Paleozoic
Selected Paleozoic taxa of Oklahoma
- † Abyssomedon – type locality for genus
- † Abyssomedon williamsi – type locality for species
Restoration of the Permian amphibian 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
- † 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 - † 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 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 morrisi – type locality for species
- † Cacops woehri – type locality for species
- † Calamites
- † Callipteris
- † Calymene
- † Calyptaulax
- † Camarotoechia
- † Camerate
- † Campbelloceras
- † Cancelloceras
- † Capnophyllum
Fossilized skeletons of the Permian reptile Captorhinus - † 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 - † Chonetes
- † Cladochonus
- † Cleiothyridina
- † Clepsydrops
- Cliona
- † Colobomycter – type locality for genus
- † Colobomycter pholeter – type locality for species
- † Composita
- † Coolinia
- † Cordania
- † Cordylodus
- † Cornulites
Mounted fossilized skeleton of the Permian synapsid (mammal precursor) Cotylorhynchus - † 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 - † 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
- † Dictyonema
- † Dimeropygiella
Life restoration of the Permian synapsid (mammal precursor) Dimetrodon - † Dimetrodon dollovianus
- † Dimetrodon limbatus – or unidentified comparable form
- † Dimetrodon loomisi
- † Dimetrodon macrospondylus
- † Diplocaulus – type locality for genus
- † Diplograptus
- † Discitoceras
- † Doleserpeton – type locality for genus
- † Domatoceras
- † Eatonia
- † Echinaria
- † Echinosphaerites
- † Ectosteorhachis
Life restoration of the Carboniferous-Permian synapsid (mammal precursor) Edaphosaurus - † Edestus – type locality for genus
- † Edmondia
- † Eodictyonella
- † Eospirifer
- † Epiphyton
- † Eryops
- † 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 - † Foerstia
- † Fragiscutum
- † Frencrinuroides
- † Fusulina
- † Gastrioceras
- † Girvanella
- † Glaphurochiton
- † Glyptopleura
- † Gnathodus
Life restoration of the Permian lungfish Gnathorhiza - † Goniatites
- † Gotlandochiton
- † Gymnophyllum
- † 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 . - † Ivoechiton
- † Jeffersonia
- † Kainops
- † Kawina
- † Kennedya
- † Kockelella
- † Krausella
- † Labidosaurikos – type locality for genus
Life restoration of the Permian reptile 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 - † 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 longiceps – type locality for species
- † Nannaroter – type locality for genus
- † Nannospondylus – type locality for genus
- † Naticopsis
- † Naticopsis transversa – type locality for species
- † Neospirifer
- † Neuropteris
- Nucula
- † Odontochile
- † Oinochoe
- † Oliveria
Life restoration of the Carboniferous-Permian synapsid (mammal precursor) 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
- † Pachylyroceras
Fossil of the trilobite Paciphacops - † Paladin
- Palaeoaplysina – tentative report
- † Paleochiton
- † Paralegoceras
- † Pasawioops – type locality for genus
- † Pecopteris
- † 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 - † Plicochonetes
- † Polygnathodella – type locality for genus
- † Polygnathus
- † Prioniodus
- † Prodentalium
- † Proetus
- † Protocaptorhinus
- † 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 - † 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 emarginatum
- † Sphenophyllum gilmorei
- † Sphenophyllum latifolium – or unidentified comparable form
- † Sphenophyllum stoukenbergi – tentative report
- † Sphenopteris
- † Spirifer
- Spirorbis
- † Streptognathodus
- † Stroboceras
Fossilized shell of the Ordovician-Silurian brachiopod 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
- † Urasterella
- † Varanodon – type locality for genus
- † Varanodon agilis – type locality for species
Life restoration of the Permian synapsid (mammal precursor) Varanops - † Varanops brevirostris – or unidentified comparable form
- † Vinella
- † Walchia
- † Watongia – type locality for genus
- † Watongia meieri – type locality for species
- † Wilkingia
- † Worthenia
- † Wurmiella
- † Xenacanthus
- Yoldia
- † Zatrachys
