List of the Mesozoic life of Texas
This list of the Mesozoic life of Texas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Texas and are between 252.17 and 66 million years of age.
A
Fossilized shell of the Early-Late Cretaceous ammonoid cephalopod Acanthoceras - †Acanthoceras adkinsi
- †Acanthoceras amphibolum
- †Acanthoceras barcusi
- †Acanthoceras eulessanum
- †Acanthoceras johnsonanum
- †Acanthoceras tarrantense
- †Acanthoceras wintoni
- †Acanthoceras worthense
- †
- Acesta
- Acila
- Acirsa
- †Acirsa flexicostata – tentative report
- Acmaea
- †Acompsoceras
Life restoration of the Early Cretaceous theropod dinosaur Acrocanthosaurus - †Acrocanthosaurus atokensis
- †
- †Acrosmilia
- Acteon
- †Acteon nitidus – tentative report
- †Acteon throckmortoni
- †Acteonella
- †Acteonella delgadoi
- †Acteonella pecosensis
- †Acteonella sublaevis – or unidentified comparable form
- †Actinacis
- †Actinacis valverdensis – type locality for species
- †Actinastrea
- †Actinostreon
- †Acutostrea
Life restoration of the Late Triassic synapsid (mammal precursor) Adelobasileus - †Adelobasileus cromptoni– type locality for species
- †
- †Adinodon
- †Adinodon pattersoni – type locality for species
- †Adkinsella – type locality for genus
- †Adkinsella edwardsensis – type locality for species
- †Adkinsia
- †Adkinsia bosquensis – type locality for species
- †Adkinsia knikerae – type locality for species
- †Adocus
- †Aenona
- †Aetodactylus – type locality for genus
- †Aetodactylus halli– type locality for species
- †
- †Agerostrea
- †Aguileria
- †Agujaceratops
- †Agujaceratops mariscalensis– type locality for species
- †
- †Akera
Alamosaurus - †Alamosaurus sanjuanensis
- †
- †Albanerpeton
- †Albanerpeton arthridion – type locality for species
- †Albanerpeton gracilis
- †Albanerpeton nexuosus
- †Aliofusus
- †Aliomactra
- †Alkaidia – type locality for genus
- †Alkaidia sumralli – type locality for species
- †Allocrioceras
- Alnus
Restorative model of the Late Cretaceous mammal Alphadon - †Alphadon halleyi– or unidentified comparable form
- †Alphadon perexiguus – type locality for species
- †
- †Altairia – type locality for genus
- †Amaurellina
- †Ambigostrea
- †Ambrosea
- Ammobaculites
Fossilized shell of the Jurassic-Miocene sea snail Ampullina - Amuletum
- Amusium
- †Amusium danei – tentative report
- †Anacolosidites
- †Anaklinoceras
- †Anatimya
- †Anchura
- †Ancilla
- †Angistorhinus
- †Angistorhinus alticephalus– type locality for species
- †Angistorhinus grandis
- †
Reconstructive illustration of a fossilized skull of the Late Cretaceous duck-billed dinosaur Angulomastacator - †Angulomastacator daviesi– type locality for species
- †
- †Anisoceras
- †Anisomyon
- †Anisomyon borealis – tentative report
- †Anisomyon haydeni
- †Anomalina
- †Anomalofusus
- Anomia
- †Anomoeodus
- †Anomotodon
- †Anomotodon toddi – type locality for species
- †Antillocaprina
- †Apachesaurus
- †Apachesaurus gregorii
- †
- †Aphrodina
- Aplousina
- †Apsgnathus – type locality for genus
- †Apsgnathus triptodon – type locality for species
- †Aquilarhinus – type locality for genus[1]
- †Aquilarhinus palimentus – type locality for species[1]
- †
- Arca
- Architectonica
- Arcopsis
- †Arctostrea
- †Areopsammia – type locality for genus
- †Areopsammia bakerae – type locality for species
Restoration of the Late Triassic lungfish Arganodus with an anachronistic human to scale - †Arganodus dorotheae– type locality for species
- †
- Arrhoges
- †Asciocythere
- †Aspidoceras
- †Astacodes
- †Astandes
- Astarte
- †Astartemya
Electron micrograph and gross view of an Astrangia stony coral - †Astrangia cretacea
- †Astrangia lamarensis – type locality for species
- Astreopora – tentative report
- †Astreopora leightoni – type locality for species
- †Astrocoenia
- †Astrocoenia budaensis – type locality for species
- †Astrocoenia nidiformis
- †Astrocoenia scyphoidea – type locality for species
- †Astroconodon – type locality for genus
- †Astroconodon denisoni– type locality for species
- †
- †Astrocratis – type locality for genus
- †Astrocratis acutispina – type locality for species
Life restoration of the Early Cretaceous long-necked dinosaur Astrodon - †Astrodon johnstoni
- †
- †Astrophocaudia – type locality for genus
- †Astrophocaudia slaughteri– type locality for species
- †
- †Atreta
- †Aulastraeopora – type locality for genus
- †Aulastraeopora harrisi – type locality for species
- †Axonoceras
- †Axosmilia
- †Axosmilia craginiana – type locality for species
- †Axosmilia whitneyi – type locality for species
B
Fossilized shell of the Late Cretaceous ammonoid cephalopod Baculites - †Baculites aquilaensis- or unidentified loosely related form
- †Baculites claviformis
- †Baculites haresi– or unidentified comparable form
- †Baculites ovatus
- †Baculites scotti
- †Baculites taylorensis
- †Baculites tippahensis
- †Baculites undatus
- †
- †Baena – report made of unidentified related form or using admittedly obsolete nomenclature
- †Banis
- Barbatia – tentative report
- †Barroisiceras
Mounted fossilized skeleton of the Cretaceous turtle Basilemys - †Bathycyathus – tentative report
- †Bathycyathus lloydi – type locality for species
- †Bathytormus
- †Belemnitella
- †Belemnitella americana
- †
- †Bellifusus
- †Belliscala
- †Belodon
- †Belodon superciliosus – type locality for species
Fossilized skeleton of the Late Cretaceous bony fish Belonostomus - †Beretra
Life restoration of the Early Cretaceous crocodilian relative Bernissartia - †Betelgeusia – type locality for genus
- †Betelgeusia reidi– type locality for species
- †
- †Borissiakoceras
- †Bostrychoceras
- Botula
- †Botula carolinensis
- †Botula conchafodentis
- †Botula plumosa
- †
Life restoration of the Late Cretaceous plesiosaur Brachauchenius hunting a hesperornithiform bird - †Brachauchenius lucasi
- †
- Brachidontes
- Brachiodontes
- †Brachychampsa
- †Brachycythere – tentative report
- †Brachyrhizodus – type locality for genus
- †Brachyrhizodus wichitaensis – type locality for species
- †Brachysuchus – type locality for genus
- †Brachysuchus megalodon– type locality for species
- †
Life restoration of the Late Cretaceous horned dinosaur Bravoceratops - †Bravoceratops polyphemus– type locality for species
- †
- †Breviarca
- †Brontopodus – type locality for genus
- †Brontopodus birdi – type locality for species
- †Buccinopsis
- †Budaia – type locality for genus
- †Budaia travisensis – type locality for species
- †Budaiceras
- †Burckhardtites
- Busycon – tentative report
C
- Cadulus
- Caestocorbula
- †Caestocorbula crassaplica
- †Caestocorbula crassiplica
- †Caestocorbula suffalciata
- †Caestocorbula terramaria
- †Caestocorbula torta
- †Caestocorbula williardi
- †
- Callianassa
- †Calliomphalus
- †Calliomphalus americanus
- †Calliomphalus bellulus
- †Calliomphalus microcancelli
- †
- Callistina
- †Callodus – type locality for genus
- †Callodus coronatus – type locality for species
- Callucina
- †Calyptosuchus – type locality for genus
- †Calyptosuchus wellesi– type locality for species
- †
Three modern shells of Calyptraea, or Chinese hat snails - †Camptonectes
- Cancellaria
- †Cancellaria matroni – tentative report
- †Cantabrigites
- †Cantabrigites spinosum
- †Cantabrigites subsimplex – or unidentified related form
- Cantharus– tentative report
- †Cantioscyllium
- †Cantioscyllium meyeri – type locality for species
- †Capellia – type locality for genus
- †Capellia mauricei – type locality for species
Fossilized shell of the Cretaceous marine bivalve Caprina - †Caprinuloidea
- Capulus
- †Capulus cuthandensis
- †Capulus erectus
- †Capulus microstriatus – tentative report
- †Capulus spangleri
A living Carcharias sand tiger shark - †Carcharias heathi – type locality for species
- †Carcharias holmdelensis
- †Carcharias samhammeri – or unidentified comparable form
- †Cardiaster
- Cardium
- †Caririchnium
- †Caririchnium protohadrosaurichnos – type locality for species
- Carota
- †Carycorbula
- Caryocorbula
A living Caryophyllia solitary coral - †Caryophyllia comanchei – type locality for species
- †Caryophyllia dentonensis – type locality for species
- †Caryophyllia konincki – type locality for species
- †Caseosaurus – type locality for genus
- †Caseosaurus crosbyensis– type locality for species
- †
- †Casierius
- †Catactegenys – type locality for genus
- †Catactegenys solaster – type locality for species
- †Catastomocystis
Fossilized skeleton of the Permian-Early Cretaceous bony fish Caturus - †Caveola
- †Caveola acuta – tentative report
- †Caveola bellsana
- †Caveola producta
- †Cedarosaurus
- †Cedarosaurus weiskopfae
- †
- †Cenomanocarcinus
- Ceratodus
- †Ceratodus americanus – or unidentified comparable form
- Ceratotrochus – tentative report
- †Ceriopora
- Cerithiella
- †Cerithiella nodoliratum– or unidentified related form
- †Cerithiella semirugatum
- †
- Cerithium
- †Chamops
- †Champsosaurus
- †Chartecytis
- †Cheloniceras
Restoration of the Late Triassic theropod dinosaur Chindesaurus - †Chindesaurus bryansmalli
- †
- †Chinlea
- †Chirostenotes
- †Chondrodonta
- †Chondrodonta glabra
- †Chondrodonta munsoni
- †Chondrodonta youngi – type locality for species
- †Chupacabrachelys – type locality for genus
- †Chupacabrachelys complexus – type locality for species
- Cidaris
- †Cimexomys
- †Cimoliasaurus
Life restoration of the Late Cretaceous pterosaur Cimoliopterus (left) stealing fish from another pterosaur - †Cimoliopterus dunni– type locality for species
- †
- †Cimolodon
- †Cimolodon electus– or unidentified comparable form
- †
- †Cimolomys
- †Cimolomys clarki
- †
- †Cinulia
- †Cinulia tarrantensis – or unidentified related form
- †Cionichthys
- †Cionichthys greeni – type locality for species
- †Citharina
- †Cladoceramus
- †Cladophyllia
- †Clavipholas
- †Clevosaurus – or unidentified comparable form
Life restoration of the Late Cretaceous mosasaurid Clidastes - †Clidastes liodontus
- †
- Cliona
- †Clisocolus
- †Coahomasuchus – type locality for genus
- †Coahomasuchus kahleorum– type locality for species
- †
- †Coahuilites – tentative report
- †Coalcomana
- †Codiopsis
- †Codiopsis stephensoni – type locality for species
- †Coelodus
- †Coelodus decaturensis – type locality for species
- †Coelodus fabadens – type locality for species
Life restoration of the Late Triassic-Early Jurassic theropod dinosaur Coelophysis with an anachronistic human to scale - †Coelosmilia
- †Coilopoceras
- †Coilopoceras springeri
- †
- †Collignoniceras
- †Collignoniceras woollgari
- †
- †Colognathus – type locality for genus
- †Colognathus obscurus – type locality for species
- †Colombiceras
- †Columbiceras
- †Comptoniaster
- †Confusiscala – tentative report
- †Coniasaurus
- †Connectastrea – tentative report
- †Connectastrea infundibuliformis – type locality for species
- Conopeum
- †Continuoolithus
- †Conulus
- †Conulus stephensoni – type locality for species
- †Convolosaurus – type locality for genus[2]
- †Convolosaurus marri – type locality for species[2]
- †
A living Corbicula basket clam - Corbula
- †Corbula amniculana
- †Corbula dentonensis
- †Corbula inflata
- †Corbula linteroidea
- †Corbula ponsana
- †Corbula pulvinata
- †Corbula rockensis
- †Corbula senecta
- †Corbula starana
- †Corbula subradiata
- †Corbula subradiata texana
- †Corbula torta – or unidentified related form
- †Corbula williardi – tentative report
- †Corbula woodi
- †Coskinolinoides
- †Costellacesta
- †Coupatezia
- †Coupatezia turneri – type locality for species
- †Craginia
- Crassatella
Fossilized shell of the Cretaceous-modern oyster Crassostrea - †Crateraster
- †Crenella
- †Crenella elegantula
- †Crenella serica
- †Crenella subcircularis
- †
- †Creonella
- †Cretacoranina
- Cretolamna
- †Cretolamna appendiculata
- †Cretolamna maroccana
- †
- †Cretorectolobus
- †Cretorectolobus olsoni– or unidentified comparable form
- †
- †Crosbysaurus – type locality for genus
- †Crosbysaurus harrisae– type locality for species
- †
- Ctena
- Cucullaea
- †Cucullaea blanpiedi
- †Cucullaea capax
- †Cucullaea deatvillensis
- †Cucullaea kingsensis
- †Cucullaea murrayi
- †Cucullaea powersi
- †Cuna
- †Curtocaprina – type locality for genus
- †Curtocaprina clabaughikinsorum – type locality for species
- Cuspidaria
- †Cuspidaria alaeformis
- †Cuspidaria ampulla
- †Cuspidaria grandis
- †Cuspidaria grovensis
- †Cyathomorpha – tentative report
- †Cyathomorpha damoni – type locality for species
- †Cyathophora
- †Cyathophora haysensis – type locality for species
- †Cyathophora olssoni – type locality for species
- †Cyclorisma
- †Cyclothyris
- Cylichna
- †Cylichna incisa
- †Cylichna secalina
- †
Fossilized shell of the Late Jurassic-Oligocene nautiloid cephalopod Cymatoceras - †Cymatoceras hilli – or unidentified comparable form
- †Cymatoceras texanum
- †Cymbophora
- †Cymella
- †Cypridae
- †Cypridae wyomingensis – or unidentified related form
- †Cyprimeria
- Cythere
- †Cythereis
- Cytherella
- Cytherelloidea
- Cytheropteron
- Cyzicus – tentative report
.JPG)
D
Life restoration of the Late Cretaceous primitive mosasaur Dallasaurus - †Dallasaurus turneri– type locality for species
- †
- †Darwinula
- Dasmosmilia
- †Dasmosmilia kochii– type locality for species
- †
- Dasyatis
- †Dasyatis commercensis – type locality for species
- †Dathmila
- †Dawsonius
Mounted fossilized skeleton of the Late Cretaceous Alligator relative Deinosuchus - †Deinosuchus riograndensis
- †Deinosuchus rugosus– type locality for species
- †
- †Deltaichthys
- †Dendrosmilia – tentative report
- †Denebia – type locality for genus
- Dentalina
- Dentalium
- †Dentalium inornatum
- †Dentalium leve
- †Dentalium minor
- †Dentalium navarroi
- †Dentalium pauperculum
- †Dentalium sublineatum
- †Dentalium vaughani
- †Dentonia
Restoration of the Late Triassic aetosaur Desmatosuchus with an anachronistic human to scale - †Desmatosuchus haplocerus
- †Desmatosuchus smalli– type locality for species
- †Desmatosuchus spurensis– type locality for species
- †
- †Desmoceras
- †Deussenia
- †Dhondtichlamys
- †Dichastopollenites
- †Dictyoconus
- †Dimorpharaea
- †Dimorpharaea manchacaensis – type locality for species
- †Dimorphastrea
- †Dimorphastrea stantoni – type locality for species
- †Dinogymnium
- Diodora – tentative report
Fossilized skeleton of the Late Triassic tuatara relative Diphydontosaurus - †Diploastrea
- †Diploastrea harrisi – type locality for species
- †Diploastrea hilli – type locality for species
- †Diploastrea vaughani – type locality for species
- †Diplolonchidion – type locality for genus
- †Diplolonchidion murryi – type locality for species
- †Diplomoceras
- †Discofascigera
- Discorbis
- †Discoscaphites
- †Discoscaphites conradi
- †Discoscaphites erucoideus
- †
- †Distefanella – or unidentified comparable form
- !-- Doswellia: Automatic taxobox --> †Doswellia
- †Douvilleiceras
- †Douvilleiceras grandense
- †Douvilleiceras mammillatum
- †Douvilleiceras offarcinatum – or unidentified comparable form
- †Douvilleiceras orbignyi – or unidentified comparable form
- †Douvilleiceras quitmanense
- †Douvilleiceras rex
- †Douvilleiceras spathi
- †Douvillelia – tentative report
Shell of a Dreissena freshwater mussel - †Drepanocheilus
- †Drepanochilus
- †Drilluta
- †Drilluta brevispira
- †Drilluta crassicostata
- †Drilluta crassicostata longa
- †Drilluta distans
- †Drilluta major – or unidentified comparable form
- †Drilluta paucicostata
Restoration of the Late Triassic dinosaur relative Dromomeron - †Dromomeron gregorii– type locality for species
- †
- †Dryptosaurus
- †Dufrenoyia
- †Dufrenoyia justinae
- †Dufrenoyia rebeccae
- †
- †Durania
E
- †Echinocorys
- †Ecoacteon
- †Ecphora
Fossilized partial skeleton of the Late Cretaceous mosasaur Ectenosaurus - †Edmontonia – or unidentified comparable form
- †Elea – tentative report
- †Elephantaria
- †Elephantaria simondsi – type locality for species
- †Ellipsoscapha
Restoration of the Early Cretaceous-Eocene bony fish Enchodus, or the "saber-toothed herring" - †Endoplocytia
- †Endoptygma
- †Endostoma
- †Endostoma mexicana – or unidentified comparable form
- †Engonoceras
- †Engonoceras complicatum
- †Engonoceras elegans
- †Engonoceras gibbosum
- †Engonoceras hilli
- †Engonoceras retardum
- †Engonoceras serpentinum
- †Engonoceras stolleyi
- †Engonoceras subjectum – or unidentified related form
- †Enoploclytia
- †Entolium
- †Eoacteon
- †Eodouvilleiceras
- †Eomunidopsis
- Eonavicula
- †Eoradiolites
- †Eosiderastrea
- †Eosiderastrea cuyleri – type locality for species
- †Eoursivivas
- †Epiaster
- †Epiphaxum
- †Epiphaxum labyrinthicum – type locality for species
- †Episcoposaurus– type locality for genus
- †Episcoposaurus haplocerus– type locality for species
- †
- †Epistomina
- †Epistreptophyllum
- †Epistreptophyllum boesei – type locality for species
- †Epistreptophyllum budaensis – type locality for species
- †Epistreptophyllum shumardi – type locality for species
- †Epitonium
- †Epitonium sillimani
- †
- †Etea
- †Ethmocardium
- †Eubaculites
Fossilized shell of the Late Cretaceous ammonoid cephalopod Eubostrychoceras - †Eucalycoceras
- †Eucalycoceras templetonense – type locality for species
- †Eufistulana
- †Eufistulina
- †Eugyra
- †Eugyra cuyleri – type locality for species
- †Euhoplites – tentative report
- †Eulima
- †Euomphaloceras
- †Eupachydiscus
Shell of a Euspira moon sea snail - Euthriofusus – or unidentified related form
- †Eutrephoceras
- †Eutrephoceras dekayi
- †Eutrephoceras perlatus
- †Eutrephoceras planoventer
- †
- †Ewingia – type locality for genus
- †Ewingia problematica– type locality for species
- †
Fossilized shell of the Jurassic-Cretaceous foam oyster Exogyra - †Exogyra americana
- †Exogyra arientina
- †Exogyra cancellata
- †Exogyra columbella
- †Exogyra columbella levis
- †Exogyra costata
- †Exogyra costata spinifera
- †Exogyra erraticostata
- †Exogyra potosina
- †Exogyra spinifera
- †Exogyra texana
F
Fossilized shell of the Late Cretaceous ammonoid cephalopod Fagesia - †Faraudiella
- †Faujasia
- †Faujasia chelonium – type locality for species
- †Favia
- †Feldmannia
- †Ficheuria
- †Ficheuria pernoni – or unidentified related form
- †Fictoacteon
- Filisparsa
- †Flaventia
- †Flemingostrea
- †Flexomornis – type locality for genus
- †Flexomornis howei– type locality for species
- †
- †Flickia
- †Flickia simplex – type locality for species
- †Fomalhautia – type locality for genus
- †Fomalhautia hortensae – type locality for species
- †Forbesiceras
- †Forresteria
- †Forresteria castellense – type locality for species
- †Forresteria forresteri – type locality for species
- †Forresteria sevierense – type locality for species
- †Frenelopsis
- †Fulgerca
- †Fulgerca attenuata – or unidentified related form
- †Fulgerca venusta
- †Fulpia
- †Fungella
- †Fuscinapedis – type locality for genus
- †Fuscinapedis woodbinensis – type locality for species
- †Fusimilis
A living Fusinus sea snail - †Fusinus cornelianus
- †Fusinus macnairyensis – or unidentified related form
G
- Galeorhinus
- †Galeorhinus girardoti – or unidentified related form
- †Gallolestes
- †Gallolestes agujaensis – type locality for species
- †Garramites
- Gastrochaena
- Gaudryina
- Gegania
- †Geltena
- †Gerdalia
Fossilized shell of the Carboniferous-Eocene bivalve Gervillia - †Gervillia bryani
- †Gervillia wellsi – tentative report
- †Gervilliopsis
- Ginglymostoma
- †Glenrosa
- †Globator
- †Globator vaughani – type locality for species
Illustration of a reconstructed skull of the Late Cretaceous mosasaur Globidens - †Globidens dakotensis
- †
- Globigerina
- †Globigerina cretacea
- †Globigerina washitaensis
- †
- Glossus
- Glycymeris
- †Glycymeris rotundata
- †Glycymeris rotundata kaufmanensis
- †
Fossilized skull and shell of the Late Jurassic-Early Cretaceous turtle Glyptops - †Glyptoxoceras
- †Gobiates
- †Goniochasma
- †Goniocylichna
- †Goniophorus
- †Graciliala
- †Graciliala calcaris
- †Graciliala cooki
- †Graciliala johnsoni – tentative report
- †Grammatodon
- †Granocardium
- †Graphidula
- †Graphidula gabrielensis – tentative report
- †Graphidula hoggi
- †Graphidula lynnensis
- †Graphidula multicostata
- †Graphidula terebriformis
- †Graptocarcinus
- †Graysonia
- †Graysonites
- †Gryphaea
- †Gryphaea aucella – or unidentified related form
- †Gryphaea gibberosa
- †Gryphaea marcoui
- †Gryphaea pitcheri
- †Gryphaea washitaensis
- †Gryphaeostrea
Restorative portrait of the Late Cretaceous duck-billed dinosaur Gryposaurus. - †Gryposaurus alsatei
- †
- †Guembelina
- †Gumbelina
- †Gymnentome
- †Gypsichnites
- Gyrodes
- †Gyronchus
- †Gyrostrea
H
Shell of Haminoea bubble shell sea snail - †Hamites
- †Hamrabatis
- †Hamrabatis weltoni – type locality for species
- †Hamulus
- †Haplostiche
- †Haplovoluta
- †Harduinia
- †Helicoceras
- †Helicoceras navarroense
- †
- †Helopanoplia
- Hemiaster
- †Hemiaster benhurensis
- †Hemiaster bexari
- †Hemiaster jacksoni
- †Hemiaster sabinal – type locality for species
- †Hemiaster texanus
- †Hemiaster wetherbyi
- †Hemicalypterus – tentative report
- Hemicerithium
- †Hercorhynchus
- †Hercorhyncus
- †Heterocoenia – tentative report
- †Heterocoenia hilli – type locality for species
- †Heterocoenia washitaensis – type locality for species
- Heterodontus
- †Heterodontus granti – type locality for species
- † Heteromorpha
Illustration of a living Hexanchus, or sixgill shark - †Hillites
- †Hindeastraea
- †Holaster
- †Holoclemensia – type locality for genus
- †Holoclemensia texana – type locality for species
Fossil of the Late Cretaceous lobster Hoploparia bearpawensis - †Homoeosolen
- †Homomya
- †Homomya thrusheri – tentative report
- †Hoplochelys
- †Hoploscaphites
- †Huetamia
Life restoration of two of the Permian-Late Cretaceous cartilaginous fish Hybodus - †Hybodus brevicostatus – or unidentified comparable form
- †Hybodus butleri – type locality for species
- †Hydnophora – tentative report
- †Hydnophora styriaca – type locality for species
- †Hydrotribulus
- †Hylaeobatis – or unidentified comparable form
- †Hypacanthoplites
- †Hypolophus
- †Hypolophus mcnultyi – type locality for species
- †Hypophylloceras
- †Hypophylloceras tanit – or unidentified comparable form
- †Hypoturrilites
.gif)
I
- †Ichthyodectes
Restoration of the Late Cretaceous toothed bird Ichthyornis - †Ichthyornis dispar
- †
- †Idoceras
- †Iguanodon – or unidentified comparable form
Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size - †Inoceramus anomalus– or unidentified comparable form
- †Inoceramus arnoldi
- †Inoceramus arvanus
- †Inoceramus balticus
- †Inoceramus biconstrictus
- †Inoceramus cordiformis– or unidentified comparable form
- †Inoceramus cummingsi
- †Inoceramus deformis
- †Inoceramus dimidius
- †Inoceramus eulessanus
- †Inoceramus fragilis
- †Inoceramus prefragilis
- †Inoceramus vanuxemi– tentative report
- †
- †Irenesauripus
- †Isastrea
- †Isastrea whitneyi – type locality for species
- †Ischyrhiza
- †Ischyrhiza avonicola
- †Ischyrhiza mira
- †Ischyrhiza monasterica – type locality for species
- †
- †Isomicraster
- †Isomicraster danei
- †Isomicraster rossi – type locality for species
J
Fossilized shell of the Late Cretaceous ammonoid cephalopod Jeletzkytes - †Jeletzkytes brevis
- †
- Juliacorbula
K
- †Kamerunoceras
- †Kamerunoceras calvertense
- †Kamerunoceras eschii – or unidentified comparable form
- †Kasanskyella
- †Kasanskyella cuchillensis – tentative report
- †Kasanskyella fosteri
- †Kasanskyella spathi
- †Kasanskyella whitneyi – tentative report
- †Kazanskyella
- †Kermackia – type locality for genus
- †Kermackia texana – type locality for species
- †Kimbleia
- †Koskinonodon– type locality for genus
- †Koskinonodon perfectus – type locality for species
Life restoration of the Late Cretaceous duck-billed dinosaur Kritosaurus
L
- †Laevigyra
- †Lamellaerhynchia
- †Lamellaerhynchia indi – type locality for species
- †Lamellaerhynchia viae – type locality for species
A modern Lamna mackerel shark - †Lamna sulcata – or unidentified related form
- †Lanieria
- †Lanieria uvaldana – type locality for species
- †Lasalichthys
- Laternula
- †Latiala
- †Latiastrea
Shells in multiple views of Latiaxis coral sea snails - †Latiscopus – type locality for genus
- †Latiscopus disjunctus – type locality for species
- †Laxispira
- †Legumen
- Lenticulina
- †Lepidotes
- Lepisosteus
- †Leptarbacia
- Leptomaria
Leptorhynchos
– type locality for genus
- †Leptorhynchos gaddisi – type locality for species
- †Leptosolen
- †Leptostyrax
Fossilized skull of the Late Triassic phytosaur Leptosuchus - †Leptosuchus crosbiensis– type locality for species
- †Leptosuchus imperfecta– type locality for species
- †Leptosuchus studeri– type locality for species
- †
- †Levicerithium
- †Lewesiceras
- †Lewyites
- †Leyvachelys
- †Leyvachelys cipadi
- †
- †Libognathus – type locality for genus
- †Libognathus sheddi – type locality for species
Life restoration of the Late Cretaceous plesiosaur Libonectes with an anachronistic scuba diver to scale - †Libonectes morgani– type locality for species
- †
- Lima
- Limatula
- Limea
- Limopsis
- †Linearia
- †Linearis
- Lingula
- †Linter
- †Linthia
A modern Linuparus spiny lobster - †Lioestheria – tentative report
- †Liopeplum
- †Liopistha
- †Liothyris
- †Liothyris carolinensis – or unidentified comparable form
- †Liothyris navarroana
- Liquidambar – tentative report
- †Lirosoma
- †Lispodesthes
- †Lissodus
- †Lissodus babulski – or unidentified related form
Lithacoceras - Lithophaga
- †Lomirosa
- †Lonchidion
- †Lonchidion anitae – type locality for species
- †Lonchidion humblei – type locality for species
- †Lonchidion selachos
- †Longoconcha
Mounted fossilized skeleton of the Late Triassic aetosaur Longosuchus - †Longosuchus meadei– type locality for species
- †Longosuchus meadi
- †
- Lopha
- †Lopha falcata
- †Lopha mesenterica
- †Lopha subovata
- †
- †Loriolia
- †Lowenstamia
- †Lowenstamia subplanus – or unidentified comparable form
- †Loxostomoides
- †Lucasuchus – type locality for genus
- †Lucasuchus hunti– type locality for species
- †
- Lucina
- †Luisogalathea
- †Lupira
- †Lutema
- †Lycettia
- †Lyriochlamys – tentative report
.jpg)
M
- †Macraster
- †Macrepistius
- †Macrocerithium
- †Macromesodon
- †Magadiceramus
- †Magadiceramus complicatus
- †Magadiceramus crenelatus
- †Magadiceramus crenistriatus – or unidentified comparable form
- †Magadiceramus subquadratus
- †Magnoavipes – type locality for genus
- †Magnoavipes lowei – type locality for species
Life restoration of the Late Triassic reptile Malerisaurus - Malletia
- †Mammites
- †Mammites powelli – type locality for species
- †Mantelliceras
- †Mantelliceras cantianum
- †Mantelliceras martimpreyi – or unidentified comparable form
- †Mantelliceras saxbii
- †
- †Margaritella
Fossilized shell of the Early-Late Cretaceous ammonoid cephalopod Mariella - †Mariella bosquensis
- †Mariella brazoensis
- †Mariella camachoensis
- †Mariella cenomanensis – or unidentified comparable form
- †Mariella davisense
- †Mariella rhacioformis
- †Mariella wysogorskii
Mounted skeleton of the Late Cretaceous plesiosaur Martinectes - †Martinectes bonneri
- †
- †Mataxa
- †Mathilda
- †Meandraraea
- †Meandraraea plummeri – type locality for species
- †Meandraraea tulae – or unidentified comparable form
- †Medionapus
- Megalomphalus – or unidentified comparable form
- †Megalosauropus– tentative report
- †Megalosauropus titanopelobatidus – type locality for species
- Melanatria
- †Melicertites
- Membranipora
- Membraniporidra
- †Menabites
Fossilized skull of the Late Cretaceous multituberculate mammal Meniscoessus - †Menuites
- Mesalia
- †Mesodma
- †Mesomorpha
- †Mesomorpha excavata
- †Mesomorpha vaughani – type locality for species
- †Metengonoceras
- †Metoicoceras
- †Metoicoceras crassicostae
- †Metoicoceras geslinianum
- †Metoicoceras latoventer
- †Metoicoceras swallovi
- †Metoicoceras swallovii
- †Metoicoceras swallovii macrum
Life restoration of the Late Triassic amphibian Metoposaurus with an anachronistic human to scale - †Metoposaurus bakeri– type locality for species
- †Metoposaurus fraasi
- †Metoposaurus jonesi – type locality for species
- †Metoposaurus perfecta
- †
- †Mexicaprina
- †Micrabacia
- †Micrabacia marylandica
- †Micrabacia radiata – type locality for species
- †Micraster
- †Micraster americanus
- †Micraster uddeni – type locality for species
- †Microsolena
- †Microsolena texana – type locality for species
- †Microsulcatoceras
- †Microsulcatoceras texanum – type locality for species
- †Miocardiopsis
- Modiolus
- †Modiolus sedesclaris
- †Modiolus sedesclarus
- †Modiolus sedisclarus
- †
- Monodonta – tentative report
- †Monopleura – tentative report
- †Monroea
- Montastraea
- †Montastraea comalensis
- †Montastraea edwardsensis – type locality for species
- †Montastraea pecosensis – type locality for species
- †Montastraea roemeriana – type locality for species
- †Montastraea texana
- †Montastraea travisensis
- †Montastraea whitneyi
- †Morea
- †Moremanoceras
- †Moremanoceras elgini
- †Moremanoceras flexuosum – type locality for species
- †Morphastrea
- †Morphastrea barcenai – or unidentified comparable form
- †Mortoniceras
Life restoration of two of the Late Cretaceous Mosasaurus - †Mosasaurus maximus
- †Mosasaurus missouriensis– tentative report
- †
- †Muensterella[3]
- †Muensterella jillae – type locality for species[3]
- †Myobarbum
- †Myriophyllia – tentative report
- †Myriophyllia dumblei – type locality for species
- Myrtea
- †Mytiloides
- †Mytilus
N
- †Naomichelys
- †Napulus
- moon snail Natica
- Nebrius
- †Neithea
- †Neithea bexarensis
- †Neithea quinquecostata
- †
- †Nelltia
- †Nemocardium
- †Nemodon
- †Neobrites
- †Neocardioceras
- †Neocardioceras juddii
- †
- †Neodeshayesites
- †Neogauthiericeras
Opalized guard of the belemnoid cephalopod Neohibolites - †Neophlycticeras
- †Neophlycticeras archerae – type locality for species
- †Neophlycticeras blancheti – or unidentified comparable form
- †Neophlycticeras fascicostatum – type locality for species
- †Neophlycticeras roemeri
- †Neophlycticeras texanum
- †Neoptychites
- †Nerinea – tentative report
- Nerita
Living Neritina or nerite snails - Nodosaria
- †Nonactaeonina
- †Nonaphalagodus – type locality for genus
- †Nonaphalagodus trinitiensis – type locality for species
Restoration of several species of the Late Cretaceous ammonoid cephalopod Nostoceras - †Nostoceras approximans
- †Nostoceras colubriformis
- †Nostoceras draconsis
- †Nostoceras helicinum crassum
- †Nostoceras helicinum humile
- †Nostoceras helicinus
- †Nostoceras hyatti
- †Nostoceras splendidum
- †Nostoceras stantoni aberrans
- †Nostoceras stantoni prematurum
- †
- †Notodonax
- †Notopoides – tentative report
- †Notopoides pflugervillensis – type locality for species
- †Nucleopygus
Interior of a fossilized shell of the Early Ordovician-modern marine bivalve Nucula - †Nucula camia
- †Nucula chatfieldensis
- †Nucula chatsfieldensis
- †Nucula ciboloensis
- †Nucula cuneifrons
- †Nucula microstriata
- †Nucula nacatochana
- †Nucula percrassa
- †Nucula perequalis
- †Nucula rivulana
- †Nucula stantoni
- †Nucula waltonensis
- †
- Nuculana
- †Nudivagus – tentative report
- †Nymphalucina
- †Nyssa
O
- †Odaxosaurus
- †Odaxosaurus piger
- †
A living Odontaspis sand shark - †Ogilviastraea – tentative report
- †Ogilviastraea richardsi – type locality for species
- †Oklatheridium
- †Oklatheridium minax
- †Oklatheridium szalayi
- †
- †Oligoptycha
- †Oligoptycha americana – tentative report
- †Onchopristis
Fossilized vertebrae of the Cretaceous sawfish Onchosaurus - †Opertochasma
- †Ophiomorpha
- †Ophiopsis – tentative report
- Ophiura
- †Ophiura graysonensis
- †Ophiura texana
- †Ophiura travisana – type locality for species
- †Opis
- †Opis elevata – tentative report
Life restoration of the Late Cretaceous ostrich dinosaur Ornithomimus - †Ornopsis
- †Ostlingoceras
Shell of an Ostrea, or oyster - †Ostrea alternans
- †Ostrea bella
- †Ostrea beloiti
- †Ostrea carica
- †Ostrea carinata – or unidentified related form
- †Ostrea crenulimargo
- †Ostrea leveretti
- †Ostrea lugubris
- †Ostrea owenana
- †Ostrea panda
- †Ostrea rubradiata
- †Ostrea soleniscus
- †Ostrea subovata
- †Ostrea subradiata
- †Otischalkia – type locality for genus
- †Otischalkia elderae– type locality for species
- †
- †Ovalastrea – type locality for genus
- †Ovalastrea fredericksburgensis – type locality for species
- †Ovalastrea pecosensis – type locality for species
- †Oxyrhina
- †Oxytropidoceras
- †Oxytropidoceras acuticarinatum
- †Oxytropidoceras acutocarinatum
- †Oxytropidoceras bravoensis
- †Oxytropidoceras carbonarium
- †Oxytropidoceras diazi
- †Oxytropidoceras moorei
- †Oxytropidoceras multifidum
- †Oxytropidoceras pandalense – or unidentified comparable form
- †Oxytropidoceras powelli
- †Oxytropidoceras salasi
- †Oxytropidoceras stenzeli
- †Oxytropidoceras supani
- †Oxytropidoceras texanum
- †Oxytropidoceras uddeni
P
- †Pachycheilosuchus – type locality for genus
- †Pachycheilosuchus trinquei– type locality for species
- †
- †Pachydesmoceras
- †Pachydiscus
Restorative portrait of the Early Jurassic synapsid (mammal precursor) Pachygenelus - †Pachygenelus milleri– type locality for species
- †
- †Pachymelania
- †Pachymya
- Pagurus
- †Paladmete
Fossilized skeleton of the Early Cretaceous-Eocene bony fish Palaeobalistum - †Palaeobalistum geiseri – type locality for species
- †Palaeobalistum rectidens – type locality for species
- †Palaeoctonus
- †Palaeoctonus dumblianus – type locality for species
- †Palaeoctonus orthodon – type locality for species
- †Palaeocypraea
- †Palaeogaleus
- †Palaeogaleus navarroensis – type locality for species
- †Paleollanosaurus – type locality for genus
- †Paleollanosaurus fraseri– type locality for species
- †
- †Paleomolops
- †Paleomolops langstoni – type locality for species
- †Paleopsephaea
Life restoration of the Late Triassic phytosaur Paleorhinus - †Paleorhinus sawini– type locality for species
- †
- †Paluxysuchus – type locality for genus
- †Paluxysuchus newmani– type locality for species
- †
- †Panis
- Panopea
- †Panopea anacachoensis – type locality for species
- †Panopea subplicata
- †Pantojaloria
- †Pappotherium – type locality for genus
- †Pappotherium pattersoni – type locality for species
- †Paracimexomys
- Paracyprideis
- Paracypris
- †Parafusus – tentative report
- †Parahoplites
- †Paraisurus
- †Paramicrodon – type locality for genus
- †Paramicrodon estesi – type locality for species
- †Parandiceras
- †Parandiceras indicum – or unidentified comparable form
- †Paranecrocarcinus
- †Paranecrocarinus
- †Paranomia
Fossilized shell of the Late Cretaceous ammonoid cephalopod Parapuzosia with a human indicating its size - †Parapuzosia americana – type locality for species
- †Parapuzosia bosei – type locality for species
- †Parapuzosia sealei – type locality for species
- †Parasaniwa – or unidentified comparable form
- Parasmilia
- †Parasmilia austinensis
- †Parasmilia bullardi – type locality for species
- †Parasmilia graysonensis – type locality for species
- †Parasuchus
- †Parasuchus bransoni
- †
Mounted fossilized skeleton of the Late Triassic aetosaur Paratypothorax - †Paraxiopsis
- †Parengonoceras
- †Parmicorbula
- †Paronychodon
- †Paronychodon lacustris– or unidentified comparable form
- †
- Parvamussium
- †Parvivoluta – tentative report
- Patellina
Fossilized skull in multiple views of the Early Cretaceous armored dinosaur Pawpawsaurus - †Pawpawsaurus campbelli– type locality for species
- †
- †Pecten
- †Pedinopsis
- †Peilinia
- †Pekinosaurus– or unidentified related form
- †Pekinosaurus olseni
- †
- †Peneteius
- Periploma
- †Periplomya
- Perna – report made of unidentified related form or using admittedly obsolete nomenclature
- †Perrisonota
- Petrophyllia
- †Phacellocoenia – tentative report
- †Phacellocoenia tolmachoffana – type locality for species
- Phacoides
- †Pharodina
- †Phelopteria
- Pholadidea
Fossilized shell of the Early Triassic-Pliocene marine bivalve Pholadomya - †Pholadomya coahuilensis
- †Pholadomya goldenensis
- †Pholadomya ingens
- †Pholadomya littlei
- †Pholadomya occidentalis
- †Pholadomya shattucki
- Pholas
- †Phyllobrissus
Phymosoma - †Phytosaurus
- †Piestochilus
- †Pinella
- †Pinna
- †Pirsila
- Pitar
Fossilized shell of the Late Cretaceous ammonoid cephalopod Placenticeras - Placopsilina
- †Placotrochus
- Plagioecia
- †Planocephalosaurus
- †Planocephalosaurus lucasi – type locality for species
- Planulina
Restoration of the Late Cretaceous mosasaur Platecarpus - †Platecarpus planifrons
- †Platecarpus somenensis– or unidentified comparable form
- †Platecarpus tympaniticus
- †
- †Platiknemiceras
- †Platyceramus
- †Platyceramus cycloides
- †Platyceramus mantelli- or unidentified loosely related form
- †
Life restoration of the Early-Late Cretaceous ichthyosaur Platypterygius - †Plesiacanthoceras
- †Plesiosaurus
- †Pleuriocardia
- †Pleurocora
- †Pleuromya
- †Pleurosmilia
- †Pleurosmilia quaylei – type locality for species
- †Pleurosmilia saxifisi – type locality for species
Fossilized shell of a Pleurotomaria slit snail - †Plicatolamna – or unidentified comparable form
- †Plicatoscyllium – type locality for genus
- †Plicatoscyllium antiquum – type locality for species
- †Plicatoscyllium derameei – type locality for species
- Plicatula
- †Plioaxius
Life restoration of the Late Cretaceous mosasaur Plioplatecarpus - †Poecilocrinus
- Polinices
- †Pollex
- †Polyacrodus
- †Polyacrodus parvidens – or unidentified related form
- †Polyptychodon
- †Polyptychodon hudsoni– type locality for species
- †
- †Polytremacis
- †Polytremacis hancockensis – type locality for species
- †Polytremacis urgonensis
- †Pontocyprella
- †Poposaurus
- †Poposaurus gracilis
- †Poposaurus langstoni
- †
- †Porituberoolithus
- †Postligata
Restoration of the Late Triassic crocodile relative Postosuchus with an anachronistic human to scale - †Postosuchus kirkpatricki– type locality for species
- †
- †Praeleda
- †Prionocyclites
- †Prionocyclus
- †Priontropis
- †Priontropis woolgari – or unidentified related form
- †Priscomactra
- †Procardia
- †Procheloniceras
- †Procheloniceras albrechtiaustriae – or unidentified related form
Life restoration of the Late Cretaceous mosasaur Prognathodon preying upon an ammonoid cephalopod - †Promystriosuchus– type locality for genus
- †Promystriosuchus ehleri – type locality for species
- †Proraster
- †Proscincetes
- †Prosiren – type locality for genus
- †Prosiren elinorae – type locality for species
- †Protarca
- †Protecovasaurus – type locality for genus
- †Protecovasaurus lucasi– type locality for species
- †
- †Protexanites
- †Protoavis – type locality for genus
- †Protoavis texensis– type locality for species
- †
- †Protocallianassa
- †Protocallianassa pleuralum – type locality for species
- †Protocardia
- †Protodonax
- †Protohadros – type locality for genus
- †Protohadros byrdi– type locality for species
- †
- †Protoplatyrhina
Life restoration of the Late Cretaceous bony fish Protosphyraena - †Proxestops
- †Pseudananchys
- †Pseudananchys stephensoni – type locality for species
- †Pseudaspidoceras
- †Pseudocalycoceras
- †Pseudoclavulina
- †Pseudocoeniopsis – tentative report
- †Pseudocoeniopsis wintoni – type locality for species
Fossilized teeth of the Cretaceous shark Pseudocorax - †Pseudogaudryinella
- †Pseudohypolophus
- †Pseudolimea
- Pseudomalaxis
Fossilized shell of a Pseudomelania sea snail - †Pseudoncrocarcinus
- †Pseudoperna
- †Pseudoperna congesta
- †
- †Pseudopetalodontia
- †Pseudoptera
- †Psilomya
Life restoration of the Late Cretaceous pterosaur Pteranodon - †Pteria
- †Pteria linguaeformis – tentative report
- †Pteria rhombica
- †Pterocerella
- †Pterot
- †Pterot castrovillensis – or unidentified related form
Fossilized shell of the Jurassic-Cretaceous marine bivalve Pterotrigonia - †Pterotrigonia castrovillensis
- †Pterotrigonia eufalensis
- †Pterotrigonia eufaulensis
- †Pterotrigonia eufaulensis gabbi
- †Pterotrigonia marionensis
- †Pterotrigonia stantoni
- †Ptychomya
- †Ptychotrygon
- †Ptychotrygon vermiculata
- †Ptychotrygon winni – type locality for species
- †Pugnellus
Fossilized shell of the Early-Late Cretaceous ammonoid cephalopod Puzosia - †Puzosia crebrisulcata – or unidentified comparable form
- Pycnodonte
- †Pycnodonte belli
- †Pycnodonte mutabilis
- †Pycnodonte vesicularis
- †
- †Pycnomicrodon
- †Pyrgulifera
- †Pyrifusus
- †Pyrina
- †Pyropsis
- †Pyropsis lanhami
- †Pyropsis proxima – or unidentified related form
Q
- †Quayia – or unidentified comparable form
Mounted fossilized skeleton of the Late Cretaceous pterosaur Quetzalcoatlus - †Quetzalcoatlus northropi– type locality for species
- †
- †Quitmaniceras
- †Quitmanites
R
- †Rachiosoma
- †Rachiosoma hondoensis – type locality for species
- †Radiopecten
- Raja
- †Raja farishi – type locality for species
- †Ramsetia
- †Raninella
- †Remera
- †Remnita
- †Remondia
- Reophax
- †Reptomulticava
- †Restes
- †Rewaconodon – or unidentified related form
- †Rewaconodon tikiensis
- †
- †Rhamphidoceras – type locality for genus
- †Rhamphidoceras saxatilis – type locality for species
- Rhinobatos
- †Rhinobatos craddocki – type locality for species
- †Rhinobatos uvulatus – type locality for species
Restoration of the Late Cretaceous-Paleocene ray Rhombodus - †Rhombodus binkhorsti
- †
- †Rhytidohoplites
- †Rhytophorus – tentative report
- †Richardoestesia
- †Richardoestesia gilmorei
- †Richardoestesia isosceles– type locality for species
- †
- †Rileymillerus – type locality for genus
- †Rileymillerus cosgriffi – type locality for species
A living Ringicula sea snail - †Ringicula anfractoline
- †Ringicula arlingtonensis
- †Ringicula culbertsoni
- †Ringicula pulchella
- †Ringicula sufflata
- Rogerella
- †Rogerella cragini – type locality for species
- †Romaniceras
- Rostellaria– tentative report
- †Russellosaurus – type locality for genus
- †Russellosaurus coheni– type locality for species
- †
Life restoration of the Late Triassic phytosaur Rutiodon
S
- Salenia
- †Salenia hondoensis – type locality for species
- †Sanmiguelia
- †Sanoarca
- †Sargana
Diagram illustrating the Early Cretaceous long-necked dinosaur Sauroposeidon with anachronistic humans to scale - †Sauroposeidon proteles
- †
- †Saurornitholestes
- †Saurornitholestes langstoni– or unidentified comparable form
- †
- †Sauvagesia – tentative report
- †Saynella
- Scalpellum – tentative report
- †Scambula
Restoration of several of the Early Cretaceous-Miocene shark Scapanorhynchus - †Scapanorhynchus texanus
- †Scapanorhynchus textanus
- †
- †Scapherpeton
- †Scaphites
- †Scaphites bosquensis – type locality for species
- †Scaphites brittonensis
- †Scaphites hippocrepis- or unidentified loosely related form
- †Scaphites rugosus
- †Scaphites warreni
- †Scaphites yorkensis
- †Schizobasis
- Scintilla – tentative report
- †Sciponoceras
Fossilized snout of the Late Cretaceous ray relative Sclerorhynchus - †Sclerorhynchus pettersi – type locality for species
- †Scolomastax – type locality for genus[4]
- †Scolomastax sahlsteini – type locality for species[4]
- Scyliorhinus
- †Scyliorhinus ivagrantae – type locality for species
- †Selaginella – or unidentified comparable form
- †Seminodicrescis
- †Seminola – tentative report
- †Semiometra
- †Semionotus – or unidentified comparable form
- †Senis
- Serpula
- †Serratolamna
- †Serratolamna serrata
- †
- †Sexta
- †Sharpeiceras
- †Shuparoceras
Life restoration of the Late Triassic distant crocodilian relative Shuvosaurus - †Shuvosaurus inexpectatus– type locality for species
- †
- †Siderastrea
- †Siderastrea tuckerae – type locality for species
- †Siderofungia
- †Sierritasuchus – type locality for genus
- †Sierritasuchus macalpini– type locality for species
- †
- †Sinonia
- †Siphodictyum
- Siphotextularia
Fossils of the Cambrian-modern worm burrow ichnogenus Skolithos - Smilotrochus
- †Smilotrochus palmerae – type locality for species
- †Solanocrinites
- Solemya
- †Solemya bilix – tentative report
- †Solenoceras
- †Solyma
- †Spalacotheroides – type locality for genus
- †Spalacotheroides bridwelli – type locality for species
- †Spathites
- †Specus
- Opalized shell of the Late Cretaceous ammonoid cephalopod Sphenodiscus †Sphenodiscus
- †Sphenodiscus intermedius
- †Sphenodiscus lobatus
- †Sphenodiscus pleurisepta
- †Sphenodiscus tirensis
- †Spinosuchus – type locality for genus
- †Spinosuchus caseanus– type locality for species
- †
- †Spironema
- Spiroplectammina
- Spondylus
- †Spondylus hilli
- †Spondylus munitus
- †Spondylus siccus – type locality for species
Fossilized tooth of the Late Cretaceous shark Squalicorax - †Squalicorax kaupi
- †Squalicorax pristodontus
- †
- Squalus
- †Squalus huntensis – type locality for species
- †Squatigaleus
- †Squatigaleus sulphurensis – type locality for species
- †Squatirhina
- †Squatirhina americana
- †
- †Stamenocella
- †Stantonella
- †Stearnsia
- †Stelidioseris
- †Stelidioseris bellensis – type locality for species
- †Stelidioseris pattoni – type locality for species
- †Stelidioseris whitneyi – type locality for species
- †Stellatopollis
- †Steorrosia
- Stephanocoenia – tentative report
- †Stephanomorpha – tentative report
- †Stephanomorpha saxirotundi – type locality for species
- †Stoliczkaia
- †Stoliczkaia argonautiformis
- †Stoliczkaia conlini – type locality for species
- †Stoliczkaia crotaloides
- †Stoliczkaia scotti
- †Stoliczkaia texana – type locality for species
- Stomatopora
- †Stomohamites – tentative report
- Striarca
- †Striaticostatum
Life restoration of the Late Cretaceous ostrich dinosaur Struthiomimus - †Suarodon
- †Sumitomoceras
- †Syncyclonema
- †Synorichthys – tentative report
T
- †Tancredia – tentative report
- †Tanyosphaeridium
- †Tarrantites
- †Tarrantoceras
- †Tarsomordeo – type locality for genus[5]
- †Tarsomordeo winkleri – type locality for species[5]
- †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
Shell of a Tellina, or tellin - †Tellinimera
- †Tenea
Life restoration of the Early Cretaceous Iguanodon relative Tenontosaurus - †Tenontosaurus dossi– type locality for species
- †
- †Tentontosaurus
- †Tenuipteria
- Terebratulina
- †Terebrimya
- Teredolites
- †Terlinguachelys – type locality for genus
- †Terlinguachelys fischbecki– type locality for species
- †
Fossilized skull of the Late Cretaceous crocodilian relative Terminonaris - †Terminonaris robusta– or unidentified comparable form
- †
- †Tetragonites
- †Tetragonites brazoensis – type locality for species
- †Texabatis – type locality for genus
- †Texabatis corrugata – type locality for species
- †Texacephale – type locality for genus
- †Texacephale langstoni– type locality for species
- †
- †Texagryphea
- †Texanites
- †Texasetes – type locality for genus
- †Texasetes pleurohalio– type locality for species
- †
- †Texasia
- †Texicaprina
- †Texigryphaea
- †Texigryphea
Fossilized shell of the Carboniferous-modern foraminiferan Textularia - †Thamnasteria
- †Thamnasteria hoffmeisteri – type locality for species
- †Thamnoseris – tentative report
- †Thamnoseris morchella – type locality for species
- †Thecosmilia – tentative report
- †Thomasites
- †Thomelites
- †Thryptodus[6]
- †Thryptodus loomisi – type locality for species[6]
- †Thylacus
- †Thyracella
- †Tiarasmilia – type locality for genus
- †Tiarasmilia casteri – type locality for species
- †Tibiaporrhais – tentative report
- †Tintorium
- †Tintorium pogodaformis – or unidentified comparable form
- †Titanosarcolites
- †Tornatellaea
Mounted fossilized skeleton of the Late Cretaceous horned dinosaur Torosaurus - †Torosaurus utahensis– or unidentified comparable form
- †
- †Toucasia
- †Tovula
- †Trachybaculites
- Trachycardium
- †Trachycardium eufaulensis
- †Trachycardium tinninense
- †
- †Trachyscaphites
- †Trachyscaphites densicostatus – type locality for species
- †Trachyscaphites porchi
- †Trachyscaphites spiniger
- †Trigonarca – tentative report
- †Trigonia
- †Trilophosaurus – type locality for genus
- †Trilophosaurus buettneri– type locality for species
- †Trilophosaurus jacobsi
- †
Life restoration of the Late Cretaceous plesiosaur Trinacromerum - †Trinacromerum bentonianum– type locality for species
- †
- †Trinitichelys – type locality for genus
- †Trinitichelys hiatti – type locality for species
- †Triodus
- †Triopticus – type locality for genus
- †Triopticus primus – type locality for species
- †Tristix
Fossilized shell in multiple views of the Early-Late Cretaceous sea snail Trochactaeon - Trochocyathus
- †Trochocyathus gardnerae – type locality for species
- †Trochocyathus scottianus – type locality for species
- †Trochocyathus sellardsi – type locality for species
- †Trochocyathus taylorensis – type locality for species
- †Trochocyathus wintoni – type locality for species
- †Trochocyathus woolmani
- †Trochoseris
- †Trochoseris shattucki – type locality for species
- †Trochosmilia
- †Trochosmilia stainbrooki – type locality for species
- †Troostella
- Tryonia
- †Tundora
- Turboella
- †Turgidodon
- †Turgidodon lillegraveni – or unidentified comparable form
- †Turrilites
- †Turrilites acutus
- †Turrilites saudersorum
- †
Fossilized shells of the Late Jurassic-modern tower snail Turritella - †Turritella anstini
- †Turritella bilira
- †Turritella delriensis
- †Turritella forgemoli– or unidentified comparable form
- †Turritella hilgardi
- †Turritella houstonia
- †Turritella macnairyensis
- †Turritella marnochi
- †Turritella paravertebroides
- †Turritella quadrilira
- †Turritella seriatimgranulata
- †Turritella shuleri
- †Turritella trilira
- †Turritella vertebroides
- †Turritella vertebroides jonesi
- †Turritella winchelli
- †Turseodus – tentative report
- †Tylosaurus
- †Tylosaurus kansasensis
- †Tylosaurus nepaeolicus
- †Tylosaurus proriger– or unidentified comparable form
- †
- †Typothorax
Fossilized skeleton of the Late Cretaceous tyrannosaur Tyrannosaurus - †Tyrannosaurus rex
- †
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U
- †Uddenia
- †Uktenadactylus
- †Uktenadactylus wadleighi– type locality for species
- †
- †Unicardium
- Unio
A living Upogebia mud shrimp - †Urceolabrum
- †Urceolabrum mantachieensis – tentative report
- †Urceolabrum tuberculatum
- †Ursirivus
V
- Vaginulina
- Valvulineria
Life restoration of the Late Triassic reptile Vancleavea - †Vancleavea campi
- †
- †Vascellum
- †Vascellum elegans
- †Vascellum fortispirae
- †Vascellum leve
- †Vascellum magnum
- †Vascellum minusculum
- †Vascellum mundum
- †Vascellum mundum subteres
- †Vascellum pingue
- †Vascellum procerum
- †Vascellum rivanum
- †Vascellum robustum
- †Vascellum subleve
- †Vascellum tensum
- †Vascellum vascellum
- †Vascellum vascellum pressulum
- †Vascellum vascellum subornatum
- †Vascellum vianum
Fossilized shell of the Late Cretaceous ammonoid cephalopod Vascoceras - †Vascoceras cauvini – or unidentified comparable form
- †Vascoceras proprium
- †Vascoceras silvanense
- Venericardia
- †Veniella
- †Vetericardiella
- †Vicarya
- †Vinella
Shell of a Viviparus freshwater snail - Volsella
- †Volutomorpha
- †Voysa
- Vulsella
W
- †Wadeopsammia
Fossilized partial skulls of the Early Cretaceous crocodilian Wannchampsus - †Wannchampsus kirpachi– type locality for species
- †
- †Wannia
- †Wannia scurriensis– type locality for species
- †
- †Washitaster
- †Weeksia
- †Woodbinax
- †Woodbinesuchus – type locality for genus
- †Woodbinesuchus byersmauricei– type locality for species
- †
- †Worthoceras
- †Worthoceras gibbosum
- †Worthoceras vermiculum – or unidentified comparable form
- †Wrightoceras
X
- Xanthosia
- †Xenacanthus – report made of unidentified related form or using admittedly obsolete nomenclature
- Xenophora
Life restoration of the Cretaceous bony fish Xiphactinus - †Xylophagella
Y
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
