List of the prehistoric life of Oklahoma

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 Alabama.

Paleozoic

Main article: List of the Paleozoic life of Oklahoma

Selected Paleozoic taxa of Oklahoma

• † Abyssomedon – type locality for genus
  • † Abyssomedon williamsi – type locality for species
• 

  Restoration of the Permian amphibian Acheloma
  † 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
• 

  Fossil of the Carboniferous horsetail relative Annularia
  † 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
• 

  Mold fossil of a shell of the Early Devonian-Late Triassic bivalve Aviculopecten
  † 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
• 

  Life restoration of the Permian amphibian Cacops
  † Cacops
  • † Cacops morrisi – type locality for species
  • † Cacops woehri – type locality for species
• † Calamites
• † Callipteris
• † Calymene
  • † Calymene clavicula
• † Calyptaulax
• † Camarotoechia
• † Camerate
• † Campbelloceras
• † Cancelloceras
• † Capnophyllum
• 

  Fossilized skeletons of the Permian reptile Captorhinus
  † Captorhinus
  • † Captorhinus aguti
• † Cardiocephalus
  • † Cardiocephalus peabodyi – type locality for species
  • † Cardiocephalus sternbergi – or unidentified comparable form
• † Carolinites
• † Ceramopora
• † Ceratiocaris
• † Ceratocephala
• † Ceraurinella
• † Ceraurus
• 

  Fossil of the Cambrian-Middle Devonian trilobite Cheirurus
  † 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
• 

  Mounted fossilized skeleton of the Permian synapsid (mammal precursor) Cotylorhynchus
  † 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
• 

  Fossilized foliage from the Carboniferous seed fern Cyclopteris
  † 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
• 

  Life restoration of the Permian synapsid (mammal precursor) Dimetrodon
  † 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
• 

  Life restoration of the Carboniferous-Permian synapsid (mammal precursor) Edaphosaurus
  † 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
• 

  Fossil of the Middle Ordovician-Late Triassic bryozoan ("moss animal") Fenestella
  † Fenestella
  • † Fenestella cestriensis
  • † Fenestella exigua
• † Foerstia
• † Fragiscutum
• † Frencrinuroides
• † Fusulina
• † Gastrioceras
• † Girvanella
• † Glaphurochiton
• † Glyptopleura
• † Gnathodus
• 

  Life restoration of the Permian lungfish Gnathorhiza
  † 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
• 

  Fossil of the Middle-Late Ordovician giant trilobite Isotelus.
  † Isotelus
• † Ivoechiton
• † Jeffersonia
• † Kainops
• † Kawina
• † Kennedya
• † Kockelella
• † Krausella
• † Labidosaurikos – type locality for genus
• 

  Life restoration of the Permian reptile Labidosaurus
  † Labidosaurus
• † Leonaspis
• † Lepidodendron
• Lingula
• † Lingulella
• † Liroceras
• † Lisca
• Lithophaga
• † Llistrofus – type locality for genus
• † Lonchodomas
• † Lutesvillia
• 

  Life restoration of the Permian snake-like amphibian Lysorophus showing speculative egg-coiling behavior
  † 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
• 

  Life restoration of the Permian synapsid (mammal precursor) Mycterosaurus
  † 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
• 

  Life restoration of the Carboniferous-Permian synapsid (mammal precursor) Ophiacodon
  † 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
• 

  Fossil of the trilobite Paciphacops
  † 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
• 

  Fossil of the Late Ordovician cystoid echinoderm Pleurocystites
  † 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
• 

  Fossilized skeleton of the Permian primitive four-limbed animal Seymouria
  † 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
• 

  Fossilized leaves and branches of the Devonian-Triassic horsetail relative Sphenophyllum
  † Sphenophyllum
  • † Sphenophyllum emarginatum
  • † Sphenophyllum gilmorei
  • † Sphenophyllum latifolium – or unidentified comparable form
  • † Sphenophyllum stoukenbergi – tentative report
• † Sphenopteris
• † Spirifer
  • † Spirifer grimesi
  • † Spirifer opimus
• Spirorbis
• † Streptognathodus
• † Stroboceras
• 

  Fossilized shell of the Ordovician-Silurian brachiopod Strophomena
  † 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
• 

  Life restoration of the Permian synapsid (mammal precursor) Varanops
  † 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

• 

  Life restoration of the Early Cretaceous theropod dinosaur Acrocanthosaurus
  † 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
• 

  Mounted fossilized skeleton of the Late Jurassic long-necked dinosaur Brontosaurus
  † 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
• 

  Life restoration of the Early Cretaceous dromaeosaur ("raptor") Deinonychus
  † Deinonychus
  • † Deinonychus antirrhopus
• † Diplodocus
• † Escharoides – tentative report
  • † Escharoides nomas – type locality for species
• † Exogyra
  • † Exogyra ponderosa
  • † Exogyra texana
• † Glyptops
• 

  Restoration of the Late Jurassic-Early Cretaceous crocodile relative Goniopholis
  † Goniopholis
  • † Goniopholis stovalli – type locality for species
• † Grallator
• † Gyronchus
  • † Gyronchus dumblei
• † Holoclemensia
  • † Holoclemensia texana
• † Hybodus
  • † Hybodus butleri
• † Kermackia
  • † Kermackia texana
• 

  Fossilized skeleton of the Late Triassic amphibian Koskinonodon
  † 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
• 

  Fossilized skeleton of the Early Cretaceous-Eocene bony fish Palaeobalistum
  † 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
• 

  Life restoration of the Miocene elephant relative Amebelodon. Margret Flinsch (1932).
  †Amebelodon
• †Amphimachairodus
  • †Amphimachairodus coloradensis
• †Aphelops
  • †Aphelops malacorhinus
• †Arctonasua
  • †Arctonasua fricki – type locality for species
• †Astrohippus
  • †Astrohippus ansae
• †Barbourofelis
  • †Barbourofelis loveorum
• Bison
  • †Bison antiquus
  • 

    Mounted fossilized skeleton of the Pleistocene Bison latifrons, or long-horned bison
    †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
• 

  Life restoration of the Pliocene-Holocene camel Camelops
  †Camelops
• Canis
  • †Canis ferox
  • †Canis latrans
• †Carpocyon
  • †Carpocyon limosus
• †Castoroides
  • †Castoroides ohioensis – or unidentified comparable form
• Chaetodipus
  • †Chaetodipus hispidus – or unidentified comparable form
• Coluber
  • †Coluber constrictor
• †Copemys
  • †Copemys mariae – type locality for species
  • †Copemys shotwelli
• †Cormohipparion
  • †Cormohipparion occidentale
• Crotalus
  • †Crotalus viridis – or unidentified comparable form
• 

  Life restoration of the Pliocene-Holocene elephant relative Cuvieronius
  †Cuvieronius
  • †Cuvieronius priestleyi
• Cynomys
  • †Cynomys ludovicianus
• Dasypus
  • †Dasypus bellus
• †Desmathyus
  • †Desmathyus brachydontus
• †Dinohippus
  • †Dinohippus leidyanus
• †Dipoides
  • †Dipoides stovalli
• †Domninoides
  • †Domninoides hessei – type locality for species
  • †Domninoides knoxjonesi – type locality for species
• Elaphe
  • †Elaphe buisi – type locality for species
  • 

    A living Pantherophis obsoletus, or black rat snake
    †Elaphe obsoleta – or unidentified comparable form
  • †Elaphe vulpina
• †Epicyon
  • †Epicyon haydeni
  • †Epicyon saevus
• Equus
  • †Equus excelsus
  • †Equus francisci
  • †Equus giganteus
  • †Equus niobrarensis
  • †Equus scotti
• 

  Life restoration of the Pleistocene bovid Euceratherium, or the shrub ox. Robert Bruce Horsfall (1913).
  †Euceratherium
  • †Euceratherium collinum – type locality for species
• †Eucyon
  • †Eucyon davisi
• Felis
  • †Felis rexroadensis
• Geochelone
• Geomys
  • †Geomys bursarius
• †Gigantocamelus
  • †Gigantocamelus spatulus
• 

  Mounted fossilized skeleton of the Pleistocene armadillo relative Glyptotherium
  †Glyptotherium
  • †Glyptotherium arizonae
• †Gomphotherium
  • †Gomphotherium obscurum
• Gopherus
• †Hemiauchenia
  • †Hemiauchenia macrocephala
• †Hesperoscalops
• †Hesperotestudo
  • †Hesperotestudo riggsi
• Heterodon
  • †Heterodon nasicus
  • †Heterodon platyrhinos
  • †Heterodon plionasicus
• †Hipparion
  • †Hipparion tehonense
• †Hippotherium
• 

  Restoration of Pliocene-Pleistocene Homotherium, or scimitar cat
  †Homotherium – type locality for genus
  • †Homotherium serum – type locality for species
• †Hypolagus
  • †Hypolagus vetus
• Lampropeltis
  • †Lampropeltis doliata
  • †Lampropeltis getulus
  • †Lampropeltis triangulum
• Lasionycteris
  • †Lasionycteris noctivagans
• †Leptodontomys
• Lepus
• Lophodytes
  • †Lophodytes cucullatus
• Lynx
  • †Lynx proterolyncis
• †Macrognathomys
  • †Macrognathomys gemmacolis
• †Mammut
• †Mammuthus
  • 

    Life restoration of a herd of Mammuthus columbi, or Columbian mammoths. The extent of the fur depicted is hypothetical. Charles R. Knight (1909).
    †Mammuthus columbi
  • †Mammuthus hayi
• Marmota
• †Megalonyx
  • †Megalonyx jeffersonii
• †Megatylopus
  • †Megatylopus matthewi
• †Merychippus
  • †Merychippus coloradense – or unidentified comparable form
• †Merychyus
  • †Merychyus novomexicanus
• Microtus
  • †Microtus ochrogaster – or unidentified comparable form
  • †Microtus pennsylvanicus
• †Miospermophilus
  • †Miospermophilus lavertyi – type locality for species
• †Mylohyus
  • †Mylohyus fossilis
• Myotis
  • †Myotis yumanensis – or unidentified comparable form
• 

  Partial fossilized mandible of the Miocene-Pliocene horse Nannippus
  †Nannippus
  • †Nannippus aztecus
  • †Nannippus lenticularis
• †Neohipparion
  • †Neohipparion eurystyle
  • †Neohipparion gidleyi
  • †Neohipparion leptode
• Neotoma
• Nerodia
• †Nimravides
  • †Nimravides thinobates – or unidentified comparable form
• †Nothodipoides
  • †Nothodipoides planus – type locality for species
• 

  Life restoration of the Pleistocene ground sloth Nothrotheriops
  †Nothrotheriops
  • †Nothrotheriops texanus
• Odocoileus
• †Oklahomalagus
  • †Oklahomalagus whisenhunti – type locality for species
• Ondatra
  • †Ondatra zibethicus
• Onychomys
  • †Onychomys leucogaster – or unidentified comparable form
• Ophisaurus
  • †Ophisaurus attenuatus
• 

  Fossilized skeleton of the Pliocene-Pleistocene ground sloth Paramylodon
  †Paramylodon
  • †Paramylodon harlani
• †Paranasua
• †Pediomeryx
  • †Pediomeryx hemphillensis
• Perognathus
  • †Perognathus mclaughlini – or unidentified comparable form
• Peromyscus
  • †Peromyscus berendsensis – type locality for species
  • †Peromyscus cochrani – or unidentified comparable form
• Pipistrellus
  • †Pipistrellus subflavus
• Pituophis
  • †Pituophis catenifer
  • †Pituophis melanoleucus
• 

  Restoration of a herd of alarmed Miocene-Pleistocene peccaries of the genus Platygonus. Charles R. Knight (1922).
  †Platygonus
  • †Platygonus vetus – or unidentified comparable form
• †Pleiolama
  • †Pleiolama vera
• †Plesiogulo
  • †Plesiogulo marshalli
• †Pliogeomys
  • †Pliogeomys buisi – type locality for species
• †Pliohippus
  • †Pliohippus nobilis
  • †Pliohippus pernix
• †Pliotaxidea
  • †Pliotaxidea nevadensis – or unidentified comparable form
• Podomys
  • †Podomys oklahomensis
• †Procamelus
  • †Procamelus grandis – or unidentified comparable form
• †Prodipodomys
• †Pronotolagus
  • †Pronotolagus apachensis
• Pseudacris
  • †Pseudacris triseriata
• Pseudemys
  • †Pseudemys hilli – type locality for species
• †Pseudhipparion
  • †Pseudhipparion gratum
  • †Pseudhipparion simpsoni
  • †Pseudhipparion skinneri
• Reithrodontomys
• †Serbelodon – or unidentified comparable form
• 

  Life restoration of the Pleistocene-Holocene saber-tooth cat Smilodon
  †Smilodon
  • †Smilodon fatalis
• Sorex
  • †Sorex arcticus
  • †Sorex cinereus
  • †Sorex palustris
• Spermophilus
  • †Spermophilus dotti
  • †Spermophilus franklinii
  • †Spermophilus rexroadensis
  • †Spermophilus richardsonii – or unidentified comparable form
  • †Spermophilus tridecemlineatus
• 

  Fossilized skeleton of the Miocene weasel Sthenictis
  Sthenictis
• Sylvilagus
• Synaptomys
  • †Synaptomys bunkeri
• Tamias
  • †Tamias striatus
• Tapirus
  • †Tapirus haysii
  • †Tapirus veroensis
• 

  Restoration of the Miocene-Pliocene rhinoceros Teleoceras
  †Teleoceras
  • †Teleoceras fossiger
  • †Teleoceras guymonense – type locality for species
  • †Teleoceras hicksi
• Terrapene
  • †Terrapene parornata – type locality for species
• †Texoceros
  • †Texoceros guymonensis – type locality for species
  • †Texoceros minorei – type locality for species
• Thamnophis
  • †Thamnophis radix
• Thomomys
  • †Thomomys talpoides
• †Tregosorex
  • †Tregosorex holmani
• †Untermannerix
  • †Untermannerix copiosus
• Vulpes
  • †Vulpes stenognathus – type locality for species
  • 

    A living Vulpes velox, or swift fox
    †Vulpes velox
• †Yumaceras
  • †Yumaceras figginsi – or unidentified comparable form
• Zapus

References

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 7 August 2017.