# List of the prehistoric life of Texas

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

## Precambrian

The Paleobiology Database records no known occurrences of Precambrian fossils in Texas

## Paleozoic
### Selected Paleozoic taxa of Texas

* Restoration of the Permian amphibian Acheloma †Acheloma – type locality for genus
** †Acheloma cumminsi – type locality for species
* †Achistrum
** †Achistrum ludwigi – type locality for species
* †Acrodus – tentative report
** †Acrodus olsoni – type locality for species
** †Acrodus sweetlacruzensis – type locality for species
* †Actinoconchus
* †Acutichiton
* †Adamantina
* †Adrianites – tentative report
* †Agathiceras
** †Agathiceras applini – type locality for species
* †Alegeinosaurus
* †Alethopteris
* †Almites
* †Altudoceras
* †Alveus – type locality for genus
* †Amphiscapha
* †Amplexus – report made of unidentified related form or using admittedly obsolete nomenclature
* Fossilized shell of the Carboniferous-modern scallop Amusium Amusium – tentative report
* †Ananias
* †Anatsabites
* †Angelosaurus – type locality for genus
** †Angelosaurus dolani – type locality for species
* †Anisodexis
* †Annularia
** †Annularia stellata – or unidentified comparable form
* †Anomalesia
* †Anomphalus
* †Aphetoceras
* †Aphlebia
* †Apsisaurus – type locality for genus
** †Apsisaurus witteri – type locality for species
* Life restoration of the Permian reptile Araeoscelis †Araeoscelis – type locality for genus
* †Archaeocidaris
* Archaeolithophyllum
* †Archeria – type locality for genus
** †Archeria crassidisca – type locality for species
* †Archimedes
* †Arcuolimbus
* †Aristoceras
* †Armenoceras
* †Artisia
* †Aspidosaurus – type locality for genus
* †Athyris
* †Aulopora – report made of unidentified related form or using admittedly obsolete nomenclature
* Mold fossil of a shell of the Early Devonian-Late Triassic bivalve Aviculopecten †Aviculopecten
** †Aviculopecten ballingerana
** †Aviculopecten girtyi – type locality for species
** †Aviculopecten gryphus – type locality for species
** †Aviculopecten occidentalis
** †Aviculopecten sumnerensis
* †Avonia
* †Barnesoceras – type locality for genus
* †Bathyglyptus – type locality for genus
* †Bellerophon – tentative report
* †Bellerophon
** †Bellerophon graphicus
* †Bembexia
* †Bitaunioceras
* †Blountiella
* Illustration of a fossilized skull of the Permian primitive reptile Bolosaurus †Bolosaurus – type locality for genus
** †Bolosaurus major – type locality for species
** †Bolosaurus striatus – type locality for species
* †Brachydectes
* †Brachyphyllum – tentative report
* †Branneroceras
* †Broiliellus – type locality for genus
** †Broiliellus brevis – type locality for species
** †Broiliellus olsoni – type locality for species
** †Broiliellus texensis – type locality for species
* †Burenoceras
* Life restoration of the Permian amphibian Cacops †Cacops
** †Cacops aspidephorus – type locality for species
* †Calamites
** †Calamites undulatus
* †Callipteridium
* †Callipteris
** †Callipteris conferta
* †Calophyllum – tentative report
* †Camarotoechia
* †Captorhinus – type locality for genus
** †Captorhinus aguti – type locality for species
* †Carbonicola
* †Cardiocephalus – type locality for genus
** †Cardiocephalus sternbergi – type locality for species
* †Carrolla – type locality for genus
* Life restoration of the Permian synapsid (mammal precursor) Casea †Casea – type locality for genus
** †Casea broilii – type locality for species
* †Caseoides – type locality for genus
* †Caseopsis
* †Cassiavellia – type locality for genus
** †Cassiavellia galtarae – type locality for species
* †Catenipora
* †Cedaria
* †Chancelloria – tentative report
* †Chonetes
** †Chonetes flemingi – tentative report
** †Chonetes verneuilianus
* †Cibolites – type locality for genus
* †Clarkoceras
* Fossilized shell of the Middle Devonian-Permian brachiopod Cleiothyridina †Cleiothyridina
** †Cleiothyridina mulsa
** †Cleiothyridina nana
** †Cleiothyridina pilularis
** †Cleiothyridina rara
** †Cleiothyridina rectimarginata – type locality for species
* †Climacograptus
* †Clitendoceras
* †Clonograptus
* †Coenocystis – type locality for genus
* †Collemataria – type locality for genus
* Fossilized shell of the Late Devonian-Permian brachiopod Composita †Composita
** †Composita affinis
** †Composita apheles – type locality for species
** †Composita apsidata
** †Composita bucculenta – type locality for species
** †Composita costata
** †Composita cracens
** †Composita crassa – type locality for species
** †Composita discina
** †Composita emarginata
** †Composita enormis – type locality for species
** †Composita imbricata – type locality for species
** †Composita mexicana
** †Composita mira
** †Composita nucella
** †Composita ovata
** †Composita parasulcata – type locality for species
** †Composita pilula
** †Composita prospera
** †Composita pyriformis
** †Composita quantilla
** †Composita stalagmium
** †Composita strongyle – type locality for species
** †Composita subcircularis
** †Composita subtilita
* †Conjunctio
* †Conocardium – tentative report
* †Cooperoceras – type locality for genus
* †Coosella
* †Coosia
* †Cordaites
** †Cordaites principalis
* †Cotteroceras
* Life restoration of the Permian synapsid (mammal precursor) Cotylorhynchus †Cotylorhynchus
** †Cotylorhynchus hancocki – type locality for species
* Crania
* †Cravenoceras – tentative report
* †Cricotus
* †Crossotelos
* †Ctenacanthus
** †Ctenacanthus amblyxiphias – type locality for species
* †Ctenospondylus – type locality for genus
* †Cylicioscapha
* †Cypricardinia – tentative report
* †Cyptendoceras
* †Cystothalamia – type locality for genus
** †Cystothalamia megacysta
** †Cystothalamia nodulifera
* †Dadoxylon
* †Dakeoceras – tentative report
* †Dasyceps
* †Deiracephalus
* Dentalium
* †Diadectes – type locality for genus
* †Dimacrodon – type locality for genus
* Restoration of D. giganhomogenes with exposed neural spine tips †Dimetrodon – type locality for genus
** †Dimetrodon booneorum – type locality for species
** †Dimetrodon dollovianus – type locality for species
** †Dimetrodon gigashomogenes – type locality for species
** †Dimetrodon grandis – type locality for species
** †Dimetrodon kempae – type locality for species
** †Dimetrodon limbatus – type locality for species
** †Dimetrodon loomisi – type locality for species
** †Dimetrodon macrospondylus – type locality for species
** †Dimetrodon milleri – type locality for species
** †Dimetrodon natalis – type locality for species
* †Diplocaulus – type locality for genus
** †Diplocaulus magnicornis – type locality for species
* †Diraphora
* †Dissorophus – type locality for genus
** †Dissorophus multicinctus – type locality for species
* †Domatoceras
* †Driveria – type locality for genus
* †Echinaria
* †Ectenolites
* Life restoration of the Permian synapsid (mammal precursor) Edaphosaurus †Edaphosaurus – type locality for genus
** †Edaphosaurus boanerges
** †Edaphosaurus cruciger – or unidentified related form
** †Edaphosaurus pogonias – type locality for species
* †Edestus
* †Edmondia
* †Edops
** †Edops craigi
* †Ellesmeroceras
* †Empedias
* †Endoceras
* †Endolobus
* Eocaudina
* †Eosyodon – type locality for genus
* †Eothyris – type locality for genus
** †Eothyris parkeyi – type locality for species
* †Eowellerites
* †Epiphyton
* †error
* †Error
* Life restoration of the Carboniferous-Permian amphibian Eryops †Eryops – type locality for genus
** †Eryops megacephalus – type locality for species
* †Estheria
* †Euomphalus
* †Euryodus – type locality for genus
** †Euryodus primus – type locality for species
* †Exovasa – type locality for genus
** †Exovasa cystauletoides – type locality for species
* †Fenestella
* †Fusulina – report made of unidentified related form or using admittedly obsolete nomenclature
* †Gastrioceras
* †Geinitzina
* †Genevievella
* †Geragnostus
* Life restoration of the Permian frog precursor Gerobatrachus †Gerobatrachus – type locality for genus
** †Gerobatrachus hottoni – type locality for species
* †Gervillia – report made of unidentified related form or using admittedly obsolete nomenclature
* †Girvanella
* †Glaucosaurus – type locality for genus
** †Glaucosaurus megalops – type locality for species
* †Glikmanius
** †Glikmanius occidentalis
* †Gnathorhiza
* †Goniatites
* †Gorgodon – type locality for genus
** †Gorgodon minutus – type locality for species
* †Grewingkia
* †Guadalupia
** †Guadalupia auricula – type locality for species
** †Guadalupia cupulosa – type locality for species
** †Guadalupia microcamera – type locality for species
** †Guadalupia ramescens – type locality for species
** †Guadalupia vasa – type locality for species
* †Gypospirifer – type locality for genus
** †Gypospirifer condor
* †Helicoconchus – type locality for genus
* Life restoration of the Permian Chimaera relative Helicoprion †Helicoprion
** †Helicoprion davisii
* †Helminthochiton
* †Hercosestria
* †Hoffmannia – report made of unidentified related form or using admittedly obsolete nomenclature
* †Homagnostus
* †Hybodus
* †Hypseloconus
* †Icriodus
* †Incisimura – type locality for genus
** †Incisimura bella – type locality for species
* Life restoration of the Permian amphibian Isodectes †Isodectes
* †Isogramma
* †Janassa
* †Jeffersonia
* †Jinogondolella
* †Kingstonia
* †Knoxosaurus – type locality for genus
* †Kockelella
* †Komia
* †Labidosaurikos
* †Labidosaurus
* †Lambeoceras
* †Lepidophyllum
* †Levisoceras
* †Limbella
* Lingula
* †Liroceras
* †Llanoaspis
* Life restoration of the Permian snake-like amphibian Lysorophus showing speculative egg-coiling behavior †Lysorophus
* †Martinia
* †Mastersonia – type locality for genus
* †Mcqueenoceras
* †Metacoceras
* †Metalegoceras
* †Meteoraspis
* †Metoptoma
* †Michelinoceras – tentative report
* †Micraroter – tentative report
** †Micraroter erythrogeios
* †Microbaltoceras – type locality for genus
* †Minilya
* †Murchisonia
* Life restoration of the Permian synapsid (mammal precursor) Mycterosaurus †Mycterosaurus – type locality for genus
** †Mycterosaurus longiceps – type locality for species
* †Nanobamus – type locality for genus
* †Naticopsis
** †Naticopsis judithae
** †Naticopsis remex
** †Naticopsis transversa – type locality for species
* †Neldasaurus
* †Neoaganides
* †Neocalamites – or unidentified comparable form
* Fossilized shell of the Carboniferous-Permian brachiopod Neospirifer †Neospirifer
** †Neospirifer amphigyus – type locality for species
** †Neospirifer apothescelus – type locality for species
** †Neospirifer bakeri – type locality for species
** †Neospirifer cameratus – tentative report
** †Neospirifer formulosus
** †Neospirifer huecoensis – type locality for species
** †Neospirifer kansasensis
** †Neospirifer mansuetus
** †Neospirifer neali
** †Neospirifer notialis
** †Neospirifer placidus
** †Neospirifer triplicatus
** †Neospirifer venezuelensis
* †Neuropteris
** †Neuropteris cordata – tentative report
* †Nielsenoceras
* †Norwoodia
* Nucula – report made of unidentified related form or using admittedly obsolete nomenclature
* †Nybyoceras
* †Olenus
* Life restoration of the Carboniferous-Permian synapsid (mammal precursor) Ophiacodon †Ophiacodon – type locality for genus
** †Ophiacodon major – type locality for species
** †Ophiacodon retroversus – type locality for species
** †Ophiacodon uniformis – type locality for species
* †Ormoceras
* †Orodus
* †Orthacanthus
* †Ostodolepis – type locality for genus
* †Oulodus
* †Ozarkodina
* †Pachylyroceras
* †Paladin
* †Palaeoniscus – tentative report
* Pantylus †Pantylus – type locality for genus
** †Pantylus cordatus – type locality for species
* †Paraceltites
* †Parafusulina
* †Paralegoceras
* †Paraschwagerina
* †Pariotichus – type locality for genus
* †Parioxys – type locality for genus
* Patella – tentative report
* Fossils of the Late Devonian-Permian fern-like fronds Pecopteris †Pecopteris
** †Pecopteris arborescens
** †Pecopteris hemitelioides
** †Pecopteris unita
* †Pedanochiton – type locality for genus
* †Pelodosotis – type locality for genus
** †Pelodosotis elongatum – type locality for species
* †Peripetoceras
* †Petalodus
* †Phlegethontia – tentative report
* †Phonerpeton
** †Phonerpeton pricei – type locality for species
* †Pinnularia
* †Plaesiomys
* †Plagiostoma – report made of unidentified related form or using admittedly obsolete nomenclature
* †Platyceras
* Life restoration of the Carboniferous-Permian sail-backed amphibian Platyhystrix †Platyhystrix – or unidentified comparable form
* †Plectronoceras
* †Pleuronautilus
* Pleurotomaria – report made of unidentified related form or using admittedly obsolete nomenclature
* †Plicochonetes
* †Posidonia
* Priscopedatus
* †Prodentalium
* †Prostacheoceras
** †Prostacheoceras skinneri – type locality for species
* †Protocaptorhinus – type locality for genus
** †Protocaptorhinus pricei – type locality for species
* †Protorothyris – type locality for genus
** †Protorothyris archeri – type locality for species
* Life restoration of the Devonian-Permian tree fern Psaronius. Auguste Faguet (1877). †Psaronius
* †Pseudomelania – report made of unidentified related form or using admittedly obsolete nomenclature
* Pteria – report made of unidentified related form or using admittedly obsolete nomenclature
* †Pterochiton
* †Pugnax
* †Quadratia
* †Quasicaecilia – type locality for genus
* †Rananasus
* †Rayonnoceras
* †Reiszorhinus – type locality for genus
* †Retaria – report made of unidentified related form or using admittedly obsolete nomenclature
* †Rhabdiferoceras
* †Rhynchonella – report made of unidentified related form or using admittedly obsolete nomenclature
* †Ribeiria
* †Rioceras
* †Romeria – type locality for genus
** †Romeria prima – type locality for species
** †Romeria texana – type locality for species
* †Rota
* Life restoration of the Permian amphibian Rubeostratilia †Rubeostratilia – type locality for genus
* †Rugaria
* †Ruthenoceras – report made of unidentified related form or using admittedly obsolete nomenclature
* †Sagenodus
* †Sallya
* †Samaropsis
* †Sauropleura
* †Scapanops – type locality for genus
** †Scapanops neglecta – type locality for species
* †Schwagerina
* †Secodontosaurus
** †Secodontosaurus obtusidens – type locality for species
* Serpula – tentative report
* Fossilized skeleton of the Permian primitive four-limbed animal Seymouria †Seymouria – type locality for genus
** †Seymouria baylorensis – type locality for species
* †Shouchangoceras
* †Sigillaria
** †Sigillaria brardii
* †Slaugenhopia – type locality for genus
* Solemya – tentative report
* †Solenochilus
* †Solenopora
* †Spermatodus
* Life restoration of the Late Devonian-Permian Sphenacanthus †Sphenacanthus
* †Sphenophyllum
** †Sphenophyllum oblongifolium
* †Sphenopteris
* †Spica
* †Spirifer
** †Spirifer rockymontanus
* Spirorbis
* †Stearoceras
* †Steppesaurus – type locality for genus
* †Stereophallodon – type locality for genus
** †Stereophallodon ciscoensis – type locality for species
* Life restorations of a male (foreground) and female (background) of the Late Devonian-Carboniferous Chimaera relative Stethacanthus †Stethacanthus
* †Strepsodiscus
* †Strophomena
** †Strophomena neglecta
* †Syringopora – tentative report
* †Tainoceras
* †Tappenosaurus – type locality for genus
** †Tappenosaurus magnus – type locality for species
* †Tarphyceras
* †Terebratula – report made of unidentified related form or using admittedly obsolete nomenclature
* †Tersomius – type locality for genus
** †Tersomius texensis – type locality for species
* †Tesnusocaris – type locality for genus
** †Tesnusocaris goldichi – type locality for species
* Restorative portrait of the Permian synapsid (mammal precursor) Tetraceratops †Tetraceratops – type locality for genus
** †Tetraceratops insignis – type locality for species
* †Tetrataxis
* †Texoceras
* †Trichasaurus – type locality for genus
** †Trichasaurus texensis – type locality for species
* †Tricrepicephalus
* †Trimerorhachis
** †Trimerorhachis greggi – type locality for species
** †Trimerorhachis insignis – type locality for species
* †Triproetus
* Trochus – report made of unidentified related form or using admittedly obsolete nomenclature
* †Tunstallia – report made of unidentified related form or using admittedly obsolete nomenclature
* Turbo – report made of unidentified related form or using admittedly obsolete nomenclature
* †Varanops
** †Varanops brevirostris – type locality for species
* Mounted fossilized skeleton of the Permian synapsid (mammal precursor) Varanosaurus †Varanosaurus – type locality for genus
** †Varanosaurus acutirostris – type locality for species
* †Vidria
* †Waagenina
* †Waagenoceras
* †Waggoneria – type locality for genus
* †Walchia
* †Wattia – type locality for genus
* †Wilkingia
* †Worthenia
* †Wurmiella
** †Wurmiella excavata
* †Xenacanthus
* †Xyloiulus – tentative report
* Yoldia – tentative report
* Life restoration of the Permian amphibian Zatrachys †Zatrachys

## Mesozoic
### Selected Mesozoic taxa of Texas

* Fossilized shell of the Early-Late Cretaceous ammonoid cephalopod Acanthoceras †Acanthoceras
** †Acanthoceras adkinsi
** †Acanthoceras amphibolum
** †Acanthoceras barcusi
** †Acanthoceras eulessanum
** †Acanthoceras johnsonanum
** †Acanthoceras tarrantense
** †Acanthoceras wintoni
** †Acanthoceras worthense
* Acesta
* Acirsa
* Acmaea
* †Acompsoceras
* Life restoration of the Early Cretaceous theropod dinosaur Acrocanthosaurus †Acrocanthosaurus
** †Acrocanthosaurus atokensis
* Acteon
* †Acteonella
* †Adelobasileus – type locality for genus
** †Adelobasileus cromptoni – type locality for species
* †Adkinsia
* †Adocus
* †Aenona
* †Aetodactylus – type locality for genus
** †Aetodactylus halli – type locality for species
* †Agerostrea
* †Agujaceratops
** †Agujaceratops mariscalensis – type locality for species
* †Akera
* Alamosaurus †Alamosaurus
** †Alamosaurus sanjuanensis
* †Albanerpeton
** †Albanerpeton gracilis
** †Albanerpeton nexuosus
* †Allocrioceras
* Alnus
* †Alphadon
** †Alphadon halleyi – or unidentified comparable form
* †Ampullina – or unidentified comparable form
* Amusium
* †Anaklinoceras
* †Ancilla
* †Angistorhinus
** †Angistorhinus grandis
* †Angulomastacator – type locality for genus
** †Angulomastacator daviesi – type locality for species
* †Anisoceras
* Anomia
* †Anomoeodus
* †Anomotodon
* †Apachesaurus
** †Apachesaurus gregorii
* Arca
* Architectonica
* Restoration of the Late Triassic lungfish Arganodus with an anachronistic human to scale †Arganodus
** †Arganodus dorotheae – type locality for species
* Arrhoges
* †Aspidoceras
* Astarte
* Astrangia
* Astreopora – tentative report
* †Astroconodon – type locality for genus
** †Astroconodon denisoni – type locality for species
* †Astrodon
** †Astrodon johnstoni
* †Astrophocaudia – type locality for genus
** †Astrophocaudia slaughteri – type locality for species
* †Axonoceras
* Fossilized shell of the Late Cretaceous ammonoid cephalopod Baculites †Baculites
** †Baculites aquilaensis - or unidentified loosely related form
** †Baculites haresi – or unidentified comparable form
** †Baculites ovatus
** †Baculites scotti
** †Baculites tippahensis
* †Baena – report made of unidentified related form or using admittedly obsolete nomenclature
* †Banis
* Barbatia – tentative report
* †Barroisiceras
* †Basilemys
* †Belemnitella
** †Belemnitella americana
* †Belodon
* †Belonostomus
* †Bernissartia – tentative report
* †Betelgeusia – type locality for genus
** †Betelgeusia reidi – type locality for species
* †Bostrychoceras
* Botula
** †Botula carolinensis
** †Botula conchafodentis
* Life restoration of the Late Cretaceous plesiosaur Brachauchenius hunting a hesperornithiform bird †Brachauchenius
** †Brachauchenius lucasi
* Brachidontes
* †Brachychampsa
* †Brachysuchus – type locality for genus
** †Brachysuchus megalodon – type locality for species
* †Bravoceratops – type locality for genus
** †Bravoceratops polyphemus – type locality for species
* Fossil of the sauropod dinosaur footprint ichnogenus Brontopodus †Brontopodus – type locality for genus
* Busycon – tentative report
* Cadulus
* Caestocorbula
** †Caestocorbula crassaplica
** †Caestocorbula crassiplica
** †Caestocorbula suffalciata
** †Caestocorbula terramaria
* Callianassa
* †Calliomphalus
** †Calliomphalus americanus
* †Calyptosuchus – type locality for genus
** †Calyptosuchus wellesi – type locality for species
* Calyptraea
* Cancellaria
* Cantharus – tentative report
* Fossilized shell of the Cretaceous marine bivalve Caprina †Caprina
* Capulus
* Carcharias
* †Caririchnium
* Carota
* Caryophyllia
* †Caseosaurus – type locality for genus
** †Caseosaurus crosbyensis – type locality for species
* †Casierius
* †Catactegenys – type locality for genus
* †Caturus
* †Caveola
* †Cedarosaurus
** †Cedarosaurus weiskopfae
* Life restoration of the Late Triassic-Eocene lungfish Ceratodus †Ceratodus
* Cerithiella
** †Cerithiella nodoliratum – or unidentified related form
** †Cerithiella semirugatum
* Cerithium
* †Chamops
* †Champsosaurus
* †Chindesaurus
** †Chindesaurus bryansmalli
* †Chinlea
* †Chirostenotes
* †Chupacabrachelys – type locality for genus
* Cidaris
* †Cimexomys
* †Cimoliasaurus
* Life restoration of the Late Cretaceous pterosaur Cimoliopterus (left) stealing fish from another pterosaur †Cimoliopterus
** †Cimoliopterus dunni – type locality for species
* †Cimolodon
** †Cimolodon electus – or unidentified comparable form
* †Cimolomys
** †Cimolomys clarki
* †Clevosaurus – or unidentified comparable form
* †Clidastes
** †Clidastes liodontus
* Cliona
* †Coahomasuchus – type locality for genus
** †Coahomasuchus kahleorum – type locality for species
* †Coelodus
* †Coelophysis
* †Coilopoceras
** †Coilopoceras springeri
* Fossilized shell of the Late Cretaceous ammonoid Collignoniceras †Collignoniceras
** †Collignoniceras woollgari
* †Colognathus – type locality for genus
* †Coniasaurus
* †Continuoolithus
* †Conulus
* Corbicula
* Corbula
* †Coupatezia
* Crassostrea
* †Crenella
** †Crenella elegantula
** †Crenella serica
* Fossil of the Early Cretaceous-Eocene shark Cretolamna †Cretolamna
** †Cretolamna appendiculata
* †Cretorectolobus
** †Cretorectolobus olsoni – or unidentified comparable form
* †Crosbysaurus – type locality for genus
** †Crosbysaurus harrisae – type locality for species
* Cucullaea
** †Cucullaea capax
** †Cucullaea powersi
* Cuspidaria
** †Cuspidaria ampulla
** †Cuspidaria grandis
** †Cuspidaria grovensis
* †Cyathophora
* †Cyclothyris
* Cylichna
** †Cylichna incisa
* †Cymatoceras
* †Cymella
* Cyzicus – tentative report
* †Dallasaurus – type locality for genus
** †Dallasaurus turneri – type locality for species
* Dasmosmilia
** †Dasmosmilia kochii – type locality for species
* Dasyatis
* Mounted fossilized skeleton of the Late Cretaceous Alligator relative Deinosuchus †Deinosuchus
** †Deinosuchus riograndensis
** †Deinosuchus rugosus – type locality for species
* Dentalium
** †Dentalium leve
** †Dentalium pauperculum
* †Desmatosuchus
** †Desmatosuchus haplocerus
** †Desmatosuchus smalli – type locality for species
** †Desmatosuchus spurensis – type locality for species
* †Desmoceras
* Diodora – tentative report
* †Diphydontosaurus – or unidentified related form
* †Diploastrea
* Discorbis
* †Discoscaphites
** †Discoscaphites conradi
* †Doswellia
* †Douvilleiceras
* †Dreissena
* Restoration of the Late Triassic dinosaur relative Dromomeron †Dromomeron
** †Dromomeron gregorii – type locality for species
* †Dryptosaurus
* †Dufrenoyia
** †Dufrenoyia justinae
* †Durania
* †Echinocorys
* †Ecphora
* †Ectenosaurus
* †Edmontonia – or unidentified comparable form
* †Elea – tentative report
* Restoration of the Early Cretaceous-Eocene bony fish Enchodus, or the "saber-toothed herring" †Enchodus
* †Episcoposaurus – type locality for genus
** †Episcoposaurus haplocerus – type locality for species
* †Epitonium
** †Epitonium sillimani
* †Eubostrychoceras
* †Eucalycoceras
* †Eugyra
* †Euhoplites – tentative report
* †Eulima
* †Euomphaloceras
* †Eupachydiscus
* †Euspira
* †Eutrephoceras
* †Ewingia – type locality for genus
* Fossilized shell of the Jurassic-Cretaceous foam oyster Exogyra †Exogyra
** †Exogyra cancellata
** †Exogyra costata
* †Fagesia
* †Faujasia
* †Favia
* †Flexomornis – type locality for genus
** †Flexomornis howei – type locality for species
* †Flickia
* †Forbesiceras
* †Forresteria
* Fusinus
* Galeorhinus
* Gastrochaena
* Gegania
* †Gervillia
* Ginglymostoma
* Illustration of a reconstructed skull of the Late Cretaceous mosasaur Globidens †Globidens
** †Globidens dakotensis
* Globigerina
* Glossus
* Glycymeris
** †Glycymeris rotundata
* †Glyptops – tentative report
* †Gobiates
* †Gryphaea
* †Gryposaurus – tentative report
* †Gypsichnites
* †Gyronchus
* Haminoea – tentative report
* †Hamites
* †Hamulus
* †Helicoceras
** †Helicoceras navarroense
* †Hemicalypterus – tentative report
* A living Heterodontus, or bullhead shark Heterodontus
* †Heteromorpha
* Hexanchus
* Homarus
* †Hoplochelys
* †Hoploscaphites
* †Hybodus
* †Hydnophora – tentative report
* †Hypophylloceras
* †Ichthyodectes
* Restoration of the Late Cretaceous toothed bird Ichthyornis †Ichthyornis
** †Ichthyornis dispar
* †Idoceras
* †Iguanodon – or unidentified comparable form
* †Inoceramus
** †Inoceramus anomalus – or unidentified comparable form
** †Inoceramus arnoldi
** †Inoceramus arvanus
** †Inoceramus balticus
** †Inoceramus cordiformis – or unidentified comparable form
** †Inoceramus deformis
** †Inoceramus dimidius
** †Inoceramus fragilis
** †Inoceramus prefragilis
** †Inoceramus vanuxemi – tentative report
* †Irenesauripus
* †Isastrea
* †Ischyrhiza
** †Ischyrhiza avonicola
** †Ischyrhiza mira
* †Jeletzkytes
** †Jeletzkytes brevis
* †Kamerunoceras
* Life restoration at various ages of the Late Triassic amphibian Koskinonodon with an anachronistic human to scale †Koskinonodon – type locality for genus
* †Kritosaurus
* Lamna
* Latiaxis
* †Lepidotes
* Lepisosteus
* †Leptorhynchos – type locality for genus
** †Leptorhynchos gaddisi – type locality for species
* †Leptostyrax
* †Leptosuchus
** †Leptosuchus crosbiensis – type locality for species
** †Leptosuchus imperfecta – type locality for species
** †Leptosuchus studeri – type locality for species
* †Lewesiceras
* †Leyvachelys
** †Leyvachelys cipadi
* †Libognathus – type locality for genus
* Life restoration of the Late Cretaceous plesiosaur Libonectes with an anachronistic scuba diver to scale †Libonectes
** †Libonectes morgani – type locality for species
* Lima
* Limatula
* †Linearis
* Lingula
* †Linter
* †Linthia
* Linuparus
* †Lioestheria – tentative report
* Liquidambar – tentative report
* †Lissodus
* †Lithacoceras
* Lithophaga
* †Lonchidion
* Life restoration of the Late Triassic aetosaur Longosuchus †Longosuchus
** †Longosuchus meadei – type locality for species
* Lopha
** †Lopha falcata
** †Lopha mesenterica
* †Lucasuchus – type locality for genus
** †Lucasuchus hunti – type locality for species
* Lucina
* †Macrepistius
* †Magnoavipes – type locality for genus
* †Malerisaurus
* Fossilized shell of the Late Cretaceous ammonoid cephalopod Mammites †Mammites
* †Mantelliceras
** †Mantelliceras cantianum
* †Mariella
* †Martinectes
** †Martinectes bonneri
* †Mathilda
* Megalomphalus – or unidentified comparable form
* †Megalosauropus – tentative report
* Melanatria
* Membranipora
* †Meniscoessus
* †Menuites
* Mesalia
* †Mesodma
* †Metoicoceras
** †Metoicoceras geslinianum
* Life restoration of the Late Triassic amphibian Metoposaurus with an anachronistic human to scale †Metoposaurus
** †Metoposaurus bakeri – type locality for species
* †Micraster
* †Modiolus
** †Modiolus sedesclaris
** †Modiolus sedesclarus
* Monodonta – tentative report
* †Monopleura – tentative report
* †Morea
* †Mortoniceras
* Life restoration of two of the Late Cretaceous Mosasaurus †Mosasaurus
** †Mosasaurus missouriensis – tentative report
* †Mytilus
* †Naomichelys
* Natica
* Nebrius
* †Neithea
** †Neithea bexarensis
** †Neithea quinquecostata
* †Neocardioceras
** †Neocardioceras juddii
* Opalized guard of the belemnoid cephalopod Neohibolites †Neohibolites
* †Neoptychites
* †Nerinea – tentative report
* Nerita
* Neritina
* †Nostoceras
** †Nostoceras approximans
** †Nostoceras splendidum
* Nucula
** †Nucula camia
** †Nucula cuneifrons
** †Nucula percrassa
* †Nyssa
* †Odaxosaurus
** †Odaxosaurus piger
* Odontaspis
* †Oklatheridium
** †Oklatheridium minax
** †Oklatheridium szalayi
* Fossilized tooth of the Late Cretaceous giant sawfish Onchopristis †Onchopristis
* †Onchosaurus
* †Ophiomorpha
* †Ophiopsis – tentative report
* †Opis
* †Ornithomimus
* †Ostlingoceras
* Ostrea
* †Otischalkia – type locality for genus
** †Otischalkia elderae – type locality for species
* †Oxyrhina
* †Pachycheilosuchus – type locality for genus
** †Pachycheilosuchus trinquei – type locality for species
* †Pachydesmoceras
* †Pachydiscus
* Restorative portrait of the Early Jurassic synapsid (mammal precursor) Pachygenelus †Pachygenelus
* †Pachymelania
* Pagurus
* †Palaeobalistum
* †Palaeoctonus
* †Paleorhinus
** †Paleorhinus sawini – type locality for species
* †Paluxysaurus – type locality for genus. Now regarded as a junior synonym of Sauroposeidon.
** †Paluxysaurus jonesi – type locality for species. Now regarded as a junior synonym of Sauroposeidon proteles.
* †Paluxysuchus – type locality for genus
** †Paluxysuchus newmani – type locality for species
* †Panis
* Panopea
* †Pappotherium – type locality for genus
* †Paracimexomys
* †Paramicrodon – type locality for genus
* †Paranomia
* Fossilized shell of the Late Cretaceous ammonoid cephalopod Parapuzosia with a human indicating its size †Parapuzosia
* †Parasuchus
* †Paratypothorax
* †Paronychodon
** †Paronychodon lacustris – or unidentified comparable form
* †Pawpawsaurus – type locality for genus
** †Pawpawsaurus campbelli – type locality for species
* †Pecten
* †Pekinosaurus – or unidentified related form
** †Pekinosaurus olseni
* Perna – report made of unidentified related form or using admittedly obsolete nomenclature
* Pholadidea
* Fossilized shell of the Early Triassic-Pliocene marine bivalve Pholadomya Pholadomya
** †Pholadomya occidentalis
* Pholas
* †Phymosoma
* †Phytosaurus
* †Pinna
* Pitar
* †Placenticeras
** †Placenticeras meeki
* †Planocephalosaurus
* †Platecarpus
** †Platecarpus planifrons
** †Platecarpus somenensis – or unidentified comparable form
** †Platecarpus tympaniticus
* †Platyceramus
** †Platyceramus cycloides
** †Platyceramus mantelli - or unidentified loosely related form
* Life restoration of the Early-Late Cretaceous ichthyosaur Platypterygius †Platypterygius
* †Plesiosaurus
* Pleurotomaria
* †Plicatoscyllium – type locality for genus
* Plicatula
* †Plioplatecarpus – tentative report
* Polinices
* †Pollex
* †Polyptychodon
* †Poposaurus
** †Poposaurus gracilis
* †Porituberoolithus
* Restoration of the Late Triassic crocodile relative Postosuchus with an anachronistic human to scale †Postosuchus – type locality for genus
** †Postosuchus kirkpatricki – type locality for species
* †Procardia
* †Prognathodon – tentative report
* †Promystriosuchus – type locality for genus
* †Prosiren – type locality for genus
* †Protecovasaurus – type locality for genus
** †Protecovasaurus lucasi – type locality for species
* †Protoavis – type locality for genus
** †Protoavis texensis – type locality for species
* †Protocardia
* †Protohadros – type locality for genus
** †Protohadros byrdi – type locality for species
* Life restoration of the Late Cretaceous bony fish Protosphyraena †Protosphyraena
* †Pseudocorax
* †Pseudomelania
* †Pseudoperna
** †Pseudoperna congesta
* †Pteranodon – or unidentified comparable form
* †Pteria
* †Pterotrigonia
** †Pterotrigonia eufalensis
** †Pterotrigonia eufaulensis
* †Ptychotrygon
* †Puzosia
* Pycnodonte
** †Pycnodonte belli
** †Pycnodonte mutabilis
** †Pycnodonte vesicularis
* Mounted fossilized skeleton of the Late Cretaceous pterosaur Quetzalcoatlus †Quetzalcoatlus – type locality for genus
** †Quetzalcoatlus northropi – type locality for species
* †Quitmaniceras
* Raja
* †Rewaconodon – or unidentified related form
** †Rewaconodon tikiensis
* Rhinobatos
* †Rhombodus
* †Richardoestesia
** †Richardoestesia gilmorei
** †Richardoestesia isosceles – type locality for species
* †Rileymillerus – type locality for genus
* Ringicula
** †Ringicula pulchella
* Rogerella
* †Romaniceras
* Rostellaria – tentative report
* †Russellosaurus – type locality for genus
** †Russellosaurus coheni – type locality for species
* †Rutiodon
* †Sargana
* Diagram illustrating the Early Cretaceous long-necked dinosaur Sauroposeidon with anachronistic humans to scale †Sauroposeidon
** †Sauroposeidon proteles
* †Saurornitholestes
** †Saurornitholestes langstoni – or unidentified comparable form
* †Sauvagesia – tentative report
* †Scapanorhynchus
** †Scapanorhynchus texanus
* †Scapherpeton
* †Scaphites
** †Scaphites hippocrepis - or unidentified loosely related form
** †Scaphites warreni
* †Schizobasis
* Scintilla – tentative report
* †Sclerorhynchus
* Scyliorhinus
* †Selaginella – or unidentified comparable form
* †Seminola – tentative report
* †Semionotus – or unidentified comparable form
* †Senis
* Serpula
* †Serratolamna
** †Serratolamna serrata
* †Sexta
* Life restoration of the Late Triassic distant crocodilian relative Shuvosaurus †Shuvosaurus – type locality for genus
** †Shuvosaurus inexpectatus – type locality for species
* †Siderastrea
* †Sierritasuchus – type locality for genus
** †Sierritasuchus macalpini – type locality for species
* †Skolithos
* Solemya
* †Sphenodiscus
** †Sphenodiscus lobatus
** †Sphenodiscus pleurisepta
* †Spinosuchus – type locality for genus
** †Spinosuchus caseanus – type locality for species
* †Spironema
* Spondylus
* Squalicorax
** †Squalicorax kaupi
** †Squalicorax pristodontus
* Squalus
* †Squatirhina
** †Squatirhina americana
* Life restoration of the Late Cretaceous ostrich dinosaur Struthiomimus †Struthiomimus – or unidentified comparable form
* †Technosaurus – type locality for genus
** †Technosaurus smalli – type locality for species
* †Tecovasaurus – type locality for genus
** †Tecovasaurus murryi – type locality for species
* †Tecovasuchus – type locality for genus
** †Tecovasuchus chatterjeei – type locality for species
* Teinostoma
* Tellina
* †Tenea
* Life restoration of the Early Cretaceous Iguanodon relative Tenontosaurus †Tenontosaurus
** †Tenontosaurus dossi – type locality for species
* Teredolites
* †Terlinguachelys – type locality for genus
** †Terlinguachelys fischbecki – type locality for species
* †Terminonaris
** †Terminonaris robusta – or unidentified comparable form
* †Texacephale – type locality for genus
** †Texacephale langstoni – type locality for species
* †Texasetes – type locality for genus
** †Texasetes pleurohalio – type locality for species
* Textularia
* †Thamnasteria
* †Thamnoseris – tentative report
* †Thomasites
* Trachycardium
** †Trachycardium eufaulensis
* Mounted fossilized skeleton of the Late Cretaceous horned dinosaur Triceratops †Triceratops
* †Trigonia
* †Trilophosaurus – type locality for genus
** †Trilophosaurus buettneri – type locality for species
** †Trilophosaurus jacobsi
* †Trinacromerum – type locality for genus
** †Trinacromerum bentonianum – type locality for species
* †Triodus
* †Triopticus – type locality for genus
* †Trochactaeon
* Tryonia
* Fossilized shell of the Late Cretaceous ammonoid cephalopod Turrilites †Turrilites
** †Turrilites acutus
* Turritella
** †Turritella bilira
** †Turritella forgemoli – or unidentified comparable form
** †Turritella hilgardi
** †Turritella paravertebroides
** †Turritella trilira
** †Turritella vertebroides
* †Tylosaurus
** †Tylosaurus kansasensis
** †Tylosaurus nepaeolicus
** †Tylosaurus proriger – or unidentified comparable form
* †Typothorax
* Fossilized skeleton of the Late Cretaceous tyrannosaur Tyrannosaurus †Tyrannosaurus
** †Tyrannosaurus rex
* †Uktenadactylus
* Unio
* †Upogebia
* †Vancleavea
** †Vancleavea campi
* †Vascellum
* †Vascoceras
* Venericardia
* †Vinella
* Viviparus – tentative report
* Volsella
* Vulsella
* Fossilized partial skulls of the Early Cretaceous crocodilian Wannchampsus †Wannchampsus – type locality for genus
* †Wannia
** †Wannia scurriensis – type locality for species
* †Woodbinesuchus – type locality for genus
** †Woodbinesuchus byersmauricei – type locality for species
* †Wrightoceras
* Xanthosia
* †Xenacanthus – report made of unidentified related form or using admittedly obsolete nomenclature
* Xenophora
* †Xiphactinus
* †Yezoites
* Yoldia

## Cenozoic
### Selected Cenozoic taxa of Texas

* Abra
* Acanthocardia
* Acar
* Acirsa
* †Aclistomycter
* Acris
** †Acris crepitans
* Acteocina
* Acteon
* Admetula
* Adrana
* Aedes
* †Aelurodon
* Life restoration of the Miocene camel Aepycamelus, or the long-necked camel. Heinrich Harder (1920). †Aepycamelus
* Agaronia
* Agkistrodon
* †Agriocharis
* †Agriochoerus
* †Agriotherium
* †Aguascalientia
* Akera
* †Alforjas
* Aliculastrum
* †Allaeochelys – or unidentified comparable form
* Alligator
** †Alligator mississipiensis
** †Alligator mississippiensis
** †Alligator olseni
* Fossilized skeleton of the Late Cretaceous-Oligocene Alligator relative Allognathosuchus †Allognathosuchus
* †Allomorone
* Alvania
* †Amblema
** †Amblema plicata
* †Ambystoma
** †Ambystoma tigrinum
* †Amebelodon
* †Ameiurus
* Amnicola
* †Amphicyon
* †Amphimachairodus
* Amphiuma
* †Ampullina
* Amusium
* Anadara
* Life restoration of the Miocene-Pleistocene elephant relative Anancus †Anancus
* †Anchitheriomys
* †Anchitherium
* Ancilla
* †Angelarctocyon
** †Angelarctocyon australis – type locality for species
* †Annona
* Anodontia
* Anomia
* Antalis
* Anthonomus – tentative report
* Antillophos
* Antrozous
** †Antrozous pallidus
* †Aphelops
* †Aplexia
* Aplodinotus
** †Aplodinotus grunniens
* Aquila
** †Aquila chrysaetos
* Arca
* †Archaeohippus
* †Archaeotherium
* Architectonica
* †Arctocyon
* Restoration of an Arctodus, or short-faced bear, with a human to scale †Arctodus
** †Arctodus simus
* †Arctonasua
* Argobuccinum
* Argyrotheca
* Arius – or unidentified comparable form
* Arizona
** †Arizona elegans
* †Artocarpus
* Astarte
* Asthenotoma
* †Astrohippus
* Athleta
* Atlanta
* Atractosteus
** †Atractosteus spatula
** †Atractosteus tristoechus – tentative report
* Atrina
* Fossilized shell of the Paleocene-Miocene nautiloid cephalopod Aturia †Aturia
* Atys
* †Australocamelus
* †Awateria
* Baiomys
* †Baiotomeus
** †Baiotomeus douglassi
* Balanophyllia
* Balanus
* †Baluchicardia
* Bankia
* Barbatia
* †Barbourofelis
** †Barbourofelis whitfordi
* Bassariscus
* †Bathygenys
* Bathytoma
** †Bathytoma nonplicata – or unidentified comparable form
* †Batrachosauroides
* Bela – report made of unidentified related form or using admittedly obsolete nomenclature
* †Belosaepia
* †Belosepia
* Bison
** †Bison antiquus
** Mounted fossilized skeleton of the Pleistocene Bison latifrons, or long-horned bison †Bison latifrons
* Bittiolum – report made of unidentified related form or using admittedly obsolete nomenclature
* Bittium
* †Blancocamelus
* Blarina
** †Blarina brevicauda – or unidentified comparable form
* †Blastomeryx
* †Boavus – tentative report
* †Bonellitia
* †Borealosuchus
* Restoration of two of the Miocene-Pliocene bone-crushing dog genus Borophagus preying on a camel. Jay Matternes (1964). †Borophagus
** †Borophagus diversidens
** †Borophagus hilli – type locality for species
** †Borophagus pugnator – or unidentified comparable form
** †Borophagus secundus
* †Boverisuchus
** †Boverisuchus vorax – or unidentified comparable form
* Brachidontes
* †Brachyhyops
* †Brachyrhynchocyon
* Bregmaceros
* †Bryozoan
* Bufo
** †Bufo cognatus
** †Bufo woodhousei
* Bulimulus
** †Bulimulus dealbatus
* Bullia
* Cadulus
* Caecum – or unidentified comparable form
* Caestocorbula
* †Calappilia
* †Calippus
* Callianassa
* Calyptraea
* Mounted fossilized skeleton of the Pliocene-Holocene camel Camelops †Camelops
** †Camelops hesternus – type locality for species
** †Camelops minidokae
* Cancellaria
* Candona
* Canis
** †Canis armbrusteri
** †Canis dirus
** †Canis edwardii
** †Canis latrans
** †Canis lepophagus – type locality for species
* Cantharus
* Fossilized skeleton of the Pleistocene dwarf pronghorn Capromeryx †Capromeryx
* Capulus
* Carapus
* Carcharhinus
* †Carpocyon
* Carychium
** †Carychium exiguum
* Caryophyllia
* Castor
** †Castor canadensis
* Catagonus
* †Caveola
* Celtis
* Centropomus – tentative report
* Life restoration of the Miocene-Pleistocene horned gopher Ceratogaulus. Robert Bruce Horsfall (1913). †Ceratogaulus
** †Ceratogaulus anecdotus – or unidentified comparable form
* †Cerdocyon
* Cerithiella
* Cerithiopsis
* Cerithium – tentative report
* Chaetodipus
** †Chaetodipus hispidus
* Chama
* Charina
* †Charophyte
* Fossilized cranium of the Pliocene-Pleistocene hyena Chasmaporthetes †Chasmaporthetes
* Chironomus
* Chlamys
* †Chriacus
* †Cimolodon
* Cirsotrema
* Cissus
* Clavilithes
* Clavus – tentative report
* Closia
* Clypeaster
* Cochlespira
* Cochliolepis
* †Colodon
* Coluber
** A living Coluber constrictor, or eastern racer †Coluber constrictor
* Colubraria
* Columbella – report made of unidentified related form or using admittedly obsolete nomenclature
* †Colwellia
* †Combretum
* Cominella – or unidentified comparable form
* Conomitra
* Conus
* Corbicula
* Corbula
* †Cormohipparion
* †Corvina
* Corvus
** †Corvus brachyrhynchos
* †Coryphodon
* Restoration of the Miocene palaeomerycid Cranioceras, a relative of modern deer, with anachronistic human to scale †Cranioceras
* Crassostrea
** †Crassostrea contracta
* Cratogeomys
** †Cratogeomys castanops
* Crenella
* †Cristellaria
* Crotalus
** †Crotalus atrox
** †Crotalus horridus
* Crotaphytus
** †Crotaphytus collaris
** †Crotaphytus reticulatus
* Cryptotis
** †Cryptotis parva
* Cucullaea
* Culex
* Cuna
* Cuspidaria
** †Cuspidaria grandis
* Life restoration of the Pliocene-Holocene elephant relative Cuvieronius †Cuvieronius
* Cyclammina
* Cylichna
* †Cylindracanthus
* Cyllene – or unidentified comparable form
* †Cynarctoides
* †Cynarctus
* Cynomys
** †Cynomys ludovicianus
* Cypraea
* Cypraedia
* Cythara
* †Daphoenictis
* Life restoration of the Miocene bear-dog Daphoenodon †Daphoenodon
* †Daphoenus
** †Daphoenus lambei – or unidentified comparable form
* Dasyatis
* Dasypus
** †Dasypus bellus
* Dentalium
* Dermatemys
* †Desmatippus
* †Diaphyodus
* †Dibelodon
* †Diceratherium
* Didelphis
** †Didelphis marsupialis
* †Dinofelis
* †Dinohippus
* †Dinohyus
** †Dinohyus hollandi
* Diplotaxis – or unidentified comparable form
* Dipodomys
** †Dipodomys merriami
** †Dipodomys ordii
** †Dipodomys spectabilis
* †Discradisca
* Disonycha
* †Dolicholatirus
* Dorsanum
* Illustration of the fossilized jaws and teeth of the Eocene brontothere mammal Duchesneodus †Duchesneodus
* †Echmatemys
* Elaphe
** †Elaphe guttata
** †Elaphe obsoleta
* Eleutherodactylus
** †Eleutherodactylus augusti
* †Ellisella
* Emarginula – or unidentified comparable form
* Endochironomus
* †Eomellivora
* †Eosurcula
* Epicauta
* Mounted fossilized skeleton of the Miocene bone-crushing dog Epicyon †Epicyon
** †Epicyon haydeni
* †Epihippus
* Epitonium
* Eptesicus
** †Eptesicus fuscus
* Equus
** †Equus alaskae – or unidentified comparable form
** †Equus conversidens
** †Equus francisci – type locality for species
** †Equus giganteus
** †Equus idahoensis
** †Equus scotti – type locality for species
** †Equus semiplicatus
** Fossilized skeleton of the Pliocene-Pleistocene horse Equus simplicidens, also known as the Hagerman horse or American zebra †Equus simplicidens
** †Equus occidentalis
* Erethizon
** †Erethizon dorsatum
* †Eucyon
** †Eucyon davisi
* Eulima
* Eumeces
** †Eumeces fasciatus
** †Eumeces obsoletus
* †Euonymus
* Eupleura
* Euspira
* †Eutrephoceras
* †Exilia
* Fasciolaria – tentative report
* Felis
* †Ficopsis
* A living Ficus, or fig tree Ficus
* Flabellum
* †Floridachoerus – tentative report
* †Floridatragulus
* Formica
* Fossaria
* Fulgurofusus
* †Fusconaia
* Fusinus
* Fustiaria
* Gadila
* Galeocerdo
* Galeodea
* Gastrocopta
** †Gastrocopta armifera
** †Gastrocopta contracta
** †Gastrocopta pellucida
** †Gastrocopta pentodon
* †Gavialosuchus
* Gegania
* Geochelone
* Geomys
** †Geomys bursarius
* †Gigantocamelus
* †Glossotherium
* Glycymeris
* Glyptoactis
* †Glyptotherium
** †Glyptotherium texanum
* Glyptozaria
* †Gnathabelodon
* †Gomphotherium
* †Goniobasis
* Gopherus – type locality for genus
** †Gopherus polyphemus – type locality for species
* Graptemys
** †Graptemys geographica
* Gregariella
* †Gulfoceras
* †Gustafsonia
* Guttulina
* Gyraulus
** †Gyraulus parvus
* †Hadrianus
* Fossilized mandible of the Eocene horse Haplohippus †Haplohippus
* Harpa
* †Harpactocarcinus
* †Harpagolestes
* Hastula
* Haustator
* Hawaiia
** †Hawaiia minuscula
* Life restoration of the Pleistocene pronghorn Hayoceros †Hayoceros
* Helicina
** †Helicina orbiculata
* Helicodiscus
** †Helicodiscus parallelus
* Helisoma
** †Helisoma anceps
** †Helisoma trivolvis
* Heloderma
* †Hemiauchenia
** †Hemiauchenia macrocephala
* †Herpetotherium
* †Hesperotestudo
* †Heteraletes
* Heterodon
** A living Heterodon nasicus, or Western hognose snake †Heterodon nasicus – or unidentified comparable form
** †Heterodon platyrhinos – or unidentified comparable form
* †Heteromeryx
* Hexaplex
* †Hipparion
* †Hippidion
* Hippodamia
** †Hippodamia convergens – tentative report
* Hipponix
* †Hippotherium
* Holbrookia
* †Holmesina
* Restoration of Pliocene-Pleistocene Homotherium, or scimitar cat †Homotherium
** †Homotherium serum
* †Hyaenodon
** †Hyaenodon crucians
** †Hyaenodon horridus – or unidentified comparable form
** †Hyaenodon montanus
** †Hyaenodon raineyi
** †Hyaenodon vetus – or unidentified comparable form
* Hyla
* †Hyopsodus
* Hyotissa
* †Hypertragulus
* †Hypohippus
* †Hypolagus
* †Hyrachyus
* †Hyracodon
* †Hyracotherium
** †Hyracotherium vasacciense
* Ictalurus
** †Ictalurus punctatus
* †Ictiobus
* Fossilized skull of the Miocene bear Indarctos †Indarctos
* †Inga
* †Ischyrocyon
* †Ischyromys
* Isognomon
* †Jefitchia – type locality for genus
* Juglans
* †Kalobatippus
* Kinosternon
** †Kinosternon flavescens
* Kuphus
* †Lacunaria
* †Lambdoceras
* †Lambertocyon
** †Lambertocyon eximius
* A living Lampropeltis getula, or eastern kingsnake Lampropeltis
** †Lampropeltis getulus
** †Lampropeltis triangulum
* Lasionycteris
** †Lasionycteris noctivagans
* Lasiurus
** †Lasiurus borealis
* Latirus
* †Ledina
* †Leea
* Lepisosteus
** †Lepisosteus spatula – or unidentified comparable form
* Lepomis
** †Lepomis cyanellus – or unidentified comparable form
* †Leptictis
* Illustration of a fossilized skull of the Oligocene-Miocene dog Leptocyon †Leptocyon
* †Leptoreodon
* Lepus
** †Lepus californicus
* Limacina
* Limaria
* †Limnenetes
* †Linthia
* Lithophaga
* Litiopa
* Littorina
* †Longirostromeryx
* Shell of a Lovenia sea urchin Lovenia
* Lucina
* Lunatia – report made of unidentified related form or using admittedly obsolete nomenclature
* Lunularia – tentative report
* Lymnaea
* Lynx
** †Lynx rufus
* Lyria
* Lytta
* †Machairodus
* Macrocallista
* Mactra
* Madrepora
* Magnolia
* †Mahgarita
* †Mammut
** †Mammut americanum
* †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
* Marginella
* Marmota
** †Marmota flaviventris
* Martes
* Martesia
* †Mathilda – tentative report
* †Mathilda – or unidentified comparable form
* †Mathilda
* †Mauricia
* †Megalictis – tentative report
* †Megalonyx
** †Megalonyx jeffersonii – or unidentified comparable form
** †Megalonyx leptostomus
* Restoration of the Pliocene-Holocene ground sloth Megatherium. Robert Bruce Horsfall (1913). †Megatherium
* †Megatylopus
* Melanella
* †Menetus
* †Menoceras
* †Menops
* Mephitis
** †Mephitis mephitis
* Meretrix
* †Merychippus
** †Merychippus sejunctus
* †Merychyus
* Restoration of the Eocene-Oligocene oreodont mammal Merycoidodon. Heinrich Harder (1920). †Merycoidodon
* Mesalia
* †Mescalerolemur – type locality for genus
** †Mescalerolemur horneri – type locality for species
* Mesodesma
* †Mesodma
** †Mesodma pygmaea – or unidentified comparable form
** †Mesodma thompsoni
* †Mesohippus
* †Metalopex
* Restoration of the Eocene-Miocene swamp rhinoceros Metamynodon. Charles R. Knight (1896). †Metamynodon
* Metula
* †Michela
* †Michenia
* Microdrillia
* Micropterus
* †Microsyops
* †Microtomarctus
* Microtus
** †Microtus mexicanus
** †Microtus pennsylvanicus
** †Microtus pinetorum
* Micrurus
** †Micrurus fulvius
* †Mimetodon
* †Miocyon
* †Miohippus
* †Miracinonyx
** †Miracinonyx inexpectatus – or unidentified comparable form
** †Miracinonyx studeri
* Mitrella
* †Mixotoxodon
* Modiolus – tentative report
* †Moropus
* †Morrillia
* Murex
* Mustela
** †Mustela vison
* Myctophum
* Myliobatis
* †Mylohyus
** †Mylohyus fossilis
* Myotis
** †Myotis lucifugus
** †Myotis velifer
* Mytilus
* Myzinum – or unidentified comparable form
* Partial fossilized mandible of the Miocene-Pliocene horse Nannippus †Nannippus
* †Nanotragulus
* Narona
* Nassarius
* Nasua
* Natica
* Naticarius
* Natrix
** †Natrix erythrogaster
* Nectandra
* †Neochoerus – type locality for genus
** †Neochoerus pinckneyi
* Neofiber
* Life restoration of a herd of Neohipparion. Robert Bruce Horsfall (1913). †Neohipparion
* Neotamias
** †Neotamias cinereicollis
* Neotoma
** †Neotoma albigula
** †Neotoma floridana
** †Neotoma mexicana
** †Neotoma micropus
* Neptunea – report made of unidentified related form or using admittedly obsolete nomenclature
* Nerodia
** †Nerodia fasciata
* Neverita
* †Nexuotapirus
* †Nimravides
* Niptus
* Norrisia
* †Notharctus
** †Notharctus tenebrosus
* †Nothokemas
* Life restoration of the Pleistocene ground sloth Nothrotheriops †Nothrotheriops
* †Nothrotherium
* Notiosorex
** †Notiosorex crawfordi
* †Notiotitanops
* Notophthalmus
* Nucula
* Nysius – tentative report
* Oculina
* Odocoileus
** †Odocoileus virginianus
* A living Odontaspis sand shark Odontaspis
* Odostomia
* Olivella
* Ondatra
** †Ondatra zibethicus
* Onychomys
** †Onychomys leucogaster
** †Onychomys torridus
* Opalia
* Opheodrys
** †Opheodrys aestivus
* Ophisaurus
* †Oreodaphne
* Oryzomys
** †Oryzomys palustris
* Life restoration of the Miocene pronghorn Osbornoceros †Osbornoceros – tentative report
* Ostrea
* Ovis
** †Ovis canadensis
* †Oxydactylus
* †Pachecoa
* †Palaeolama
* †Palaeophis
* Panopea
* Panthera
** †Panthera leo
** †Panthera onca
* †Paraenhydrocyon
* †Parahippus
** †Parahippus leonensis – type locality for species
* †Paralbula
* Fossilized skeleton of the Pliocene-Pleistocene ground sloth Paramylodon †Paramylodon
** †Paramylodon harlani
* †Paramys
* †Paratoceras
* †Paratomarctus
* †Parectypodus
** †Parectypodus sloani
* †Paronychomys – tentative report
* †Parvitragulus
* †Pediomeryx
* Fossilized skull of the Eocene-Oligocene lizard Peltosaurus †Peltosaurus – tentative report
* †Peraceras
* †Peratherium
* Perognathus
** †Perognathus flavus
* Peromyscus
** †Peromyscus boylii
** †Peromyscus difficilis
** †Peromyscus eremicus
** †Peromyscus gossypinus
** †Peromyscus leucopus
** †Peromyscus maniculatus
** †Peromyscus pectoralis
* Phaedon – or unidentified comparable form
* Phalium
* †Phenacodus
* Philine
* Illustration of a fossilized skull in multiple views of the Oligocene-Miocene bone-crushing dog Phlaocyon †Phlaocyon
** †Phlaocyon annectens
** †Phlaocyon minor
* Pholadomya
* Pholas
* Phos
* Phrynosoma
** †Phrynosoma cornutum
* Phyllodus
* Physa
* Pinna – tentative report
* Pisidium
** †Pisidium nitidum
* Pitar
* Pituophis
** †Pituophis melanoleucus
* Planorbis
* Restoration of a herd of alarmed Miocene-Pleistocene peccaries of the genus Platygonus. Charles R. Knight (1922). †Platygonus
** †Platygonus compressus
* †Pleiolama
* †Plesiocolopirus
* †Plesiogulo
* Pleurocera
* Pleurofusia
* Pleuromeris
* Pleuroploca
* †Pleurostoma
* Pleurotomella
* Plicatula
* Fossilized skull of the Miocene horse Pliohippus †Pliohippus
* †Pliometanastes
* †Poabromylus
* Podomys
* †Poebrotherium
* Polinices
* Polydora
* Polygyra
* Polyschides
* Porites
* †Potamides
* †Priscocamelus
* †Pristichampsus
* Pristis
* †Procamelus
** †Procamelus leptognathus
** †Procamelus occidentalis
* †Procastoroides
* †Procynodictis
* Procyon
** †Procyon lotor
* †Prohesperocyon
** †Prohesperocyon wilsoni
* Propeamussium
* †Prosimnia
* †Prosynthetoceras
* †Protitanotherium
* †Protoceras – tentative report
* †Protohippus
* †Protolabis
* †Protylopus – tentative report
* Pseudacris
** †Pseudacris ocularis
** †Pseudacris streckeri
* Restoration of the Miocene cat Pseudaelurus †Pseudaelurus – tentative report
* †Pseudhipparion
* Pseudochama
* Pseudoliva
* †Pseudoprotoceras
* †Psittacotherium
* Pteria
* Pteris
* Pterothrissus
* Pterynotus
* Illustration of a fossilized skull of the Paleocene multituberculate mammal Ptilodus †Ptilodus
** †Ptilodus mediaevus
* Ptinus
* Puma
** †Puma concolor
* Pupilla
** †Pupilla blandi
* Pupoides
* Pycnodonte
* †Pylodictis
** †Pylodictis olivaris
* Pyramidella
* †Quadrula
* Quinqueloculina
* †Raja
** †Raja texana – type locality for species
* †Rana
** A living Rana catesbeiana (sometimes Lithobates catesbeianus), or American bullfrog †Rana catesbiana – lapsus calami of Rana catesbeiana
** †Rana pipiens
* Ranularia
* Raphitoma
* Reithrodontomys
** †Reithrodontomys fulvescens
** †Reithrodontomys megalotis
** †Reithrodontomys montanus
* †Retinella
* Retusa
* Rhinobatos
* Rhinocheilus
** †Rhinocheilus lecontei
* Rhinoptera
* Restoration of the Miocene-Pliocene elephant relative Rhynchotherium †Rhynchotherium – tentative report
* Rimella
* Ringicula
* †Rooneyia – type locality for genus
** †Rooneyia viejaensis – type locality for species
* †Rotalia
* †Rotularia
* Salvadora
* †Sapindus
* Sassia
* Scalopus
** †Scalopus aquaticus
* Scaphander
* Scaphella
* A living Scaphiopus, or North American spadefoot toad Scaphiopus
* †Scaphites
* Sceloporus
** †Sceloporus olivaceus
** †Sceloporus undulatus
* Sciurus
** †Sciurus carolinensis
** †Sciurus niger
* †Selaginella
* Selenophorus – or unidentified comparable form
* Semele
* Serpulorbis
* Sigatica
* Sigmodon
** A living Sigmodon, or cotton rat †Sigmodon hispidus
* Siliqua
* Simnia
* †Sinopa
* Sinum
* Siphonalia
* Siren
** †Siren miotexana – type locality for species
* Skena
* Skenea
* Life restoration of the Pleistocene-Holocene saber-tooth cat Smilodon †Smilodon
** †Smilodon fatalis
* †Soergelia
** †Soergelia mayfieldi
* Solariella
* Solemya
* Solen
* †Sophora
* Sorex
** †Sorex cinereus
** †Sorex palustris
** †Sorex vagrans
* Spermophilus
** †Spermophilus elegans – or unidentified comparable form
** A living Xerospermophilus spilosoma, or spotted ground squirrel †Spermophilus spilosoma
** †Spermophilus tridecemlineatus
** †Spermophilus variegatus
* Sphaerium
* Spilogale
** †Spilogale putorius
* Spirorbis
* Spirotropis
* Spisula
* Stagnicola
** †Stagnicola reflexa
* Mounted fossilized skeleton of the Pliocene-Pleistocene elephant relative Stegomastodon †Stegomastodon
** †Stegomastodon mirificus
* †Steneofiber
* †Stenomylus
* †Stenotrema
* Sternotherus
* Sthenictis
* †Stockoceros – or unidentified comparable form
* Storeria
** †Storeria dekayi
* †Striatolamia
* Strobilops
* †Stygimys
* Life restoration of the Eocene taeniodont mammal Stylinodon mirus †Stylinodon
* Succinea
* Sylvilagus
** †Sylvilagus audubonii
** †Sylvilagus floridanus
* Synaptomys
** †Synaptomys cooperi
* †Synthetoceras
** †Synthetoceras tricornatus – type locality for species
* Syrphus – or unidentified comparable form
* Tantilla
* Tanytarsus – tentative report
* Tapirus
** †Tapirus veroensis
* Taxidea
** †Taxidea taxus
* Teinostoma
* Restoration of the Miocene-Pliocene rhinoceros Teleoceras †Teleoceras
** †Teleoceras major
* Tellina
* Tenagodus
* †Tephrocyon
* Terebellum
* Terebra
* Teredo
* Terminalia
* Terrapene
** A living Terrapene carolina, or common box turtle †Terrapene carolina
** †Terrapene ornata
* Testudo
* †Tetrameryx
* Thamnophis
** †Thamnophis proximus
** †Thamnophis saurita
** †Thamnophis sirtalis
* Theodoxus
* †Thinobadistes
* Thomomys
** †Thomomys bottae
** †Thomomys talpoides – or unidentified comparable form
* †Ticholeptus
* Life restoration of the Paleocene pantodont mammal Titanoides †Titanoides
** †Titanoides gidleyi – or unidentified comparable form
* †Tomarctus
** †Tomarctus brevirostris
* †Toromeryx
* †Trigonias – tentative report
* Trigonostoma
* †Trinacria
* †Tripia
* Trochita
* Tropidoclonion
** †Tropidoclonion lineatum
* †Truncilla
** †Truncilla truncata
* †Trygon
* †Tuba
* Tucetona
* Turbonilla
* Turricula
* Turris
* Turritella
* Tympanuchus
* Typhina
* Tyto
** †Tyto alba
* Life restoration of the Eocene mammal Uintatherium †Uintatherium – or unidentified comparable form
** †Uintatherium anceps
* Umbraculum
* Unio
* Urocyon
** †Urocyon cinereoargenteus – or unidentified comparable form
* Ursus
** †Ursus americanus
* †Ustatochoerus
* Vallonia
** †Vallonia gracilicosta
** †Vallonia parvula
* Venericardia
* Verticordia
* Vertigo
** †Vertigo ovata
* †Viridomys
* †Volvariella
* Vulpes
** †Vulpes velox
** †Vulpes vulpes
* Fossilized skull of the Pliocene-Pleistocene wolf Xenocyon †Xenocyon
* Xenophora
* Yoldia
* †Yumaceras
* Zonitoides
** †Zonitoides arboreus