This list of the Cenozoic 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 66 million and 10,000 years of age.
A
- †Abdounia
- †Abdounia enniskilleni
- †Abdounia recticona
- Abra
- †Abra nitens
- †Abra petropolitana
- Acanthocardia
- †Acanthocardia tuomeyi
- Acar
- †Acar aspera
- Acirsa
- †Acirsa whitneyi
- †Aclistomycter
- †Aclistomycter dunagani – type locality for species
- †Aclistomycter middletoni – type locality for species
- Acris
- Acteocina
- Acteon
- †Acteon idoneus
- †Acteon pomilis
- †Acteon pomilius
- †Acteon punctatus
- Adeonellopsis – tentative report
- †Adjidaumo
- †Adjidaumo minutus – or unidentified comparable form
- Admetula
- †Admetula irregularis – type locality for species
- Adrana
- †Adrana aldrichiana
- Aedes
- †Aelurodon
- †Aelurodon ferox
- †Aelurodon taxoides
- †Aepycamelus
- Agaronia
- †Agaronia bombylis
- †Agaronia media
- †Agaronia mediavia
- Agkistrodon
- †Agriocharis
- †Agriocharis anza
- †Agriochoerus
- †Agriochoerus antiquus
- †Agriotherium
- †Agriotherium schneideri
- †Agrobuccinium
- †Agrobuccinum
- †Agrobuccinum mansfieldi
- †Aguascalientia
- †Aguispira
- †Aguispira alternata
- Akera
- †Akera texana
- †Alforjas
- †Alforjas taylori – type locality for species
- Aliculastrum
- †Alilepus
- †Alilepus wilsoni
- †Allaeochelys – or unidentified comparable form
- Alligator
- †Allognathosuchus
- †Allomorone
- †Allomorone burlesonis
- †Allophaiomys
- †Allophaiomys pliocaenicus
- †Altaspiratella
- †Altaspiratella bearnensis – tentative report
- Alvania
- †Alveinus
- †Alveinus minutus
- Amaea
- †Amaea macula – type locality for species
- †Amaea texana – type locality for species
- †Amaurellina
- †Amaurellina plummeri – type locality for species
- †Amaurellina singleyi
- †Amblema
- †Ambystoma
- †Amebelodon
- †Amebelodon britti
- †Amebelodon floridanus
- †Amebelodon fricki – or unidentified comparable form
- †Ameiurus
- †Amentogerdiopollenites – type locality for genus
- †Amentogerdiopollenites oligocenensis – type locality for species
- †Amentoplexipollenites – type locality for genus
- †Amentoplexipollenites catahoulaensis – type locality for species
- Amnicola
- †Amnicola integra
- †Amphicyon
- †Amphicyon longiramus
- †Amphicyon pontoni
- †Amphimachairodus
- †Amphimachairodus coloradensis – or unidentified comparable form
- Amphiuma
- †Amphiuma antica – type locality for species
- †Amplobalanus – type locality for genus
- †Amplobalanus texensis – type locality for species
- †Ampullina
- †Ampullina dumblei
- †Ampullina recurva
- Amuletum
- †Amuletum curvocostatum
- Amusium
- †Amusium zinguli – type locality for species
- †Amynodon
- †Amynodon advenus
- †Amynodontopsis
- †Amynodontopsis bodei
- Anadara
- †Anadara vaughani
- †Anancus
- †Anancus defloccatus – type locality for species
- †Anancus orarius – type locality for species
- †Anchitheriomys
- †Anchitherium
- †Anchitherium navasotae – type locality for species
- Ancilla
- †Ancilla staminea – type locality for species
- †Ancilla staminea punctulifera
- †Angelarctocyon
- †Angelarctocyon australis – type locality for species
- †Angulithes
- †Angulithes elliotti
- †Anilioides
- †Anilioides nebraskensis – or unidentified comparable form
- †Anisaster
- †Anisaster mossomi
- †Annona
- †Annona ampla
- Anodontia
- †Anodontia reklawensis – type locality for species
- †Anomalofusus
- Anomia
- †Anomia argentaria
- †Anomia ephippioides
- †Anomia lisbonensis
- Antalis
- †Antalis minutistriatum
- †Antalis mississippiense
- †Antalis palmerae – type locality for species
- Anthonomus – tentative report
- †Antiguastrea
- †Antiguastrea cellulosa
- Antillophos
- †Antillophos multilineatum – type locality for species
- Antrozous
- †Aphelops
- †Aphelops malacorhinus
- †Aphelops megalodus
- †Aphelops mutilus
- †Aplexia
- †Aplexia hypnorum
- Aplodinotus
- †Apocynophyllum
- †Apocynophyllum wilcoxense
- †Apternodus
- †Apternodus iliffensis
- Aquila
- Arca
- †Arca petropolitana
- †Archaeohippus
- †Archaeohippus blackbergi – type locality for species
- †Archaeolagus
- †Archaeolagus acaricolus – or unidentified comparable form
- †Archaeolagus buangulus – type locality for species
- †Archaeotherium
- †Archaeotherium mortoni – or unidentified comparable form
- Architectonica
- †Architectonica aldrichi – type locality for species
- †Architectonica alveatum
- †Architectonica amoena
- †Architectonica bellensis
- †Architectonica bellistriata
- †Architectonica bimixta
- †Architectonica elaborata
- †Architectonica fimbriaea – type locality for species
- †Architectonica geminicostata – type locality for species
- †Architectonica huppertzi
- †Architectonica meekana
- †Architectonica ornata
- †Architectonica phoenicea
- †Architectonica planiformis
- †Architectonica reklawensis – type locality for species
- †Architectonica texcarolina
- †Architectonica vespertina
- Arcopagia
- †Arcopagia trumani
- †Arctocyon
- †Arctocyon mumak – or unidentified comparable form
- †Arctodus
- †Arctonasua
- †Arctonasua gracilis – or unidentified comparable form
- †Ardynomys
- †Ardynomys occidentalis
- Argobuccinum
- Argyrotheca
- †Argyrotheca powersi
- Arius – or unidentified comparable form
- Arizona
- †Arretotherium
- †Arretotherium acridens
- †Artocarpus
- †Artocarpus lessigiana
- Astarte
- Asthenotoma
- †Asthenotoma eximia
- †Astrohippus
- †Astrohippus ansae – type locality for species
- †Astrohippus stockii
- Athleta
- †Athleta dalli
- †Athleta kerensensis
- †Athleta limopsis
- †Athleta limposis
- †Athleta lisbonensis
- †Athleta olssoni
- †Athleta petrosa
- †Athleta rugatus
- †Athleta stenzeli
- †Athleta symmetricus
- †Athleta texanus
- †Athleta wheelockensis
- †Athletea
- †Athletea petrosus
- Atlanta
- †Atlanta eocenica
- †Atopomys
- †Atopomys texensis
- Atractosteus
- †Atractosteus spatula
- †Atractosteus tristoechus – tentative report
- Atrina
- †Atrina cawcawensis
- †Atrina gardnerae
- †Aturia
- †Aturia brazoensis
- †Aturia laticlavia
- †Aturia triangula
- †Aturia turneri
- Atys
- †Atys atysopsis
- †Atys trapaquara
- †Aulolithomys
- †Aulolithomys bounites
- †Australocamelus
- †Australocamelus orarius – type locality for species
- †Auxontodon
- †Awateria
- †Awateria retifera
B
- †Baioconodon
- Baiomys
- †Baiomys rexroadi
- †Baiotomeus
- Bairdia
- †Bairdia oviformis
- Balanophyllia
- †Balanophyllia augustinensis – type locality for species
- †Balanophyllia desmophyllum
- †Balanophyllia irrorata
- †Balanophyllia ponderosa
- Balanus
- Balcis
- †Balcis exilis
- †Balcis tenua
- †Balcis wheeleri
- †Baluchicardia
- †Baluchicardia bulla
- †Baluchicardia hesperia
- †Baluchicardia moa
- †Baluchicardia whitei
- †Baluchicardia wilcoxensis
- Bankia
- †Bankia petalus – type locality for species
- †Baptemys – or unidentified comparable form
- Barbatia
- †Barbatia cuculloides
- †Barbatia deusseni
- †Barbatia ludoviciana
- †Barbatia reklawensis – type locality for species
- †Barbatia salebrosus – type locality for species
- †Barbatia uxorispalmeri
- †Barbourofelis
- Bassariscus
- †Bassariscus casei
- Bathyarca
- †Bathyarca claibornica – type locality for species
- †Bathygenys
- †Bathygenys reevesi – type locality for species
- Bathytoma
- †Bathytoma nonplicata – or unidentified comparable form
- Bathytormus
- †Bathytormus flexurus
- †Batrachosauroides
- †Batrachosauroides dissimulans
- †Bauzaia – type locality for genus
- †Bauzaia lamberi – type locality for species
- †Bauzaia melrosensis
- †Bauzaia mucronata
- †Beckiasorex
- †Beckiasorex hibbardi
- Bela – report made of unidentified related form or using admittedly obsolete nomenclature
- †Bela rebeccae
- †Belosaepia
- †Belosaepia pennae – type locality for species
- †Belosaepia ungula
- †Belosaepia ungulata
- †Belosepia
- †Belosepia pennae – type locality for species
- †Bensonomys
- †Bensonomys coffeyi
- †Beretra
- †Beretra ornatula – or unidentified related form
- Bison
- †Bison alaskensis
- †Bison antiquus
- †Bison latifrons
- Bittiolum – report made of unidentified related form or using admittedly obsolete nomenclature
- †Bittiolum webbi
- Bittium
- †Bittium anita
- †Bittium estellense
- †Bittium estellensis
- †Bittium henryleai
- †Bittium ridgei – type locality for species
- †Bittium tresquatrum – type locality for species
- †Blancocamelus
- †Blancocamelus meadei
- †Blancotherium – type locality for genus[1]
- †Blancotherium buckneri – type locality for species. Formerly known as Gnathabelodon buckneri.[1]
- Blarina
- †Blarina brevicauda – or unidentified comparable form
- †Blastomeryx
- †Blastomeryx vigoratus – type locality for species
- †Boavus – tentative report
- †Boavus affinis
- †Bolis
- †Bolis enterogramma
- †Bombacacidites
- †Bombacacidites paulus
- †Bomburia – or unidentified comparable form
- †Bonellitia
- †Bonellitia bastropensis
- †Bonellitia parilis
- †Borealosuchus
- Bornia
- †Bornia prima
- †Bornia zapataensis
- †Borophagus
- †Borophagus diversidens
- †Borophagus hilli – type locality for species
- †Borophagus pugnator – or unidentified comparable form
- †Borophagus secundus
- †Bouromeryx
- †Bouromeryx submilleri
- †Boverisuchus
- †Boverisuchus vorax – or unidentified comparable form
- Brachidontes
- †Brachidontes alabamensis
- †Brachidontes saffordi
- †Brachidontes texanus
- Brachiodontes
- †Brachyerix – tentative report
- †Brachyerix hibbardi – type locality for species
- †Brachyhyops
- †Brachyhyops viensis
- †Brachyhyops wyomingensis
- †Brachyopsigale
- †Brachyopsigale dubius
- †Brachyrhynchocyon
- †Brachyrhynchocyon dodgei
- †Brauzaia
- †Brauzaia melrosensis
- †Brazosiella – type locality for genus
- †Brazosiella kokeni – type locality for species
- †Brazosiella moselevi
- †Brazosiella moseleyi – type locality for species
- Bregmaceros
- †Bregmaceros troelli – type locality for species
- Brissus
- †Brissus exiguus
- †Bryozoan
- Bufo
- †Buisnictis
- †Buisnictis breviramus
- Bulimulus
- Bullia
- †Bullia altilis – type locality for species
- †Bullia ancillops
- †Bullia ellipticum – type locality for species
- †Bullia tenera
- †Bulovia
- †Bulovia weisbordi
C
- Cadulus
- †Cadulus abruptus
- †Cadulus aldrichi
- †Cadulus bisissura – type locality for species
- †Cadulus ouachitensis
- †Cadulus phoenicea
- †Cadulus subcoarcuatus
- †Cadulus turgidus
- Caecum – or unidentified comparable form
- †Caenolambda
- †Caenolambda jepseni
- Caestocorbula
- †Caestocorbula wailesiana
- †Calamagras
- †Calamagras weigeli
- †Calappilia
- †Calappilia diglypta
- †Calippus
- †Calippus cerasinus – or unidentified comparable form
- †Calippus circulus – type locality for species
- †Calippus large informal
- †Calippus martini
- †Calippus placidus
- †Calippus proplacidus
- †Calippus regulus – type locality for species
- Callianassa
- †Callianassa brazoensis
- †Callianassa wechesensis
- Callucina
- †Callucina sabelli
- †Calorhadia
- †Calorhadia bella
- †Calorhadia compsa
- †Calorhadia diminutia – type locality for species
- †Calorhadia opulenta
- Calyptraea
- †Calyptraphorus
- †Calyptraphorus aldrichi
- †Calyptraphorus popenoe
- †Calyptraphorus trinodiferus
- †Calyptraphorus velatus
- †Camelops
- †Camelops hesternus – type locality for species
- †Camelops minidokae
- †Camptoceratops
- †Camptoceratops priscus – type locality for species
- Cancellaria
- †Cancelrana
- †Cancelrana finexa
- Candona
- †Candona lactea – or unidentified comparable form
- †Candona nyensis
- Canis
- †Canis armbrusteri
- †Canis dirus
- †Canis edwardii
- †Canis latrans
- †Canis lepophagus – type locality for species
- Cantharus
- †Cantharus casteri
- †Capromeryx
- †Capromeryx furcifer
- Capulus
- †Capulus americanus
- Carapus
- †Carapus smithvillensis – type locality for species
- Carcharhinus
- †Carcharhinus gibbesi
- Cardiomya
- †Cardiomya fredsmithi – type locality for species
- Cardium
- †Caricella
- †Caricella cherokeensis
- †Caricella demissa
- †Caricella heilprini
- †Caricella stenzeli
- †Carpocyon
- †Carpocyon robustus
- †Carpolithus
- Carychium
- Caryocorbula
- †Caryocorbula cappa
- †Caryocorbula coloradoensis
- †Caryocorbula deusseni
- †Caryocorbula engonatoides
- †Caryocorbula kennedyi
- †Caryocorbula marquezensis – type locality for species
- Caryophyllia
- †Caryophyllia constricta – type locality for species
- †Caryophyllia mediavia – type locality for species
- †Caryophyllia texana – type locality for species
- Castor
- Catagonus
- †Caveola
- †Caveola ostium – type locality for species
- Celleporaria
- †Celleporaria granulosa
- Celtis
- †Centetodon
- †Centetodon chadronensis
- †Centetodon pulcher
- Centropomus – tentative report
- Ceratobulimina
- †Ceratobulimina eximia
- †Ceratogaulus
- †Ceratogaulus anecdotus – or unidentified comparable form
- †Cerdocyon
- †Cerdocyon texanus – type locality for species
- Cerithiella
- †Cerithiella terebropsis
- †Cerithioderma
- †Cerithioderma primum
- Cerithiopsis
- Cerithium – tentative report
- Chaetodipus
- Chama
- †Chama taylorensis – type locality for species
- Charina
- †Charina prebottae
- †Charophyte
- †Charophyte oogonia
- †Chasmaporthetes
- †Chasmaporthetes ossifragus
- †Chiromyoides
- †Chiromyoides minor – or unidentified comparable form
- †Chiromyoides potior
- Chironomus
- †Chironomus kirklandi – type locality for species
- Chlamys
- †Chlamys beverlyi
- †Chlamys burlesonensis
- †Chriacus
- †Chriacus baldwini
- †Cimolodon
- †Cimomia
- †Cimomia vaughani – type locality for species
- Cirsotrema
- †Cirsotrema nassulum
- Cissus
- †Cissus pulcherrima
- †Claibornichthys
- †Claibornichthys troelli – type locality for species
- Clavilithes
- †Clavilithes acus – type locality for species
- †Clavilithes chamberlaini
- †Clavilithes kennedyanus
- †Clavilithes parvetorbis – type locality for species
- †Clavilithes penrosei
- †Clavilithes regexus
- †Clavilithes texanus
- Clavus – tentative report
- †Clavus dipta
- †Cleonidius
- †Cleonidius channingensis – type locality for species
- †Cleonidius ritablancaensis – type locality for species
- Clithrocytheridea
- †Clithrocytheridea garretti
- Closia
- †Closia semen
- †Closia semenoides
- Clypeaster
- †Clypeaster oxybaphon – or unidentified comparable form
- †Clypeaster rogersi
- †Cochlefusia
- †Cochlefusia serrae – type locality for species
- Cochlespira
- †Cochlespira bastropensis
- †Cochlespira bella
- †Cochlespira columbaria
- †Cochlespira engonata
- †Cochlespira greggi – tentative report
- †Cochlespirella
- †Cochlespirella nana
- †Cochlespiropsis
- †Cochlespiropsis engonata
- Cochliolepis
- †Cochliolepis palaeocenica – type locality for species
- Cochlodesma
- †Cochlodesma howei – or unidentified comparable form
- †Cochlodesma ovalis – type locality for species
- †Colodon
- †Colodon stovalli
- Coluber
- Colubraria
- †Colubraria cedri
- Columbella – report made of unidentified related form or using admittedly obsolete nomenclature
- †Columbella punctostriata
- †Colwellia
- †Colwellia bilineata – type locality for species
- †Combretum
- †Combretum bartonii
- Cominella – or unidentified comparable form
- †Cominella pachecoi
- Conomitra
- †Conomitra texana
- Conopeum
- †Conopeum damicornis
- †Contracuparius – type locality for genus
- †Contracuparius huntsvillensis – type locality for species
- †Contracuparius robustus – type locality for species
- Conus
- †Conus sauridens – type locality for species
- †Conus smithvillensis
- †Copemys
- †Coptostoma
- †Coptostoma rameum
- †Coptostoma ulmulum
- Corbicula
- †Corbicula texana
- Corbula
- †Corbula alabamiensis
- †Corbula augustae
- †Corbula cappa
- †Corbula coloradoensis
- †Corbula kennedyi
- †Corbula marquezensis – type locality for species
- †Corbula milium
- †Corbula texana – type locality for species
- †Cormohipparion
- †Cormohipparion fricki – type locality for species
- †Cormohipparion goorisi
- †Cormohipparion ingenuum – type locality for species
- †Cormohipparion skinneri – type locality for species
- †Cornulina
- †Cornulina armigera
- †Cornulina dalli
- †Cornulina minax – type locality for species
- †Coronia
- †Coronia alternata
- †Coronia anacona
- †Coronia childreni
- †Coronia genitiva
- †Coronia margaritosa
- †Coronia mediavia
- †Coronia nodoidea
- †Coronia nucleata
- †Coronia ostrarupis
- †Coronia sublerchi
- †Coronia taylori – type locality for species
- †Corvina
- †Corvina intermedia
- Corvus
- †Coryphodon
- †Coryphodon armatus
- †Cranioceras
- †Cranioceras teres – type locality for species
- Crassatella
- †Crassatella antestriata
- †Crassatella gabbi
- †Crassatella ioannes
- †Crassatella texalta
- †Crassatella texana
- †Crassatella trapaquara
- Crassinella
- †Crassinella aldrichi
- †Crassinella minor
- †Crassinella pteleina
- Crassostrea
- †Crassostrea amichel
- †Crassostrea contracta
- †Crassostrea frionis
- Cratogeomys
- Crenella
- †Crenella margaritacea
- †Crenodonta
- †Crenodonta perplicata
- †Creonella
- Creseis
- †Cristellaria
- †Cristellaria orelliana
- †Cristellaria rotulata
- †Cristellaria torrida
- Crotalus
- Crotaphytus
- †Cryptochorda
- †Cryptochorda eureia
- †Cryptochorda stenostoma
- Cryptotis
- Ctenoides
- †Ctenoides bastropensis
- †Cubitostrea
- †Cubitostrea divaricata
- †Cubitostrea lisbonensis
- †Cubitostrea petropolitana
- †Cubitostrea sanctiaugustini
- †Cubitostrea sellaeformis
- †Cubitostrea smithvillensis
- Cucullaea
- †Cucullaea kaufmanensis
- †Cucullaea macrodonta
- †Cucullaea saffordi
- †Cucullaea texana
- Culex
- Cuna
- †Cuneocorbula
- †Cuneocorbula subengonata
- †Cupanites
- †Cupanites formosus
- †Cupidinimus
- Cuspidaria
- †Cuvieronius
- Cyclammina
- Cyclostremiscus
- †Cyclostremiscus axacuus
- †Cyclostremiscus dalli
- †Cyclostremiscus exacuus
- †Cyclostremiscus sylvaerupis
- Cylichna
- †Cylichna bicarinata – type locality for species
- †Cylindracanthus
- †Cylindrodon
- Cyllene – or unidentified comparable form
- †Cyllene bellana
- †Cynarctoides
- †Cynarctoides whistleri
- †Cynarctus
- †Cynarctus crucidens
- Cynomys
- †Cynomys ludovicianus
- †Cynomys spenceri
- Cypraea
- Cypraedia
- †Cypraedia subcancellata – type locality for species
- †Cypraeorbis
- †Cypraeorbis bulbus – type locality for species
- Cypridopsis
- †Cypridopsis vidua
- Cythara
- †Cythara schotti
- Cythere
- †Cythere claiborniana
- †Cythere evergreenica
- †Cythere leeana
- †Cythere orelliana
- †Cythere texana
- †Cythereis
- †Cythereis bursilloides
- †Cythereis davidwhitei
- †Cythereis elmana
- †Cythereis elongata – type locality for species
- †Cythereis fragillissima – type locality for species
- †Cythereis hilgardi
- †Cythereis linospinosa – type locality for species
- †Cythereis montgomeryensis
- †Cythereis quinquespinosa – type locality for species
- †Cythereis reklawensis – type locality for species
- †Cythereis russelli
- †Cythereis sinuata – type locality for species
- †Cythereis smithvillensis – type locality for species
- †Cythereis spinosa – type locality for species
- †Cythereis splendens – type locality for species
- †Cythereis uptonensis – type locality for species
- †Cythereis washburni – type locality for species
- Cytherella
- †Cytherella fimbricinctus – type locality for species
- †Cytherella texana
- Cytheridea
- †Cytheridea compressa – type locality for species
- †Cytheridea habropapillosa – type locality for species
- †Cytheridea mulleri
- †Cytheridea subovata – type locality for species
- †Cytheridea subpyriformis – type locality for species
- Cytheropteron
- †Cytheropteron minutum – type locality for species
- †Cytheropteron virgineum
D
- †Dakotaophis
- †Dakotaophis greeni
- †Daphoenictis
- †Daphoenodon
- †Daphoenodon notionastes
- †Daphoenus
- †Daphoenus lambei – or unidentified comparable form
- Dasyatis
- Dasypus
- †Delahomeryx
- †Delahomeryx browni – type locality for species
- Dentalium
- †Dentalium mediaviense
- †Dentalium palmerae – type locality for species
- †Dentalium thalloides – or unidentified related form
- Dermatemys
- †Desmatippus
- †Desmatippus texanus
- †Diablomomys – type locality for genus
- †Diablomomys dalquesti – type locality for species
- †Diaphyodus
- †Diaphyodus wilsoni – type locality for species
- †Dibelodon
- †Dibelodon praecursor
- †Diceratherium
- †Diceratherium annectens
- †Diceratherium armatum
- Didelphis
- †Dillenites
- †Dillenites microdentatus
- †Dillenites texensis
- †Dinofelis
- †Dinofelis palaeoonca
- †Dinohippus
- †Dinohippus interpolatus – type locality for species
- †Dinohippus mexicanus – or unidentified comparable form
- †Dinohyus
- Diplodonta
- †Diplodonta anterproductus
- †Diplodonta petropolitana
- †Diplodonta satex
- Diplotaxis – or unidentified comparable form
- Dipodomys
- †Dipodomys merriami
- †Dipodomys ordii
- †Dipodomys pattersoni – type locality for species
- †Dipodomys spectabilis
- †Dirocerithium
- †Dirocerithium wechesense
- †Discotrochus
- †Discotrochus orbignianus
- †Discradisca
- †Discradisca littigensis
- Disonycha
- †Dolicholatirus
- †Dolicholatirus harrisi
- †Dolicholatirus leaensis
- †Dolicholatirus obtusus
- †Dolicholatirus singleyi
- †Domenginella
- †Domenginella ridgei – type locality for species
- †Domingella
- †Domingella ridgei – type locality for species
- Dorsanum
- †Dorsanum – type locality for species informal
- †Dorsanum scalatum
- †Drepanomeryx
- †Drepanomeryx falciformis
- †Dryophyllum
- †Dryophyllum tennesseensee
- †Duchesneodus
- †Duchesneodus uintensis
E
- †Eburneopecten
- †Eburneopecten scintillatus
- †Echmatemys
- †Ectypodus
- †Ectypodus musculus
- †Edaphocyon
- †Edaphocyon pointblankensis – type locality for species
- †Ekokenia
- †Ekokenia eporrecta
- Elaphe
- †Elaphe guttata
- †Elaphe nebraskensis
- †Elaphe obsoleta
- Eleutherodactylus
- †Ellipsechinus
- †Ellipsechinus prisca
- †Ellisella
- Emarginula – or unidentified comparable form
- Endochironomus
- Endopachys
- †Endopachys maclurii
- Engelhardia[2]
- †Engelhardia trinitiensis – type locality for species[2]
- †Eoancilla
- †Eoancilla hordea – type locality for species
- †Eocypraea
- †Eocypraea estellensis
- †Eocythara – type locality for genus
- †Eocythara lineata – type locality for species
- †Eocythara texanum – type locality for species
- †Eodichroma – type locality for genus
- †Eodichroma mirifica – type locality for species
- †Eodrilla
- †Eodrilla texana
- †Eodrillia
- †Eodrillia texana
- †Eodrillia texanopsis
- †Eomellivora
- †Eopleurotoma
- †Eopleurotoma bimoniata
- †Eopleurotoma lisboncola
- †Eopleurotoma nodocarinata
- †Eosolea – type locality for genus
- †Eosolea texana – type locality for species
- †Eosurcula
- †Eosurcula moorei – type locality for species
- †Eosurcula superpons
- †Eotylopus
- †Eotylopus reedi – or unidentified comparable form
- Epicauta
- †Epicyon
- †Epicyon haydeni
- †Epicyon saevus
- †Epihippus
- †Epihippus gracilis
- Epilucina
- Episcynia
- †Episcynia bastropensis
- Episiphon
- †Episiphon gracilis – type locality for species
- Epitonium
- †Epitonium cookii
- †Epitonium dolosum
- †Epitonium multiliniferum
- †Epitriplopus
- Eponides
- †Eponides patelliformis
- †Eponides texana
- Eptesicus
- †Eptesicus fuscus
- †Eptesicus hemphillensis – type locality for species
- Equus
- †Equus alaskae – or unidentified comparable form
- †Equus complicatus
- †Equus conversidens
- †Equus francisci – type locality for species
- †Equus giganteus
- †Equus idahoensis
- †Equus midlandensis
- †Equus scotti – type locality for species
- †Equus semiplicatus
- †Equus simplicidens
- Erethizon
- †Eucheilodon
- †Eucheilodon reticulata
- †Eucyon
- Eucytherura
- †Eucytherura claibornensis – type locality for species
- Eulima
- †Eulima extremis
- †Eulima tenaxa
- Eumeces
- †Eumeces fasciatus
- †Eumeces miobsoletus – type locality for species
- †Eumeces obsoletus
- †Euonymus
- †Euonymus glanduliferus
- Eupleura
- †Eupleura morula
- †Euryochetus
- †Euryochetus punctatum – type locality for species
- Eurytellina
- †Eurytellina milamensis – type locality for species
- †Eurytellina mooreana
- †Eurytellina papyria
- Euspira
- †Euspira aldrichi
- †Euspira jacksonensis
- †Euspira marylandica
- †Euspira perspecta
- †Eutrephoceras
- †Eutrephoceras reesidei
- †Eutypomys
- †Eutypomys inexpectatus – type locality for species
- †Exilia
- †Exilia pergracilis
F
- Falsifusus
- †Falsifusus apicalis
- †Falsifusus bastropensis
- †Falsifusus harrisi
- †Falsifusus houstonensis
- †Falsifusus ludlovicianus
- †Falsifusus ottonis
- †Falsifusus perobliquus
- †Falsifusus tobar
- Fasciolaria – tentative report
- †Fasciolaria plummeri
- Felis
- †Felis lacustris
- †Felis rexroadensis
- Fibularia
- †Fibularia texana
- †Ficopsis
- †Ficopsis nucleoides – type locality for species
- †Ficopsis penita
- †Ficopsis texana
- Ficus
- †Ficus berryi
- †Ficus mississippiensis
- †Fimbriatella
- †Fimbriatella iugum – type locality for species
- Flabellum
- †Flabellum concoideum
- †Flabellum conodeum – tentative report
- †Flabellum conoideum – type locality for species
- †Flabellum cuneiforme
- †Flabellum johnsonae
- †Floridachoerus – tentative report
- †Floridachoerus olseni
- †Floridatragulus
- †Floridatragulus hesperus
- †Floridatragulus nanus
- †Floridatragulus texanus
- Formica
- †Formica eoptera – type locality for species
- Fossaria
- †Fossaria dalli
- †Fossaria obrussa
- Fulgurofusus
- †Fulgurofusus quercollis
- †Fusconaia
- †Fusconaia undulata – or unidentified comparable form
- Fusimitra
- †Fusimitra adamsi
- †Fusimitra millingtoni
- †Fusimitra perexilis
- †Fusimitra polita
- Fusinus
- †Fusinus claibornica – type locality for species
- †Fusoficula
- †Fusoficula angelinensis
- Fustiaria
- †Fustiaria aciculata – type locality for species
G
- Gadila
- †Gadila palmerae
- Galeocerdo
- †Galeocerdo eaglesomei
- †Galeocerdo latidens
- Galeodea
- †Galeodea dubia
- †Galeodea koureos
- †Galeodea petersoni
- †Galeodea planotecta
- Gastrocopta
- †Gastrocopta armifera
- †Gastrocopta contracta
- †Gastrocopta cristata
- †Gastrocopta pellicuda
- †Gastrocopta pellucida
- †Gastrocopta pentodon
- †Gastrocopta procera
- †Gastrocopta tappaniana
- †Gavialosuchus
- Gegania
- †Gegania antiquata
- †Gelastops
- †Genartina – type locality for genus
- †Genartina texana – type locality for species
- Geochelone
- Geomys
- †Geomys bursarius
- †Geomys minor
- †Geomys tobinensis
- †Gigantocamelus
- †Gigantocamelus spatulus
- †Gilbertina
- †Gilbertina texana
- †Glossotherium
- †Glossotherium chapadmalense
- †Glottidia
- †Glottidia antarctica – type locality for species
- Glycymeris
- †Glycymeris petropolitana
- †Glyphalini
- †Glyphalini identata
- Glyptoactis
- †Glyptoactis alticostata
- †Glyptoactis coloradonis
- †Glyptoactis crenaea
- †Glyptoactis eoa
- †Glyptoactis linguinodifera – type locality for species
- †Glyptoactis milamensis – type locality for species
- †Glyptoactis trapaquara
- †Glyptotherium
- †Glyptotoma
- †Glyptotoma conradiana
- †Glyptotoma crassiplicata
- Glyptozaria
- †Glyptozaria americanae – type locality for species
- †Gnathabelodon – only reported species reclassified new genus Blancotherium.[1]
- †Gnathabelodon buckneri – type locality for species. Later reclassified as Blancotherium buckneri[1]
- †Gomphopages
- †Gomphopages turneri
- †Gomphotherium
- †Gomphotherium gratum – type locality for species
- †Gomphotherium obscurum
- †Goniobasis
- †Goniobasis miocaenica
- Gopherus – type locality for genus
- †Gopherus canyonensis – type locality for species
- †Gopherus hexagonatus
- †Gopherus polyphemus – type locality for species
- †Granocardium
- Graptemys
- Gregariella
- †Gregariella ridgei – type locality for species
- †Gregorymys
- †Gregorymys riograndensis – type locality for species
- †Gulfoceras
- †Gulfoceras westfalli – type locality for species
- †Gustafsonia
- †Gustafsonia cognita
- Guttulina
- †Guttulina problema
- Gyraulus
H
- †Hadrianus
- †Haimesiastraea
- †Haimesiastraea conferta
- †Haplaletes
- †Haplaletes disceptatrix
- †Haploconus
- †Haploconus angustus
- Haplocytheridea
- †Haplocytheridea habropapillosa
- †Haplocytheridea lisbonensis
- †Haplocytheridea stenzeli
- †Haplohippus
- †Haplohippus texanus
- Harpa
- †Harpactocarcinus
- †Harpactocarcinus americanus
- †Harpactocarcinus rathbunnae
- †Harpagolestes
- †Harrisianella
- †Harrisianella plicifera
- Hastula
- †Hastula ampulla – type locality for species
- †Hastula houstonia
- †Hastula longifera – type locality for species
- †Hastula milamensis – type locality for species
- †Hastula sabina
- †Hastula venusta
- Haustator
- †Haustator infans
- †Haustator rina
- Hawaiia
- †Hawiia
- †Hawiia minuscula
- †Hayoceros
- †Hayoceros falkenbachi
- Helicina
- Helicodiscus
- †Helicodiscus paralellus
- †Helicodiscus parallelus
- †Helicodiscus singleyanus
- †Heliconoides
- †Heliconoides auriformis – type locality for species
- Helisoma
- Heloderma
- †Heloderma texana – type locality for species
- †Helohyus
- †Helohyus lentus – or unidentified comparable form
- †Hemiauchenia
- †Hemipsalodon
- †Hemipsalodon viejaensis – type locality for species
- †Hendryomeryx
- †Hendryomeryx defordi
- †Hendryomeryx wilsoni
- †Heptacodon
- †Heptacodon yeguaensis – type locality for species
- †Hercoglossa
- †Hercoglossa – type locality for species A informal
- †Hercoglossa gardnerae
- †Hercoglossa splendens
- †Hercoglossa ulrichi
- †Herpetotherium
- †Hesperhys – tentative report
- †Hesperiturris
- †Hesperiturris monilis – type locality for species
- †Hesperiturris nodocarinatus – type locality for species
- †Hesperoscalops
- †Hesperoscalops blancoensis
- †Hesperoscalops rexroadi
- †Hesperoscalops ruficervus
- †Hesperotestudo
- †Hesperotestudo crassiscutata – type locality for species
- †Hesperotestudo johnstoni – type locality for species
- †Hesperotestudo turgida – type locality for species
- †Hesperotestudo wilsoni
- †Hessolestes
- †Heteraletes
- †Heteraletes leotanus – or unidentified comparable form
- Heterodon
- †Heterodon nasicus – or unidentified comparable form
- †Heterodon platyrhinos – or unidentified comparable form
- †Heteromeryx
- †Heteromeryx dispar
- Hexaplex
- †Hexaplex colei
- †Hexaplex eoa – type locality for species
- †Hexaplex silvaticus
- †Hexaplex texanus – type locality for species
- †Hexaplex vanuxemi
- †Hexobelomeryx – tentative report
- †Hipparion
- †Hipparion brevidontus
- †Hipparion shirleyae
- †Hipparion tehonense
- †Hippidion
- Hippodamia
- †Hippodamia convergens – tentative report
- Hipponix
- †Hipponix pygmaeus
- †Hippotherium
- Holbrookia
- †Holmesina
- †Holmesina septentrionalis
- †Homotherium
- †Homotherium johnstoni
- †Homotherium serum
- †Hyaenodon
- †Hyaenodon crucians
- †Hyaenodon horridus – or unidentified comparable form
- †Hyaenodon montanus
- †Hyaenodon raineyi
- †Hyaenodon vetus – or unidentified comparable form
- Hyla
- †Hyla holmani – type locality for species
- †Hyla miocenica – type locality for species
- †Hylomeryx
- †Hyopsodus
- †Hyopsodus paulus
- †Hyopsodus uintensis – or unidentified comparable form
- †Hyopsodus wortmani – or unidentified comparable form
- Hyotissa
- †Hyotissa offemanae – type locality for species
- †Hyotissa offmanna
- †Hypertragulus
- †Hypertragulus heikeni – or unidentified comparable form
- †Hypohippus
- †Hypohippus affinis – type locality for species
- †Hypolagus
- †Hypolagus edensis
- †Hypolagus fontinalis
- †Hypolagus furlongi
- †Hypolagus gidleyi
- †Hypolagus regalis
- †Hypolagus ringoldensis
- †Hypolagus vetus
- †Hyrachyus
- †Hyrachyus modestus – or unidentified comparable form
- †Hyracodon
- †Hyracodon medius
- †Hyracodon petersoni
- †Hyracotherium
I
- †Icacorea
- †Icacorea prepaniculata
- Ictalurus
- †Ictiobus
- †Ignacius
- †Ignacius frugivorus
- †Indarctos
- †Infracoronia
- †Infracoronia ludoviciana
- †Inga
- †Inga laurinafolia
- †Ischnognathus
- †Ischnognathus savagei – type locality for species
- †Ischyrocyon
- †Ischyrocyon gidleyi – type locality for species
- †Ischyromys
- †Ischyromys blacki – type locality for species
- Isognomon
J
K
- †Kalobatippus
- †Kalobatippus australis
- †Kansasimys
- †Kansasimys dubius
- †Kapalmerella
- †Kapalmerella arenicola
- †Kapalmerella dumblei
- †Kapalmerella mortoni
- †Kapalmerella pleboides
- Katherinella
- †Katherinella smithvillensis
- †Katherinella texitrina
- †Katherinella trinitatis
- Kelliella
- †Kelliella aldrichi
- †Kelliella evansi
- Kellyella
- †Kellyella texana – type locality for species
- Kinosternon
- Kuphus
L
- †Lacinia
- †Lacinia alveata
- †Lacunaria
- †Lacunaria lithae
- †Laevibuccinum
- †Laevibuccinum constrictum
- †Laevibuccinum lineatum
- †Lambdoceras
- †Lambdoceras trinitiensis
- †Lambertocyon
- Lampropeltis
- †Langiopollis
- †Langiopollis eocaenica
- †Lapparia
- †Lapparia crassa
- †Lapparia dumosa
- †Lapparia elongata
- †Lapparia mooreana
- †Lapparia nuda
- †Laredochoerus – type locality for genus
- †Laredochoerus edwardsi – type locality for species
- †Laredomys
- †Laredomys riograndensis – type locality for species
- Lasionycteris
- Lasiurus
- Latirus
- †Latirus humilior
- †Latirus moorei
- †Latirus ostrarupis
- †Latirus sexcostatus
- †Latirus stephensoni
- †Latirus traceyi – type locality for species
- †Latrius
- †Latrius traceyi – type locality for species
- †Ledina
- †Ledina smirna
- †Ledina turgeo – type locality for species
- †Leea
- Lepisosteus
- †Lepisosteus spatula – or unidentified comparable form
- Lepomis
- †Lepomis cyanellus – or unidentified comparable form
- †Leptarctus
- †Leptarctus supremus – type locality for species
- †Leptictis
- †Leptictis douglassi – type locality for species
- †Leptictis wilsoni – type locality for species
- †Leptocyon
- †Leptoreodon
- †Leptoreodon edwardsi
- †Leptoreodon leptolophus
- †Leptoreodon major
- †Leptoreodon marshi
- †Leptoreodon pusillus
- †Leptosurcula
- †Leptosurcula beadata
- †Leptosurcula carinata – type locality for species
- †Leptotomus
- Lepus
- †Levifusus
- †Levifusus dalei – tentative report
- †Levifusus hubbardi
- †Levifusus identus
- †Levifusus irrasus
- †Levifusus lithae
- †Levifusus mortoniopsis
- †Levifusus pagodiformis
- †Levifusus serrae – type locality for species
- †Levifusus supraplanus
- †Levifusus trabeatus
- Limacina
- †Limacina stenzeli – type locality for species
- †Limacina taylori
- Limaria
- †Limaria petropolitana
- †Limaria smithvillensis
- †Limnenetes
- †Limnenetes platyceps – or unidentified comparable form
- Limopsis
- †Limopsis quihi
- †Limopsis radiata
- †Linthia
- †Linthia alabamensis
- †Lirodiscus
- †Lirodiscus jacksonensis
- †Lirodiscus smithvillensis
- †Lirofusus
- †Lirofusus subtenuis
- Lithophaga
- †Lithophysema
- †Lithophysema grande
- Litiopa
- †Litiopa texana – type locality for species
- †Litorhadia
- †Litorhadia aldrichiana
- †Litorhadia bastropensis
- †Litorhadia compsa
- †Litorhadia evanescentior
- †Litorhadia milamensis – type locality for species
- †Litorhadia petropolitana
- †Litorhadia undulata – type locality for species
- †Litorhadia valdefragilis – type locality for species
- †Litoyoderimys
- †Litoyoderimys lustrorum
- Littorina
- †Littorina eofasciata – type locality for species
- †Longirostromeryx
- †Longirostromeryx clarendonensis – type locality for species
- †Longirostromeryx wellsi
- Lovenia
- †Lovenia alabamensis
- Loxoconcha
- †Loxoconcha delicata
- Lucina
- †Lucina subcurta
- Lucinisca
- Lunatia – report made of unidentified related form or using admittedly obsolete nomenclature
- †Lunatia moorei
- Lunularia – tentative report
- Lunulites
- †Lunulites bouei
- †Lunulites ligulata
- †Lunulites truncata
- †Lygodiumsporites
- †Lygodiumsporites adriennis
- Lymnaea
- †Lymnaea caperata
- †Lymnaea dalli
- †Lymnaea modicella
- †Lymnaea obrussa
- Lynx
- †Lynx proterolyncis
- †Lynx rufus
- Lyria
- †Lyrosurcula
- †Lyrosurcula gibbera
- †Lyrosurcula vaughani
- Lytta
M
- †Machairodus
- †Machairodus catocopis
- Macrocallista
- †Macrocallista triangulata – type locality for species
- †Macrotarsius
- †Macrotarsius jepseni – or unidentified comparable form
- Mactra
- Madracis
- †Madracis gregorioi
- †Madracis herricki – type locality for species
- †Madracis johnsoni – type locality for species
- Madrepora
- †Madrepora natchitochensis
- Magnolia
- †Magnolia leei
- †Mahgarita
- †Mahgarita stevensi – type locality for species
- †Malaquiferus – tentative report
- †Mammut
- †Mammuthus
- †Mammuthus columbi
- †Mammuthus hayi
- Marginella
- †Marginella carnea
- †Marginella constrictoides
- Marmota
- †Marshochoerus
- †Marshochoerus socialis
- Martes
- Martesia
- †Martesia laredoensis
- †Martesia texana
- †Martinogale
- †Martinogale chisoensis
- †Mathilda
- †Mathilda claibornensis
- †Mathilda cribraea – type locality for species
- †Mathilda iugum – type locality for species
- †Mathilda retisculpta
- †Mauricia
- †Mauricia houstonia
- †Mauricia leonia
- †Mazzalina
- †Mazzalina conica – type locality for species
- †Mazzalina plena
- †Megalictis – tentative report
- †Megalonyx
- †Megalonyx jeffersonii – or unidentified comparable form
- †Megalonyx leptostomus
- †Megatherium
- †Megatherium mirabite
- †Megatylopus
- †Megatylopus matthewi – type locality for species
- †Megatylopus primaevus
- Melanella
- †Melanella extremis – or unidentified related form
- †Melanella minutissima – type locality for species
- †Melanella notata – or unidentified comparable form
- †Melanella wheeleri
- †Meliakrouniomys
- †Meliakrouniomys wilsoni – type locality for species
- Meliosma[2]
- †Meliosma berryi – type locality for species[2]
- †Menetus
- †Menetus dilataus
- †Menoceras
- †Menops
- †Menops bakeri
- Mephitis
- Meretrix
- †Meretrix nuttelliopsis
- †Merychippus
- †Merychippus gunteri
- †Merychippus insignis – or unidentified comparable form
- †Merychippus sejunctus
- †Merychippus shirleyae
- †Merychyus
- †Merychyus calaminthus – or unidentified comparable form
- †Merychyus novomexicanus
- †Merycoidodon
- †Merycoidodon culbertsoni
- †Merycoidodon presidioensis
- Mesalia
- †Mesalia alabamiensis
- †Mesalia allentonensis
- †Mesalia biplicata
- †Mesalia claibornensis
- †Mesalia mavericki
- †Mescalerolemur – type locality for genus
- †Mescalerolemur horneri – type locality for species
- Mesodesma
- †Mesodesma singleyi
- †Mesodma
- †Mesodma pygmaea – or unidentified comparable form
- †Mesodma thompsoni
- †Mesohippus
- †Mesohippus texanus
- †Mesomphix
- †Metalopex
- †Metalopex bakeri – type locality for species
- †Metamynodon
- †Metamynodon chadronensis
- †Metamynodon mckinneyi – type locality for species
- Metula
- †Metula brazosensis
- †Metula elongatoides – type locality for species
- †Metula gracilis
- †Metula reticulata – type locality for species
- †Michela
- †Michela trabeatoides – type locality for species
- †Michenia
- †Michenia exilis – type locality for species
- Microdrillia
- †Microdrillia aldrichella
- †Microdrillia aldrichiella
- †Microdrillia elongatula
- †Microdrillia harrisi
- †Microdrillia infans
- †Microdrillia laeviplicata
- †Microdrillia parthenoides
- †Microdrillia robustula – or unidentified related form
- †Microdrillia rostratula
- †Microdrillia solidula
- †Microeutypomys
- †Microeutypomys karenae – type locality for species
- †Microparamys
- †Microparamys minutus
- †Microparamys perfossus
- Micropterus
- †Microsurcula
- †Microsurcula iuventae – type locality for species
- †Microsyops
- †Microsyops annectens
- †Microtomarctus
- †Microtomarctus conferta
- Microtus
- †Microtus australis
- †Microtus llanensis
- †Microtus meadensis
- †Microtus mexicanus
- †Microtus paroperarius
- †Microtus pennsylvanicus
- †Microtus pinetorum
- Micrurus
- Mictomys
- †Mictomys meltoni
- Miltha
- †Miltha albaripus
- †Mimetodon
- †Mimetodon silberlingi
- †Minippus
- †Minippus index
- †Mioclaenus
- †Mioclaenus opisthacus
- †Miocoluber – type locality for genus
- †Miocoluber dalquesti – type locality for species
- †Miocyon
- †Miocyon scotti – or unidentified comparable form
- †Miocyon vallisrubrae
- †Miohippus
- †Miolabis
- †Mionictis
- †Miracinonyx
- †Miracinonyx inexpectatus – or unidentified comparable form
- †Miracinonyx studeri
- Mitrella
- †Mitrella bastropensis
- †Mitrella nuttalli – type locality for species
- †Mitrella texana – type locality for species
- †Mixodectes
- †Mixodectes malaris
- Mnestia
- †Mnestia confusa – type locality for species
- †Mnestia dekayi
- †Mnestia ovata – type locality for species
- †Mnestia rotunda – type locality for species
- Modiolus – tentative report
- †Monoptygma
- †Monoptygma crassiplicum
- Montastraea
- †Montastraea intermedia
- †Moropus
- †Moropus oregonensis – or unidentified comparable form
- †Morrillia
- †Morrillia barbouri
- Murex
- †Murex fusates
- †Murex mansfieldi
- Mustela
- †Mustela rexroadensis
- Myctophum
- †Myctophum americanum – type locality for species
- Myliobatis
- †Mylohyus
- Myotis
- Myrtea
- †Myrtea curta
- †Myrtea mesakta
- †Myrtea uhleri – or unidentified comparable form
- Mytilus
- †Mytonomys
- †Mytonomys coelumensis
- †Mytonomys robustus
- Myzinum – or unidentified comparable form
N
- †Nannippus
- †Nannippus aztecus
- †Nannippus beckensis – type locality for species
- †Nannippus lenticularis
- †Nannippus peninsulatus
- †Nannodectes
- †Nannodectes gidleyi – or unidentified related form
- †Nanotragulus
- †Nanotragulus ordinatus
- Narona
- †Narona greggi
- Nassarius
- †Nassarius emoryi
- †Nassarius exilis
- †Nassarius nodosa – type locality for species
- †Nassarius seguinensis – type locality for species
- Nasua
- †Nasua pronarica – type locality for species
- Natica
- †Natica aperta
- †Natica brevisulcata – type locality for species
- †Natica clarkeana
- †Natica moffitti – type locality for species
- †Natica moorei
- †Natica permunda
- †Natica perspecta
- †Natica reversa
- †Natica saffordia
- Naticarius
- †Naticarius reversa
- †Naticarius semilunata
- Natrix
- †Navajovius
- †Navajovius kohlhaasae
- Nectandra
- †Nectandra lancifolia
- †Nekrolagus
- †Nekrolagus progressus
- Nemocardium
- †Nemocardium actium
- †Nemocardium gambrinum
- †Nemocardium quihi
- †Nemodon
- †Nemodon eufaulensis
- †Neochoerus – type locality for genus
- Neofiber
- †Neofiber leonardi
- Neogale
- †Neohipparion
- †Neohipparion affine
- †Neohipparion eurystyle – type locality for species
- †Neohipparion leptode
- †Neonatrix
- †Neonatrix elongata
- †Neonatrix infera – type locality for species
- Neotamias
- Neotoma
- †Neotoma albigula
- †Neotoma floridana
- †Neotoma fossilis – or unidentified comparable form
- †Neotoma mexicana
- †Neotoma micropus
- †Neotoma minutus
- †Neotoma quadriplicata
- †Neozanthopsis
- †Neozanthopsis americanus
- Neptunea – report made of unidentified related form or using admittedly obsolete nomenclature
- Nerodia
- †Nerterogeomys
- †Nerterogeomys paenebursarius
- Neverita
- †Nexuotapirus
- †Nexuotapirus marslandensis
- †Nimravides
- †Nimravides hibbardi – type locality for species
- †Nimravides thinobates – or unidentified comparable form
- Niptus
- †Niptus abstrusus
- †Nonomys
- †Nonomys simplicidens
- Norrisia
- †Norrisia micromphala
- †Notharctus
- †Nothokemas
- †Nothokemas floridanus
- †Nothokemas hidalgensis – type locality for species
- †Nothotylopus
- †Nothotylopus camptognathus
- †Nothrotheriops
- †Nothrotherium
- †Nothrotherium shastense
- Notiosorex
- †Notiosorex crawfordi
- †Notiosorex jacksoni
- †Notiotitanops
- †Notiotitanops mississippiensis
- †Notolagus
- †Notolagus lepusculus
- Notophthalmus
- †Notophthalmus slaughteri – type locality for species
- Nucula
- †Nucula cochlear – type locality for species
- †Nucula magnifica
- †Nucula mauricensis
- †Nucula mediavia
- †Nucula smithvillensis
- Nuculana
- †Nuculana aldrichiana
- †Nuculana corpulentoides
- †Nuculana demissa – type locality for species
- †Nuculana eoa
- †Nuculana jewetti
- †Nuculana milamensis
- †Nuculana ovula
- †Nuculana saffordana
- †Nuculana smithvillensis – or unidentified related form
- †Nuculana travisana – or unidentified comparable form
- †Nuculana trivitate
- †Nuculana turgeo – type locality for species
- †Nudivagus
- †Nuulana
- †Nuulana turgeo – type locality for species
- Nysius – tentative report
O
- Oculina
- †Oculina singleyi – type locality for species
- Odocoileus
- Odontaspis
- †Odontaspis exilis – type locality for species
- †Odontopolys
- †Odontopolys compsorhytis
- Odostomia
- †Odostomia ova – type locality for species
- †Odostomia trapaquara
- Ogmodontomys
- †Ogmodontomys poaphagus
- †Ogmophis
- †Ogmophis miocompactus
- Olivella
- †Olivella mediavia
- †Omomys
- †Omomys carteri
- †Omomys lloydi
- Ondatra
- †Ondatra annectens
- †Ondatra idahoensis – or unidentified comparable form
- †Ondatra zibethicus
- Onychomys
- †Onychomys gidleyi
- †Onychomys hollisteri
- †Onychomys leucogaster
- †Onychomys pedroensis
- †Onychomys torridus
- Opalia
- †Opalia cooperi – type locality for species
- Opheodrys
- Ophisaurus
- †Oreodaphne
- †Oreodaphne obtusifolia
- †Oreodaphne perseaformis
- †Oreodaphne pseudoguianensis
- †Oromeryx
- †Orthosurcula
- †Orthosurcula adeona
- †Orthosurcula francescae
- †Orthosurcula indenta
- †Orthosurcula langdoni – or unidentified comparable form
- †Orthosurcula longipersa
- †Orthosurcula persa
- †Orthosurcula phoenicea
- Orthoyoldia
- †Orthoyoldia petropolitana
- †Orthoyoldia psammotaea
- Oryzomys
- †Osbornoceros – tentative report
- Ostrea
- †Ostrea crenulimarginata
- †Ostrea duvali
- †Ostrea frithi
- †Ostrea kochae
- †Ostrea multilirata
- †Ostrea normalis
- †Ostrea pulaskensis
- †Ostrea semmesi
- †Ostrea sinuosa
- Otionella
- †Otionella tuberosa
- †Otostomia
- †Otostomia melanella
- †Otostomia trapaquara
- †Ourayia
- †Ourayia hopsoni
- †Ourayia uintensis
- Ovis
- †Oxydactylus
- †Oxydactylus benedentatus – type locality for species
P
- †Pachecoa
- †Pachecoa adamsi
- †Pachecoa concentrica – type locality for species
- †Pachecoa decisa
- †Pachecoa microcancellata
- †Pachecoa ovalis
- †Pachecoa pulchra
- †Pachecoa sabinica
- †Pachecoa smithvillensis
- †Paenemarmota
- †Paenemarmota barbouri
- †Palaechthon
- †Palaechthon woodi – or unidentified comparable form
- †Palaeictops – tentative report
- †Palaeolama
- †Palaeophis
- †Palaeorhaphis
- †Palaeorhaphis palaeocenica – type locality for species
- †Paleoheterodon
- †Paleoheterodon tiheni
- †Paleotomus
- †Paleotomus senior
- Panopea
- Panthera
- †Papillina
- †Papillina dumosa
- †Paracryptotis
- †Paracryptotis rex
- Paracyathus
- †Paracyathus alternatus
- †Paracyathus bastropensis – type locality for species
- †Paraenhydrocyon
- †Paraenhydrocyon wallovianus
- †Parahippus
- †Parahippus leonensis – type locality for species
- †Parahyus
- †Parahyus vagus
- †Paralbula
- †Paralbula marylandica
- †Paramerychyus
- †Paramerychyus harrisonensis
- †Paramylodon
- †Paramys
- †Paramys delicatior – or unidentified comparable form
- †Paramys excavatus
- †Paramys leptodus
- †Paraoreomunea
- †Parapavo
- †Parapavo californicus
- †Parapotos – type locality for genus
- †Parapotos tedfordi – type locality for species
- †Paratoceras
- †Paratoceras macadamsi – type locality for species
- †Paratoceras wardi – type locality for species
- †Paratomarctus
- †Paratomarctus euthos
- †Paratomarctus temerarius
- Parbatmya – type locality for genus
- †Parbatmya brazosensis
- †Parbatmya fornicata – type locality for species
- †Parectypodus
- †Pareumys
- †Pareumys boskeyi
- †Paronychomys – tentative report
- †Parvitragulus
- †Parvitragulus priscus
- †Parvobalanus – type locality for genus
- †Parvobalanus gracilis – type locality for species
- †Patulaxis
- †Patulaxis scrobiculata
- †Pauromys
- †Pauromys simplex – type locality for species
- †Pauromys texensis
- †Pediomeryx
- †Pediomeryx hemphillensis – type locality for species
- †Peltosaurus – tentative report
- †Penetrigonias
- †Penetrigonias dakotensis
- †Peraceras
- †Peraceras hessei
- †Peraceras superciliosum
- †Peradectes – tentative report
- †Peratherium
- †Peratherium comstocki
- †Peratherium marsupium
- Periploma
- †Periploma collardi
- †Periploma howei
- †Periptychus
- †Periptychus carinidens
- Perognathus
- †Perognathus carpenteri – type locality for species
- †Perognathus flavus
- †Perognathus pearlettensis
- †Perognathus rexroadensis – or unidentified comparable form
- Peromyscus
- †Peromyscus boylii
- †Peromyscus cragini
- †Peromyscus difficilis
- †Peromyscus eremicus
- †Peromyscus gossypinus
- †Peromyscus kansasensis
- †Peromyscus leucopus
- †Peromyscus maniculatus
- †Peromyscus pectoralis
- †Peromyscus progressus – or unidentified comparable form
- †Petauristodon
- †Petauristodon jamesi
- †Petauristodon minimus – or unidentified comparable form
- Petrophyllia
- †Petrophyllia singleyi
- †Pewelagus
- †Pewelagus dawsonae
- Phacoides
- Phaedon – or unidentified comparable form
- Phalium
- †Phalium brevicostatum
- †Phalium reklawensis – type locality for species
- †Phelopteria
- †Phenacodus
- †Phenacodus bisonensis
- †Phenacodus grangeri
- †Phenacodus matthewi
- Philine
- †Phlaocyon
- Pholadomya
- †Pholadomya harrisi
- †Pholadomya leonensis
- †Pholadomya petropolitana
- Pholas
- Phos
- †Phos sagenum
- †Phos texanum
- Phrynosoma
- Phyllodus
- Physa
- †Physa anatina
- †Physa gyrina
- †Physocypria
- †Physocypria pustulosa
- Pinna – tentative report
- Pisidium
- Pitar
- †Pitar angelinae
- †Pitar biboraensis
- †Pitar gazleyensis
- †Pitar hawtofi
- †Pitar juliae
- †Pitar kempae
- †Pitar nuttalliopsis
- †Pitar petropolitanus
- †Pitar pteleina
- †Pitar pteleinus
- †Pitar ripleyanus
- †Pitar texacola
- †Pitar texibrazus
- †Pitar tornadonis
- †Pitar trigoniata
- †Pitar turneri – type locality for species
- Pituophis
- †Plagiarca
- †Plagiarca rhomboidella
- †Plagiarca vaughani
- Plagiocardium – or unidentified comparable form
- Planorbis
- †Planorbis andersoni
- †Planorbula
- †Platygonus
- †Platygonus bicalcaratus
- †Platygonus compressus
- †Platygonus pollenae
- †Platygonus vetus
- Platytrochus
- †Platytrochus primaevus – type locality for species
- †Platytrochus stokesi
- †Pleiolama
- †Pleiolama vera
- †Plesiocolopirus
- †Plesiocolopirus hancocki – or unidentified comparable form
- †Plesiogulo
- †Plesiogulo marshalli
- †Plesiolestes
- †Plesiolestes nacimienti
- †Plesiosminthus
- †Pleuofusia – tentative report
- †Pleuofusia huppertzi – type locality for species
- Pleurocera
- †Pleurocera acutum
- Pleurofusia
- †Pleurofusia huppertzi
- †Pleurofusia longirostropis
- †Pleurofusia prosseri
- †Pleurolicus
- †Pleurolicus sellardsi
- †Pleuroliria
- Pleuromeris
- †Pleuromeris leonensis
- Pleuroploca
- †Pleuroploca plummeri – or unidentified related form
- †Pleurostoma
- †Pleurostoma adolescens
- Pleurotomella
- †Pleurotomella veatchi
- †Pleurotomella whitfieldi
- Plicatula
- †Plicatula filamentosa
- †Plicatula pustula – type locality for species
- Pliciscala
- †Pliciscala albitesta
- †Plinthicus
- †Pliohippus
- †Pliohippus fossulatus
- †Pliohippus nobilis
- †Pliohippus pernix
- †Pliohippus spectans – tentative report
- †Pliometanastes
- †Pliometanastes protistus – or unidentified comparable form
- †Pliosaccomys
- †Pliosaccomys higginsensis
- †Pliotaxidea
- †Pliotaxidea nevadensis – or unidentified comparable form
- †Plotophysops – tentative report
- †Plotophysops angularis – type locality for species
- †Poabromylus
- †Poabromylus kayi
- Podomys
- †Podomys oklahomensis
- †Poebrotherium
- †Poebrotherium chadronense – type locality for species
- †Poebrotherium franki – type locality for species
- †Polidevcia
- †Polidevcia magna
- Polinices
- †Polinices aratus
- †Polinices eminulus
- †Polinices harrisii
- †Polinices julianna
- †Polinices onustus – type locality for species
- Polydora
- Polygyra
- †Polygyra texasiana
- Polymorphina
- †Polymorphina gibba
- †Polymorphina regularis
- Polyschides
- †Polyschides margarita
- Porites
- †Porites douvillei
- Poromya – or unidentified related form
- †Postalia
- †Postalia americana – type locality for species
- †Potamides
- †Potamides matsoni
- †Pratilepus
- †Pratilepus kansasensis
- †Preophidion – type locality for genus
- †Preophidion petropolis
- †Preophidion stintoni – type locality for species
- Prionocidaris
- †Prionocidaris cojimarensis
- †Priscocamelus
- †Priscocamelus wilsoni
- †Priscoficus
- †Priscoficus juvenis
- †Pristichampsus
- Pristis
- †Probassariscus
- †Problastomeryx
- †Problastomeryx primus
- †Procamelus
- †Procastoroides
- †Procastoroides sweeti
- †Procynodictis
- †Procynodictis vulpiceps – or unidentified comparable form
- Procyon
- †Procyon lotor
- †Procyon rexroadensis
- †Prodipodomys
- †Prodipodomys centralis
- †Progeomys
- †Progeomys sulcatus – type locality for species
- †Prohesperocyon
- †Proheteromys
- †Proheteromys sabinensis – type locality for species
- †Proheteromys toledoensis – type locality for species
- †Prolapsus
- †Prolapsus junctionis – type locality for species
- †Prolapsus sibilatoris – type locality for species
- †Promathildia
- †Promathildia parvilis – or unidentified comparable form
- †Promathildia parvula – or unidentified comparable form
- Promenetus
- †Promioclaenus
- †Promioclaenus acolytus
- †Proneofiber
- †Proneofiber guildayi – type locality for species
- Propeamussium
- †Propeamussium alabamense
- †Prosigmodon
- †Prosimnia
- †Prosimnia naviculae
- †Prosthennops
- †Prosthennops serus
- †Prosthennops xiphodonticus
- †Prosynthetoceras
- †Prosynthetoceras francisi – type locality for species
- †Prosynthetoceras orthrionanus – type locality for species
- †Prosynthetoceras texanus – type locality for species
- †Proterixoides
- †Prothryptacodon
- †Protictis
- †Protitanotherium
- †Protitanotherium emarginatum
- †Protoceras – tentative report
- †Protocitta
- †Protocitta ajax – type locality for species
- †Protohippus
- †Protohippus gidleyi
- †Protohippus perditus
- †Protohippus supremus – type locality for species
- †Protohippus vetus
- †Protolabis
- †Protoreodon
- †Protoreodon parvus
- †Protoreodon petersoni
- †Protoreodon pumilus
- †Protosciurus
- †Protoscutella
- †Protoscutella mississippiensis
- †Protoselene – or unidentified comparable form
- †Protospermophilus
- †Protospermophilus quatalensis
- †Protosurcula
- †Protosurcula aurora – type locality for species
- †Protosurcula gabbii
- †Protosurcula tenuirostris
- †Protylopus – tentative report
- Pseudacris
- †Pseudacris clarki
- †Pseudacris ocularis
- †Pseudacris streckeri
- †Pseudaelurus – tentative report
- †Pseudhipparion
- †Pseudhipparion curtivallum
- †Pseudhipparion hessei – type locality for species
- †Pseudhipparion skinneri
- †Pseudoceras
- †Pseudoceras skinneri
- Pseudochama
- †Pseudocylindrodon
- †Pseudocylindrodon neglectus
- †Pseudocylindrodon pintoensis – or unidentified related form
- †Pseudocylindrodon texanus – type locality for species
- Pseudoliva
- †Pseudoliva ostrarupis
- †Pseudoliva santander
- †Pseudoliva scalina
- †Pseudoliva vetusta
- Pseudomalaxis
- †Pseudomalaxis acuta – type locality for species
- †Pseudomalaxis plummerae
- †Pseudomalaxis reklawensis – type locality for species
- †Pseudomalaxis texana
- †Pseudometula – type locality for genus
- †Pseudometula gradus – type locality for species
- †Pseudoparablastomeryx
- †Pseudoparablastomeryx scotti
- †Pseudoprotoceras
- †Pseudoprotoceras minor
- †Pseudotheridomys
- †Pseudotomus
- †Pseudotomus johanniculi
- †Pseudotomus petersoni – or unidentified comparable form
- †Psittacotherium
- Pteria
- †Pteria deusseni
- †Pteria limula
- †Pteria petropolitana
- Pteris
- †Pteris dentata
- †Pteropsella
- †Pteropsella lapidosa
- †Pteropsella praelapidosa
- †Pterosphenus
- †Pterosphenus schucherti
- Pterothrissus
- †Pterothrissus truncatus
- Pterynotus
- †Pterynotus sabinola
- †Pterynotus stenzeli – type locality for species
- †Ptilodus
- Ptinus
- Puma
- Pupilla
- Pupoides
- Pycnodonte
- †Pycnodonte sylvaerupis
- †Pylodictis
- Pyramidella
- †Pyramidella bastropensis
- †Pyramidella dalli
- †Pyramidella filamentosa – type locality for species
- †Pyramidella perexilis
- †Pyramidella pirum – type locality for species
- †Pyramidella propeacicula
- †Pyramidella pseudopymaea
- †Pyramidella tundrae – type locality for species
- †Pyramimitra
- †Pyramimitra eocenica – type locality for species
- †Pyramimitra terebraeformis
- †Pyricythereis
- †Pyricythereis alabamensis
- †Pyricythereis delicata – type locality for species
- †Pyricythereis foveovalva – type locality for species
- †Pyricythereis seminuda – type locality for species
- †Pyricythereis smithvillensis – type locality for species
- †Pyricythereis subtriangularis – type locality for species
Q
- †Quadratomus
- †Quadratomus gigans
- †Quadrula
- †Quadrula frustulosa
- †Quadrula speciosa
- Quinqueloculina
- †Quinqueloculina claiborniana
- †Quinqueloculina seminulum
- †Quinqueloculina vulgaris
R
- Raja
- †Raja texana – type locality for species
- †Rana
- †Rana catesbiana – lapsus calami of Rana catesbeiana
- †Rana pipiens
- Ranularia
- †Ranularia hula
- Raphitoma
- †Raphitoma bastropensis – type locality for species
- †Raphitoma bellula
- †Raphitoma fannae
- †Raphitoma georgei – type locality for species
- †Raphitoma iuventae – type locality for species
- †Raphitoma rebecella
- †Raphitoma sabinia
- †Raphitoma specus
- Reithrodontomys
- †Reithrodontomys fulvescens
- †Reithrodontomys megalotis
- †Reithrodontomys montanus
- †Reithrodontomys moorei
- †Reithrodontomys rexroadensis – or unidentified comparable form
- †Retinella
- †Retinella indentata
- Retusa
- †Retusa adamsi
- †Retusa adamski – or unidentified comparable form
- †Retusa emoryi
- †Retusa galba
- †Retusa jacksonensis
- †Retusa kellogii
- †Retusa notata – type locality for species
- †Retusa sylvaerupis
- †Rhabdopitaria
- †Rhabdopitaria astartoides
- †Rhabdopitaria pricei
- †Rhabdopitaria texangelina
- Rhinobatos
- Rhinocheilus
- Rhinoptera
- Rhizorus
- †Rhizorus conradianus
- †Rhizorus loisae
- †Rhizorus minutissimus
- †Rhizorus smithvillensis
- †Rhizorus volutatus
- †Rhynchotherium – tentative report
- Rimella
- †Rimella laqueatus
- †Rimella texanum
- Ringicula
- †Ringicula alabamensis
- †Ringicula butleriana – tentative report
- †Ringicula dubia
- †Ringicula trapaquara
- †Rooneyia – type locality for genus
- †Rooneyia viejaensis – type locality for species
- †Rotalia
- †Rotalia beccarii
- †Rotularia
- †Rudiscala
S
- Saccella
- †Saccella atakta
- Salvadora
- †Salvadora paleolineata
- †Sapindus
- †Sapindus linearifolius
- Sassia
- †Sassia nucleoides – type locality for species
- †Sassia septemdentata
- †Sassia septendentata
- †Saxolucina
- †Saxolucina claytonia
- Scalina
- †Scalina dolosa
- †Scalina trapaquara
- Scalopus
- Scaphander
- Scaphella
- †Scaphella newcombiana
- †Scaphella showalteri
- Scaphiopus
- †Scaphites
- Sceloporus
- †Scenopagus
- †Scenopagus edenensis – or unidentified comparable form
- †Schedocardia
- †Schedocardia hatchetigbeensis
- †Schizorthosecos
- †Schizorthosecos interstitia
- Sciurus
- Scobinella
- †Scobinella reticulatoides
- †Selaginella
- Selenophorus – or unidentified comparable form
- Semele
- †Semele australina
- †Semiactaeon
- †Semiactaeon texanum – type locality for species
- †Septastrea
- †Septastrea kerioides – type locality for species
- Serpulorbis
- †Serpulorbis gonioides
- †Serpulorbis multiclavus – type locality for species
- Sigatica
- †Sigatica harrisi
- Sigmodon
- †Sigmodon curtisi – or unidentified comparable form
- †Sigmodon hispidus
- †Sigmodon hudspethensis – type locality for species
- †Sigmodon minor
- †Signata – type locality for genus
- †Signata nicoli – type locality for species
- †Signata stenzeli – type locality for species
- Siliqua
- †Siliqua simondsi
- †Simidectes
- †Simidectes magnus
- †Similisciurus
- †Similisciurus maxwelli – type locality for species
- †Simimys – or unidentified comparable form
- Simnia
- †Simnia texana
- Sincola
- †Sincola galvestonensis
- Sinodia
- †Sinodia eocaenica
- †Sinopa
- †Sinopa major
- Sinum
- †Sinum arctatum
- †Sinum bilix
- †Sinum declive
- †Sinum fiski – type locality for species
- †Sinum inconstans
- †Sinum moveum – type locality for species
- †Sinum taylori – type locality for species
- Siphonalia
- †Siphonalia newtonensis
- †Siphonalia plummeri
- Siren
- †Siren miotexana – type locality for species
- †Skaptotion
- †Skaptotion reklawensis – type locality for species
- Skena
- †Skena pignus
- Skenea
- †Skenea dalli
- †Smilodon
- †Soergelia
- Solariella
- †Solariella aldrichiana
- †Solariella tricostata
- Solariorbis
- †Solariorbis conicus – type locality for species
- †Solariorbis discoides – type locality for species
- †Solariorbis parsnaticoide – type locality for species
- †Solariorbis parsnaticoides – type locality for species
- †Solariorbis proius
- †Solariorbis velarum – type locality for species
- †Solastella – type locality for genus
- †Solastella cookei – type locality for species
- Solemya
- †Solemya bilix
- Solen
- †Solen pendletonensis
- Solena
- †Solena shirleyi – type locality for species
- †Sophora
- †Sophora wilcoxiana
- Sorex
- †Sorex cinereus
- †Sorex cudahyensis
- †Sorex lacustris
- †Sorex megapalustris
- †Sorex palustris
- †Sorex pratensis
- †Sorex taylori
- †Sorex vagrans
- Spermophilus
- †Spermophilus elegans – or unidentified comparable form
- †Spermophilus finlayensis
- †Spermophilus howelli – or unidentified comparable form
- †Spermophilus mcgheei
- †Spermophilus spilosoma
- †Spermophilus tridecemlineatus
- †Spermophilus variegatus
- Sphaerium
- †Sphaerium striatinum
- †Sphyreana
- Spilogale
- †Spilogale microdens
- †Spilogale putorius
- †Spilogale rexroadi
- †Spinizoncolpites
- †Spinizoncolpites prominatus
- Spirorbis
- †Spirorbis leptostoma
- Spirotropis
- †Spirotropis claibornica – type locality for species
- Spisula
- †Spisula parilis
- Sportella – tentative report
- †Sportella divaricata
- Stagnicola
- †Stagnicola bulimoides
- †Stagnicola exilis
- †Stagnicola reflexa
- †Stegomastodon
- †Steneofiber
- †Steneofiber barbouri – or unidentified comparable form
- †Steneofiber fossor
- †Steneofiber hesperus
- †Stenomylus
- †Stenotrema
- †Stenotrema leai
- †Stenotrema monodon
- Sternotherus
- Sthenictis
- †Stintonia
- †Stintonia brazosia
- †Stockoceros – or unidentified comparable form
- Storeria
- †Strepsidura
- †Strepsidura contorea
- †Strepsidura ficus
- †Strepsidura harrisi – type locality for species
- Striarca
- †Striarca stearnsii
- †Striarca webbervillensis
- †Striatolamia
- †Striatolamia macrota
- Strobilops
- †Strobilops texasiana
- †Stygimys
- †Stygimys vastus – type locality for species
- †Stylinodon
- Succinea
- †Succinea avara
- †Sulcocypraea
- †Sulcocypraea kennedyi
- Surculites
- †Surculites cabezai
- †Surculites lapillus – type locality for species
- †Surculoma
- †Surculoma dumblei
- †Surculoma falsabenes
- †Surculoma imbricata – type locality for species
- †Surculoma kellogii
- †Surculoma leoncola
- †Surculoma penrosei
- †Sycostoma
- †Sycostoma texana – type locality for species
- Sylvilagus
- †Sylvilagus audubonii
- †Sylvilagus floridanus
- †Sylvilagus hibbardi
- †Symmetrodontomys
- †Symmetrodontomys beckensis
- †Symmetrodontomys simplicidens
- †Symplocos[2]
- †Symplocos amoena – type locality for species[2]
- †Symplocos fritschii – type locality for species[2]
- †Symplocos martinettoi – type locality for species[2]
- †Symplocos platycarpa – type locality for species[2]
- †Symplocos rothwelii – type locality for species[2]
- †Symplocos trinitiensis – type locality for species[2]
- †Symplocos trisulcata – type locality for species[2]
- Synaptomys
- †Synaptomys australis – or unidentified comparable form
- †Synaptomys cooperi
- †Syncyclonema
- †Synthetoceras
- †Synthetoceras tricornatus – type locality for species
- Syrphus – or unidentified comparable form
- Syrrhophus
- †Syrrhophus marnocki
T
- Tantilla
- Tanytarsus – tentative report
- Tapirus
- Taxidea
- Teinostoma
- †Teinostoma barryi – type locality for species
- †Teinostoma eoa
- †Teinostoma texanum
- †Teleoceras
- †Teleoceras fossiger
- †Teleoceras guymonense
- †Teleoceras hicksi
- †Teleoceras major
- †Teleoceras medicornutum
- †Teleoceras meridianum
- Tellina
- †Tellina cherokeensis
- †Tellina leana
- †Tellina makelloides
- †Tellina petropolitana
- †Tellina quihi
- †Tellina santander
- †Tellina semipapyra – or unidentified comparable form
- †Tellina semipapyria
- †Tellina tallicheti
- †Tellina trumani
- Tenagodus
- †Tenagodus texanus
- †Tenuimactra – type locality for genus
- †Tenuimactra hodgkinsoni – type locality for species
- †Tephrocyon
- Terebellum
- Terebra
- †Terebra texagyra
- †Terebrifusus
- †Terebrifusus amoenus
- †Terebrifusus multiplicatus
- Teredo
- †Teredo maverickensis
- †Teredo ringens
- Terminalia
- †Terminalia hilgardiana
- †Ternstroemites
- †Ternstroemites preclaibornensis
- Terrapene
- Testudo
- †Tetrameryx
- †Tetrameryx knoxensis
- †Tetrameryx shuleri
- †Texasophis – type locality for genus
- †Texasophis fossilis – type locality for species
- †Texmelanatria
- †Texmelanatria angeloi
- †Texmelanatria texana
- †Texoceros
- †Texoceros altidens – type locality for species
- †Texodon
- †Texodon meridianus – type locality for species
- †Texomys
- †Texomys ritchiei – type locality for species
- Thamnophis
- Theodoxus
- †Theodoxus domicilium – type locality for species
- †Thinobadistes
- †Thinobadistes wetzeli
- †Thisbemys
- †Thisbemys corrugatus
- Thomomys
- †Thomomys bottae
- †Thomomys talpoides – or unidentified comparable form
- †Tibiella – report made of unidentified related form or using admittedly obsolete nomenclature
- †Tibiella texana
- †Tiburnus
- †Tiburnus texanus
- †Ticholeptus
- †Ticholeptus rileyi – type locality for species
- †Titanoides
- †Titanoides gidleyi – or unidentified comparable form
- †Tomarctus
- †Tornatellaea
- †Tornatellaea leai
- †Tornatellaea quercollis – tentative report
- †Tornatellaea texana
- †Tornatina – report made of unidentified related form or using admittedly obsolete nomenclature
- †Tornatina angelinae
- †Toromeryx
- †Toromeryx marginensis – type locality for species
- †Toxotherium
- †Toxotherium hunteri
- †Transovula
- †Transovula scobina – type locality for species
- †Trichiuris
- †Trigonias – tentative report
- †Trigonictis
- †Trigonictis cookii
- Trigonostoma
- †Trigonostoma babylonicum
- †Trigonostoma elegantissima – type locality for species
- †Trigonostoma gemmatum
- †Trigonostoma harrisi
- †Trigonostoma herbae – type locality for species
- †Trigonostoma jonesae – type locality for species
- †Trigonostoma panones
- †Trigonostoma penrosei
- †Trigonostoma sabinetownense
- †Trigonostoma sabinetownensis – type locality for species
- Trigonulina
- †Trigonulina satex
- †Trimalaxis – type locality for genus
- †Trimalaxis ora – type locality for species
- †Trinacria
- †Trinacria microcancellata – type locality for species
- †Tripia
- †Tripia anteatripla – tentative report
- †Triplopus – tentative report
- †Triplopus implicatus – or unidentified comparable form
- Trochita
- †Trochita aperta
- Trochocyathus
- †Trochocyathus coloradoensis – type locality for species
- †Trochocyathus uber – type locality for species
- Tropidoclonion
- †Tropisurcula
- †Tropisurcula crenula – tentative report
- †Tropisurcula grandis – type locality for species
- †Tropisurcula milamensis – type locality for species
- †Tropisurcula planus – type locality for species
- †Truncilla
- †Trygon
- †Trygon alveolatus – type locality for species
- †Trypanotoma
- †Trypanotoma longispira
- †Trypanotoma terebriformis
- †Trypanotopsis
- †Trypanotopsis texana
- †Tuba
- †Tuba antiquata
- Tubiola
- †Tubiola gracilis – type locality for species
- Tucetona
- †Tucetona sabinensis
- †Turbinolia
- †Turbinolia pharetra
- †Turbinolia subtercisa – type locality for species
- †Turbinolia tenuis
- Turboella
- Turbonilla
- †Turbonilla clinensis
- †Turbonilla meta – type locality for species
- †Turbonilla neglecta – type locality for species
- Turpinia[2]
- †Turpinia tiffneyi – type locality for species[2]
- Turricula
- †Turricula floweri
- †Turricula nasuta
- †Turricula plenta
- Turris
- †Turris bimaniofus – or unidentified comparable form
- †Turris capax
- †Turris mediavia
- †Turris nadoideus
- †Turris nasuta – or unidentified comparable form
- †Turris rockscreekensis
- †Turris specus
- Turritella
- †Turritella – type locality for species informal
- †Turritella bellifera
- †Turritella biplicata – or unidentified comparable form
- †Turritella chirena
- †Turritella cortezi
- †Turritella dutexata
- †Turritella eurynome
- †Turritella femina
- †Turritella hilli
- †Turritella houstonia
- †Turritella humerosa
- †Turritella kincaidensis
- †Turritella nasuta
- †Turritella nerinexa
- †Turritella ola
- †Turritella plummeri
- †Turritella polysticha
- †Turritella prehumerosa
- †Turritella premortoni
- †Turritella turneri
- †Tylotrochus
- Tympanuchus
- Typhina
- †Typhina palmerae
- †Typodus
- †Typodus thyroidea
- Tyto
U
- †Uintatherium – or unidentified comparable form
- Umbraculum
- †Umbraculum planulatum
- †Umbraculum tomaculum – type locality for species
- Unio
- Urocyon
- †Urocyon cinereoargenteus – or unidentified comparable form
- †Urocyon galushai
- Uromitra
- †Uromitra brazosana
- Ursus
- †Ustatochoerus
- †Ustatochoerus leptoscelos
- †Ustatochoerus major
V
- Vallonia
- †Varicobela
- †Varicobela filum – type locality for species
- Venericardia
- †Venericardia bashiplata
- †Venericardia densata – type locality for species
- †Venericardia dua
- †Venericardia eoa
- †Venericardia horatiana
- †Venericardia jewelli
- †Venericardia mediaplata
- †Venericardia planicosta
- †Venericardia rotunda
- †Venericardia smithi
- †Venericardia smithii
- †Venericardia stewarti
- †Venericardia texalana
- Verticordia
- †Verticordia satex – or unidentified comparable form
- Vertigo
- †Vetericardiella
- †Vetericardiella webbervillensis
- Vibracellina
- †Vibracellina capillaria
- †Viejadjidaumo
- †Viejadjidaumo magniscopuli – type locality for species
- †Viridomys
- †Vokesula
- †Vokesula aldrichi
- †Vokesula smithvillensis
- †Volutostrombus – type locality for genus
- †Volutostrombus eocenica – type locality for species
- †Volvaria
- †Volvaria gabbiana
- †Volvaria reticulata
- †Volvariella
- †Volvariella milamensis – type locality for species
- Volvulella
- †Volvulella reklawensis – type locality for species
- Vulpes
- †Vulpes stenognathus
- †Vulpes velox
- †Vulpes vulpes
X
Y
Z
- †Zanthopsis
- †Zanthopsis peytoni
- †Zanycteris – tentative report
- Zonitoides
References
- 1 2 3 4 Steven R. May (2019). "The Lapara Creek Fauna: Early Clarendonian of south Texas, USA". Palaeontologia Electronica. 22 (1): Article number 22.1.15. doi:10.26879/929.
- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Indah B. Huegele; Steven R. Manchester (2019). "Newly recognized diversity of fruits and seeds from the late Paleogene flora of Trinity County, East Texas, USA". International Journal of Plant Sciences. 180 (7): 681–708. doi:10.1086/704358. S2CID 201199597.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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