia †Zatrachys

Mesozoic

†Acrocanthosaurus – type locality for genus †Acrocanthosaurus atokensis – type locality for species †Albanerpeton †Albanerpeton arthridion †Allosaurus – type locality for genus †Allosaurus fragilis – type locality for species Ammobaculites †Ammobaculites subgoodlandensis – type locality for species †Apatosaurus †Arcellites †Arcellites hexapartitus – or unidentified comparable form †Astroconodon †Astroconodon denisoni – or unidentified comparable form †Astrodon †Atokasaurus – type locality for genus †Atokasaurus metarsiodon – type locality for species †Atokatheridium – type locality for genus †Atokatheridium boreni – type locality for species †Barosaurus †Bernissartia †Brachiosaurus †Brontosaurus †Brontosaurus parvus †Camarasaurus †Camptosaurus †Camptosaurus dispar †Caririchnium †Caririchnium leonaridii †Ceratodus †Ceratosaurus – tentative report Cythere †Cythere concentrica †Cythereis †Cythereis carpenterae †Cythereis mahonae †Cythereis subgoodlandensis – type locality for species Cytherella †Cytherella ovata Cytherelloidea †Cytherelloidea rhomboidalis – type locality for species †Cytherelloidea subgoodlandensis – type locality for species Cytheridea †Cytheridea amygdaloides †Cytheridea oliverensis †Cytheridea rotundus – or unidentified comparable form Cytheropteron †Cytheropteron howelli †Cytheropteron trinitiensis †Deinonychus †Deinonychus antirrhopus †Diplodocus †Escharoides – tentative report †Escharoides nomas – type locality for species †Exogyra †Exogyra ponderosa †Exogyra texana †Glyptops †Goniopholis †Goniopholis stovalli – type locality for species †Grallator †Gyronchus †Gyronchus dumblei †Holoclemensia †Holoclemensia texana †Hybodus †Hybodus butleri †Kermackia †Kermackia texana †Koskinonodon Lituotuba †Lonchidion †Lonchidion anitae †Magnoavipes †Megalosauripus †Naomichelys †Oklatheridium – type locality for genus †Oklatheridium minax – type locality for species †Oklatheridium szalayi – type locality for species Ostrea †Ostrea crenulimargo †Palaeobalistum – tentative report †Pappotherium †Pappotherium pattersoni †Paracimexomys – tentative report †Paracimexomys crossi – type locality for species Paracypris †Paracypris siliqua Patellina †Patellina subcretacea Planulina †Pleurocoelus †Pteraichnus †Ptilotodon – type locality for genus †Ptilotodon wilsoni – type locality for species Pyripora Ramphonotus †Ramphonotus pedunculatus Ramulina Reophax †Reophax subgoodlandensis – type locality for species †Saurophaganax – type locality for genus †Saurophaganax maximus – type locality for species †Sauroposeidon – type locality for genus †Sauroposeidon proteles – type locality for species †Stegosaurus †Tenontosaurus Textularia †Textularia conica Vaginulina †Vaginulina intumescens

Cenozoic

†Adelphailurus †Aelurodon †Aelurodon taxoides – or unidentified comparable form †Aepycamelus †Aepycamelus robustus †Agriotherium †Agriotherium schneideri †Alforjas †Alforjas taylori Alligator †Amebelodon †Amphimachairodus †Amphimachairodus coloradensis †Aphelops †Aphelops malacorhinus †Arctonasua †Arctonasua fricki – type locality for species †Astrohippus †Astrohippus ansae †Barbourofelis †Barbourofelis loveorum Bison †Bison antiquus †Bison latifrons – or unidentified comparable form Blarina †Blarina brevicauda †Bootherium †Bootherium bombifrons †Borophagus †Borophagus secundus †Buisnictis †Buisnictis schoffi – type locality for species †Calippus †Calippus martini – type locality for species †Calippus regulus †Camelops