List of the Paleozoic life of Texas

{{Compact TOC}}

• †Aboculus – type locality for genus
• †Aboculus robustus – type locality for species
• †Acanthocladia
• †Acanthocladia americana
• †Acanthocladia guadalupensis
• †Acanthoclema
• †Acanthocoryna
• †Acanthocoryna stauroma
• †Acanthocrania
• †Acanthocrania alta – type locality for species
• †Acanthocrania conferta – type locality for species
• †Acanthocrania densispina – type locality for species
• †Acanthocrania intermedia
• †Acanthocrania magna
• †Acanthocrania minutispinosa – type locality for species
• †Acanthocrania platys – type locality for species
• †Acanthocrania regularis
• †Acanthocrania vasta – type locality for species
• †Acanthopecten
• †Acanthopecten carboniferus – or unidentified related form
• †Acanthopecten coloradoensis
• †Acanthopecten delawarensis – type locality for species
• †Acanthoplecta
• †Acanthoplecta inopinata – type locality for species
• †Acanthorota – type locality for genus
• †Acanthorota permiana – type locality for species
• †Acanthoschizorota – type locality for genus
• †Acanthoschizorota variabilis – type locality for species
• File:Acheloma 12DB.jpg]] †Acheloma – type locality for genus
• †Acheloma cumminsi – type locality for species
• †Achistrum
• †Achistrum brownwoodensis – type locality for species
• †Achistrum ludwigi – type locality for species
• †Achistrum monochordata
• †Acolosia – type locality for genus
• †Acolosia anomala – type locality for species
• †Acolosia elliptica
• †Acolosia exasperata
• †Acolosia glabra
• †Acolosia magna
• †Acolosia recepta – type locality for species
• †Acosarina
• †Acosarina baylorensis – type locality for species
• †Acosarina mesoplatys – type locality for species
• †Acosarina minuta – type locality for species
• †Acosarina peculiaris – type locality for species
• †Acosarina rectimarginata
• †Acritosia
• †Acritosia magna
• †Acritosia magnifica
• †Acritosia peculiaris – type locality for species
• †Acritosia silicica
• †Acritosia solida
• †Acritosia teguliferoides – type locality for species
• †Acritosia vestibula
• File:Acrodus nobilis Exhibit Museum of Natural History cropped.jpg]] †Acrodus – tentative report
• †Acrodus olsoni – type locality for species
• †Acrodus sweetlacruzensis – type locality for species
• †Acrothele
• †Actinocoelia
• †Actinocoelia maeandrina
• †Actinocoelia verrucosa – type locality for species
• †Actinoconchus
• †Actinohymen – type locality for genus
• †Actinohymen russelli – type locality for species
• †Actinophrentis
• †Actinophrentis bonespringense – type locality for species
• †Actinophrentis columnare – type locality for species
• †Acutichiton
• †Acutichiton pannuceus – type locality for species
• †Acutichiton pyrmidalus
• †Adamantina
• †Adamantina foliacea
• †Adlatipora – type locality for genus
• †Adlatipora fossulata – type locality for species
• †Adrianites – tentative report
• †Agathiceras
• †Agathiceras applini – type locality for species
• †Agathiceras ciscoense – type locality for species
• †Agathiceras contractum – type locality for species
• †Agathiceras frechi – type locality for species
• †Agathiceras girtyi – type locality for species
• †Agathiceras uralicum
• †Agelesia
• †Agelesia triagonalis – type locality for species
• †Agmoblastus
• †Agmoblastus caddense – type locality for species
• †Agnostocrinus
• †Agnostocrinus ornatus – type locality for species
• †Akmilleria
• †Akmilleria adkinsi – type locality for species
• †Akmilleria electraensis
• †Akmilleria huecoensis – type locality for species
• †Albaillella
• †Albaillella foremanae – type locality for species
• †Alegeinosaurus
• File:Alethopteris PAMuseum.jpg]] †Alethopteris
• †Alilepis
• †Alisporites
• †Alisporites plicatus – type locality for species
• †Alisporites zapfei
• †Allagecrinus
• †Allagecrinus bassleri
• †Allopiloceras
• †Allorhynchus
• †Allorhynchus circulare
• †Allorhynchus concentricum
• †Allorhynchus formulosum
• †Allorhynchus permianum – type locality for species
• †Allorhynchus triangulatum – type locality for species
• †Allorhynchus variabile – type locality for species
• †Allorhynchus venustulum
• †Allorisma – tentative report
• †Allorisma albequus
• †Allorisma dubium – or unidentified related form
• †Allotropiochisma
• †Allotropiochisma flabellum – type locality for species
• †Allotropiochisma texanum – type locality for species
• †Allotropiochisma uddenitense – type locality for species
• †Almites
• †Almites sellardsi – type locality for species
• †Altadema – type locality for genus
• †Altadema convexa – type locality for species
• †Altiplecus
• †Altiplecus argutus
• †Altiplecus cooperi
• †Altiplecus deltosus
• †Altiplecus extensus
• †Altiplecus glebosus – type locality for species
• †Altiplecus periosus
• †Altiplecus trapezoidalis
• †Altudoceras
• †Altudoceras altudense – type locality for species
• †Altudoceras cooperi – type locality for species
• †Altudoceras serratum – type locality for species
• †Alveus – type locality for genus
• †Alveus depressus – type locality for species
• †Amandophyllum
• †Amaurotoma
• †Amaurotoma subsinuata
• †Amblysiphonella
• †Ambozone
• †Ambozone dictyonema
• †Ametoria – type locality for genus
• †Ametoria residua – type locality for species
• †Ammovertella
• †Amphicrinus
• †Amphipella
• †Amphipella arcaria
• †Amphipella attenuata
• †Amphiscapha
• †Amphiscapha catilloides
• †Amphiscapha dextrata – type locality for species
• †Amphiscapha gigantea – type locality for species
• †Amphiscapha muricata
• †Amphiscapha subquadrata
• †Amphissites
• †Amphissites centronotus – or unidentified comparable form
• †Amphissites knighti – type locality for species
• †Amplexizaphrentis
• †Amplexocarinia
• †Amplexus – report made of unidentified related form or using admittedly obsolete nomenclature
• File:Pectinidae - Amusium cristatum.JPG]] Amusium – tentative report
• †Ananias
• †Ananias appeli
• †Ananias labrectus
• †Ananias ootomaria – type locality for species
• †Ananias permianus
• †Ananias welleri
• †Anatsabites
• †Anatsabites multiliratus – type locality for species
• †Anatsabites williamsi
• †Anconochilus – type locality for genus
• †Anconochilus barnesi – type locality for species
• †Anemonaria
• †Anemonaria sublaevis – type locality for species
• †Aneuthelasma
• †Aneuthelasma amygdalinum
• †Angelosaurus – type locality for genus
• †Angelosaurus dolani – type locality for species
• †Angelosaurus greeni – type locality for species
• †Angyomphalus
• †Anisodexis
• †Anisopyge – type locality for genus
• †Anisopyge cooperi – type locality for species
• †Anisopyge perannulata – type locality for species
• File:Annularia Stellata.jpg]] †Annularia
• †Annularia maxima
• †Annularia spicata
• †Annularia stellata – or unidentified comparable form
• †Annuliconcha
• †Annuliconcha dentata
• †Annuliconcha interlineata
• †Anodontacanthus
• †Anodontacanthus americanus
• †Anomalesia
• †Anomalesia perplexa
• †Anomaloria
• †Anomaloria anomala
• †Anomphalus
• †Anomphalus studiosus – type locality for species
• †Anomphalus umbilicatus – or unidentified comparable form
• †Anomphalus verruculiferus
• †Anopliopsis
• †Anopliopsis subcarinata
• †Anoptychia
• †Anteridocus – type locality for genus
• †Anteridocus bicostatus
• †Anteridocus erugatus
• †Anteridocus eximius
• †Anteridocus gongylus – type locality for species
• †Anteridocus paucicostatus – type locality for species
• †Anteridocus seminudus
• †Anteridocus subcarinatus
• †Anteridocus swallovianus – type locality for species
• †Anteridocus triangulatus
• †Anthracopupa
• †Anthracopupa ohioensis
• †Anthracosycon
• †Anthracosycon auriforme – type locality for species
• †Anthracosycon ficus
• †Anthracosycon regulare
• †Antiquatonia
• †Antiquatonia inflativentra
• †Antiquatonia portlockianus
• †Antronaria – type locality for genus
• †Antronaria dissona – type locality for species
• †Antronaria emarginata
• †Antronaria indentata
• †Antronaria mesicostalis – type locality for species
• †Antronaria pluricosta
• †Antronaria specialis
• †Antronaria speciosa – type locality for species
• †Antronaria spectabilis
• †Antronaria titania
• †Antronaria transversa
• †Antronaria voluminosa – type locality for species
• †Apachella
• †Apachella capertoni – type locality for species
• †Apachella exaggerata
• †Apachella franciscana
• †Apachella glabra – type locality for species
• †Apachella huecoensis – type locality for species
• †Apachella nodosa
• †Apachella powwowensis – type locality for species
• †Apachella prodontia
• †Apachella pseudostrigillata
• †Apachella texana – type locality for species
• †Apachella translirata
• †Apachella turbiniformis
• †Apatokephalus
• †Apatokephalus serratus
• †Aphaurosia
• †Aphaurosia rotundata
• †Aphaurosia scutata
• †Aphelaspis
• File:Cameroceras trentonese.jpg being preyed upon by a Cameroceras]] †Aphetoceras
• †Aphlebia
• †Apographiocrinus
• †Apographiocrinus arcuatus – or unidentified comparable form
• †Apographiocrinus raderi – type locality for species
• †Apographiocrinus typicalis
• †Apotocardium
• †Apotocardium cordatum – type locality for species
• †Apotocardium obliquum
• †Apsisaurus – type locality for genus
• †Apsisaurus witteri – type locality for species
• †Apsotreta
• †Apsotreta expansa
• †Apterrinella – tentative report
• †Araeonema
• †Araeonema virgatum
• File:Araeoscelis.jpg]] †Araeoscelis – type locality for genus
• †Araeoscelis casei
• †Araeoscelis gracilis – type locality for species
• †Araucarites
• †Araxathyris – or unidentified comparable form
• †Arceodomus
• †Arceodomus prolata – type locality for species
• †Archaeocidaris
• †Archaeocidaris brownwoodensis – type locality for species
• †Archaeocidaris cratis
• †Archaeocycas
• †Archaeocycas whitei
• Archaeolithophyllum
• †Archaeolithoporella
• †Archaeoscyphia
• †Archaeoscyphia annulata
• File:Archeria BW.jpg]] †Archeria – type locality for genus
• †Archeria crassidisca – type locality for species
• †Archimedes
• †Arcochiton
• †Arcochiton raymondi
• †Arcuolimbus
• †Arcuolimbus convexus
• †Arionthia – type locality for genus
• †Arionthia alata
• †Arionthia blothrhachis – type locality for species
• †Arionthia germana – type locality for species
• †Arionthia lamaria
• †Arionthia polypleura
• †Aristoceras
• †Aristoceras appressum
• †Armenoceras
• †Armenoceras australe
• †Arrectocrinus
• †Arrectocrinus major – type locality for species
• †Arrectocrinus texanus – type locality for species
• †Artinskia
• †Artinskia artiensis
• †Artinskia lilianae – type locality for species
• †Artisia
• †Asaphellus
• †Aspidiopsis
• †Aspidosaurus – type locality for genus
• †Aspidosaurus binasser – type locality for species
• †Aspidosaurus chiton – type locality for species
• †Aspidosaurus glascocki – type locality for species
• †Aspidosaurus peltatus – type locality for species
• †Assimulia
• †Assimulia abscessa – type locality for species
• †Assimulia arta – type locality for species
• †Assimulia compacta – type locality for species
• †Assimulia flexibilis – type locality for species
• †Assimulia fracta – type locality for species
• †Assimulia frequentis – type locality for species
• †Assimulia recrea – type locality for species
• †Assimulia tergida – type locality for species
• †Assimulia uddenitense – type locality for species
• †Astartella
• †Astartella concentrica
• †Astartella nasuta
• †Astartella subquadrata
• †Astegosia
• †Astegosia subquadrata
• †Atelestegastus
• †Atelestegastus marginatus
• †Athlocrinus
• †Athyris
• †Athyris bradyensis – type locality for species
• †Attenuatella
• †Attenuatella texana
• †Aulopora – report made of unidentified related form or using admittedly obsolete nomenclature
• †Aulosteges
• †Aurikirkbya
• †Aurikirkbya auriformis – type locality for species
• †Aurikirkbya barbarae – type locality for species
• †Aurikirkbya wordensis – type locality for species
• †Austinella
• †Austinella kankakensis
• †Australosutura
• †Australosutura llanoensis
• File:Aviculopecten subcardiformis01.JPG]] †Aviculopecten
• †Aviculopecten ballingerana
• †Aviculopecten girtyi – type locality for species
• †Aviculopecten gryphus – type locality for species
• †Aviculopecten herzeri
• †Aviculopecten occidentalis
• †Aviculopecten sumnerensis
• †Aviculopecten texanus
• †Aviculopinna
• †Avonia
• †Avonia honeycreekensis – type locality for species
• †Avonia latidorsata
• †Avonia meekana
• †Avonia pustulifera – or unidentified comparable form
• †Avonia signata
• †Avonia subhorrida
• †Avonia walcottiana

0 Links

{{Compact TOC}}

• †Babylonites – type locality for genus
• †Babylonites acutus – type locality for species
• †Babylonites carinatus – type locality for species
• †Babylonites conicus – type locality for species
• †Babylonites turritus – type locality for species
• †Bactrites
• †Bactrites elcapitanensis
• †Baiosoma
• †Baiosoma pala – type locality for species
• Bairdia
• †Bairdia guadalupiana – type locality for species
• †Bairdia permiana – type locality for species
• †Bairdia plebeia – or unidentified related form
• †Bairdia pruniseminata – type locality for species
• †Bairdia rhomboidalis – type locality for species
• †Bairdia subfusiformis – type locality for species
• †Bairdia wordensis – type locality for species
• †Bakevellia
• †Balkoceras – type locality for genus
• †Balkoceras gracile – type locality for species
• †Bamberina
• †Bamberina annectens
• †Bamyaniceras
• †Bamyaniceras knighti
• †Bamyaniceras simile
• †Barbclabornia
• †Barbclabornia luedersensis – type locality for species
• †Barnesoceras – type locality for genus
• †Barnesoceras clavatum – type locality for species
• †Barnesoceras conosiphonatum – type locality for species
• †Barnesoceras expansum – type locality for species
• †Barnesoceras lamellosum – type locality for species
• †Barnesoceras lentiexpansum – type locality for species
• †Barnesoceras percurvatum – type locality for species
• †Barnesoceras transversum – type locality for species
• †Bathyglyptus – type locality for genus
• †Bathyglyptus theodori – type locality for species
• †Bathymyonia
• †Bathymyonia nevadensis
• †Bathyurellus
• †Baylea
• †Baylea delawarensis – type locality for species
• †Baylea huecoensis – type locality for species
• †Baylea knighti
• †Baylea kuesi – type locality for species
• †Baylea subconstricta
• †Baylea supercrenata – or unidentified comparable form
• †Baylea vjatkensis
• †Beecheria
• †Beecheria chouteauensis
• †Beecheria elliptica
• †Beecheria expansa
• File:Bellerophon umbilicalis.jpg]] †Bellerophon – tentative report
• †Bellerophon
• †Bellerophon complanatus – type locality for species
• †Bellerophon deflectus
• †Bellerophon graphicus
• †Bellerophon hilli – type locality for species
• †Bellerophon huecoensis – type locality for species
• †Bellerophon kingorum – type locality for species
• †Bellerophon majusculus
• †Bellerophon parvicristus – type locality for species
• †Bellerophor
• †Belodella
• †Belodella silurica
• †Belodella striata – or unidentified comparable form
• †Beltella
• †Bembexia
• †Biarmeaspira
• †Biarmeaspira multilineata
• †Bicuerda
• †Bicuerda columnare – type locality for species
• †Bighornia
• †Bighornia patella – or unidentified comparable form
• †Bitaunioceras
• †Bitaunioceras texanum – type locality for species
• †Blountia
• †Blountia assimilis
• †Blountia ovata
• †Blountiella
• †Blountina
• †Blountina westoni – or unidentified related form
• †Boesites
• †Boesites kingi – type locality for species
• †Boesites scotti – type locality for species
• †Boesites texanus – type locality for species
• File:Bolosaurus.jpg]] †Bolosaurus – type locality for genus
• †Bolosaurus major – type locality for species
• †Bolosaurus striatus – type locality for species
• †Borestus
• †Borestus magdalenensis – type locality for species
• †Borestus texanus – type locality for species
• †Bothrionia – type locality for genus
• †Bothrionia guadalupensis
• †Bothrionia nasuta – type locality for species
• †Bothrionia pulchra
• †Bothrionia transversa – type locality for species
• †Bothrostegium – type locality for genus
• †Bothrostegium compactum – type locality for species
• †Bothrostegium derbyoideum
• †Bothrostegium pusillum
• †Boultonia
• †Boultonia guadalupensis – type locality for species
• †Bowmanites
• File:Brachydectes.jpg]] †Brachydectes
• †Brachydectes elongatus
• †Brachydegma
• †Brachydegma caelatum
• †Brachymetopus – tentative report
• †Brachymetopus rhinorhachis – type locality for species
• †Brachyphyllum – tentative report
• †Brachyphyllum densum – type locality for species
• †Brachythyris
• †Brachythyris chouteauensis
• †Bradyphyllum
• †Bradyphyllum coagmentum – type locality for species
• †Bradyphyllum counterseptatum – type locality for species
• †Bradyphyllum postwannense – type locality for species
• †Branneroceras
• †Branneroceras branneri
• †Brochidium
• †Brochidium morrisi – type locality for species
• File:Broiliellus olsoni.jpg]] †Broiliellus – type locality for genus
• †Broiliellus arroyoensis – type locality for species
• †Broiliellus brevis – type locality for species
• †Broiliellus olsoni – type locality for species
• †Broiliellus peltatus – type locality for species
• †Broiliellus texensis – type locality for species
• †Bryograptus
• †Bryorhynchus
• †Bryorhynchus bisulcatum – type locality for species
• †Bryorhynchus gratiosum – type locality for species
• †Bryorhynchus nitidum
• †Bryorhynchus plicatum
• †Bucanopsis
• †Bucanopsis type locality for species – informal
• †Buekkella
• †Buekkella digitata – type locality for species
• †Burenoceras
• †Burenoceras cornucopia – type locality for species
• †Burenoceras muricoides – type locality for species
• †Burenoceras phragmoceroides – type locality for species
• Bythocypris
• †Byzantia – type locality for genus
• †Byzantia obliqua – type locality for species

{{Compact TOC}}

• File:Cacops1DB.jpg]] †Cacops
• †Cacops aspidephorus – type locality for species
• †Cactosteges – type locality for genus
• †Cactosteges anomalus – type locality for species
• †Calamites
• †Calamites undulatus
• †Calapoecia
• †Calapoecia ungava – or unidentified comparable form
• †Calathium
• †Calcivertella
• †Calclamnella
• †Calclyra
• †Calclyra eiseliana
• †Calclyra spathulata – type locality for species
• †Calclyra spinata – type locality for species
• †Calclyra triangulata – type locality for species
• †Calliprotonia
• File:Callipteridium fossil cropped.png]] †Callipteridium
• †Callipteridium pteridium – or unidentified comparable form
• †Callipteridium virginianum
• †Callipteris
• †Callipteris conferta
• †Callipteris flabellifera
• †Callispirina
• †Callispirina rotunda
• †Callistadia – type locality for genus
• †Callistadia bella – type locality for species
• †Callitomaria
• †Callitomaria magna – type locality for species
• †Callitomaria stanislavi
• †Calophyllum – tentative report
• †Calycocoelia
• †Calycocoelia typicalis
• †Camarelasma
• †Camarelasma neali
• †Camarophorella
• †Camarophorella dorsata – type locality for species
• †Camarophorina – tentative report
• †Camarotoechia
• †Campophyllum – tentative report
• †Campophyllum texanum – type locality for species
• †Camptochiton – type locality for genus
• †Camptochiton squarrosus – type locality for species
• †Camptonectes – tentative report
• †Cancrinella
• †Cancrinella boonensis – tentative report
• †Cancrinella parva
• †Cancrinella planumbona
• †Cancrinella sparsispinosa
• †Cancrinella subquadrata – type locality for species
• †Caneyella
• †Caneyella wapanuckensis
• †Capillomesolobus
• †Capillomesolobus permianus
• †Captorhinikos
• †Captorhinikos chozaensis – type locality for species
• †Captorhinikos valensis
• †Captorhinoides – type locality for genus
• †Captorhinoides valensis – type locality for species
• File:Captorhinus BW.jpg]] †Captorhinus – type locality for genus
• †Captorhinus aguti – type locality for species
• †Captorhinus laticeps – type locality for species
• †Carbonicola
• †Carbonocoryphe
• †Carbonocoryphe depressa
• †Carbonocoryphe planucauda
• †Cardiella
• †Cardiella electraensis
• †Cardiella ganti
• †Cardiella sulcata – type locality for species
• File:Cardiocephalus peabodyi.jpg]] †Cardiocephalus – type locality for genus
• †Cardiocephalus sternbergi – type locality for species
• †Cardiomorpha
• †Carphites – type locality for genus
• †Carphites diabloensis – type locality for species
• †Carphites plectus
• †Carpolithes
• †Carrolla – type locality for genus
• †Carrolla craddocki – type locality for species
• †Cartorhium – type locality for genus
• †Cartorhium chelomatum – type locality for species
• †Cartorhium coristum
• †Cartorhium latum – type locality for species
• †Cartorhium mexicanum – type locality for species
• †Cartorhium orbiculatum
• †Cartorhium retusum
• †Cartorhium vidriense – type locality for species
• †Cartorhium zoyei – type locality for species
• File:Casea_BW.jpg]] †Casea – type locality for genus
• †Casea broilii – type locality for species
• †Casea halselli – type locality for species
• †Casea nicholsi – type locality for species
• †Caseoides – type locality for genus
• †Caseoides sanangeloensis – type locality for species
• †Caseopsis
• †Caseopsis agilis – type locality for species
• †Cassianoides – type locality for genus
• †Cassianoides kingorum – type locality for species
• †Cassiavellia – type locality for genus
• †Cassiavellia galtarae – type locality for species
• File:Museum Mensch und Natur - catenipora.jpg]] †Catenipora
• †Catenipora workmanae – type locality for species
• †Catenispongia – type locality for genus
• †Catenispongia agaricus – type locality for species
• †Cathaysiopteris
• †Cathaysiopteris yochelsonii – type locality for species
• †Catoraphiceras
• †Cavellina
• †Cavellina ellipticalis – type locality for species
• †Cavellina nebrascensis
• File:Cedaria minor CRF.jpg]] †Cedaria
• †Cedaria gaspensis – or unidentified comparable form
• †Cenorhynchia – type locality for genus
• †Cenorhynchia atmeta
• †Cenorhynchia camerata
• †Cenorhynchia fracida – type locality for species
• †Cenorhynchia hebata
• †Cenorhynchia mitigata
• †Cenorhynchia nasuta
• †Cenorhynchia parvula – type locality for species
• †Cenorhynchia pentagonalis
• †Cenorhynchia saginata – type locality for species
• †Cenorhynchia transversa
• †Cenorhynchia triangulata – type locality for species
• †Cenorhynchia ventricosa
• †Centrotarphyceras
• †Centrotarphyceras longicameratum
• †Ceratobairdia – type locality for genus
• †Ceratobairdia dorsospinosa – type locality for species
• †Ceratopea
• †Ceratopea capuliformis
• †Ceratopea hami – or unidentified comparable form
• †Ceratopea incurvata
• †Ceratopea lemonei – type locality for species
• †Ceratopea unguis – or unidentified comparable form
• †Ceraunocochlis
• †Ceraunocochlis deformis – type locality for species
• †Ceraunocochlis elongata – type locality for species
• †Ceraunocochlis kidderi
• †Ceraunocochlis trekensis – type locality for species
• †Chaeniorhynchus – type locality for genus
• †Chaeniorhynchus inauris
• †Chaeniorhynchus salutare
• †Chaeniorhynchus transversum – type locality for species
• †Chaenomya – tentative report
• †Chaetetes
• †Chaetetes mackrothii – tentative report
• File:ChancelloriaEros-Detail NaturhistorischesMuseum Nov14-10.jpg]] †Chancelloria – tentative report
• †Chauliochiton – type locality for genus
• †Chauliochiton knighti – type locality for species
• †Chaunactis
• †Cheiropyge
• †Cheiropyge koizumii – or unidentified comparable form
• †Chelononia
• †Chelononia neali
• †Chelononia straminea – type locality for species
• †Chiastocolumnia – type locality for genus
• †Chiastocolumnia cylindrica – type locality for species
• †Choanodus – type locality for genus
• †Choanodus anomalus
• †Choanodus irregularis – type locality for species
• †Choanodus perfectus – type locality for species
• †Choctawites
• †Choctawites choctawensis
• †Choctawites cumminsi
• †Chondronia – type locality for genus
• †Chondronia bella – type locality for species
• †Chondronia ningula – type locality for species
• †Chondronia obesa
• †Chondronia ovalis – type locality for species
• †Chondronia parva
• †Chondronia rectimarginata
• †Chonetella
• †Chonetella flemingi
• †Chonetes
• †Chonetes flemingi – tentative report
• †Chonetes permianus
• †Chonetes verneuilianus
• †Chonetinella
• †Chonetinella biplicata
• †Chonetinella ciboloensis
• †Chonetinella crassiparva
• †Chonetinella gerontica
• †Chonetinella parva
• †Chonetinella spinolirata – type locality for species
• †Chonetinetes
• †Chonetinetes angustisulcatus
• †Chonetinetes reversus – type locality for species
• †Chonetinetes varians
• †Chonosteges
• †Chonosteges costellatus – type locality for species
• †Chonosteges limbatus
• †Chonosteges magnicostatus – type locality for species
• †Chonosteges matutinus
• †Chonosteges multicostatus
• †Chonosteges pulcher
• †Chonosteges variabilis – type locality for species
• †Cibecuia
• †Cibecuia gouldii – type locality for species
• †Cibolites – type locality for genus
• †Cibolites uddeni – type locality for species
• †Cibolocrinus – type locality for genus
• †Cibolocrinus erectus – type locality for species
• †Cibolocrinus typus – type locality for species
• †Cinclidonema – type locality for genus
• †Cinclidonema texanum – type locality for species
• †Cladopora – report made of unidentified related form or using admittedly obsolete nomenclature
• †Cladopora spinulata
• †Cladopora tubulata
• †Clarkoceras
• †Clarkoceras luthei – or unidentified related form
• †Clavallus
• †Clavallus spicaudina
• †Cleidophorus – report made of unidentified related form or using admittedly obsolete nomenclature
• †Cleidophorus delawarensis
• File:Cleiothyridina sublamellosa pedunculate valve.jpg]] †Cleiothyridina
• †Cleiothyridina mulsa
• †Cleiothyridina nana
• †Cleiothyridina pilularis
• †Cleiothyridina prouti – or unidentified comparable form
• †Cleiothyridina rara
• †Cleiothyridina rectimarginata – type locality for species
• †Cleiothyridina tenuilineata
• †Clelandoceras – tentative report
• †Clelandoceras rarum – type locality for species
• †Climacograptus
• †Climacograptus nevadensis
• †Climacograptus tubuliferus
• †Clinodomia
• †Clinodomia obstipa
• †Clinolobus
• †Clinolobus type locality for species – informal
• †Clinopistha – tentative report
• †Clinopistha levis – or unidentified comparable form
• †Clistoceras
• †Clitendoceras
• †Clonograptus
• †Cluthoceras
• †Coccoseris
• †Coccoseris astomata – type locality for species
• †Codonofusiella
• †Codonofusiella paradoxica
• †Coelocladia
• †Coelocladia spinosa
• †Coelocladiella – type locality for genus
• †Coelocladiella lissa
• †Coelocladiella philoconcha – type locality for species
• †Coelogasteroceras
• †Coelogasteroceras mexicanum
• †Coenocystis – type locality for genus
• †Coenocystis richardsoni – type locality for species
• †Coledium
• †Coledium altisulcatum – type locality for species
• †Coledium costatulum – type locality for species
• †Coledium evexum
• †Coledium undulatum
• †Coledium vadosulcatum – type locality for species
• †Collatipora – type locality for genus
• †Collatipora delicata
• †Collatipora discreta – type locality for species
• †Collatipora pyriformis
• †Collemataria – type locality for genus
• †Collemataria americana
• †Collemataria batilliformis
• †Collemataria elongata – type locality for species
• †Collemataria gregaria – type locality for species
• †Collemataria irregularis – type locality for species
• †Collemataria marshalli
• †Collemataria platys – type locality for species
• †Collemataria spatulata
• †Collumatus
• †Collumatus solitarius
• †Colospongia
• †Colospongia americana
• †Colospongia benjamini
• †Colospongiella – type locality for genus
• †Colospongiella permiana – type locality for species
• †Colpites
• †Colpites minutus
• †Colpites monilifera
• †Colpites striata
• †Comia
• †Complexisporites – type locality for genus
• †Complexisporites polymorphus – type locality for species
• File:Compositafossil.jpg]] †Composita
• †Composita affinis
• †Composita apheles – type locality for species
• †Composita apsidata
• †Composita bucculenta – type locality for species
• †Composita costata
• †Composita cracens
• †Composita crassa – type locality for species
• †Composita discina
• †Composita emarginata
• †Composita enormis – type locality for species
• †Composita imbricata – type locality for species
• †Composita mexicana
• †Composita mira
• †Composita nucella
• †Composita ovata
• †Composita parasulcata – type locality for species
• †Composita persinuata
• †Composita pilula
• †Composita prospera
• †Composita pyriformis
• †Composita quantilla
• †Composita stalagmium
• †Composita strongyle – type locality for species
• †Composita subcircularis
• †Composita subtilita
• †Compressoproductus
• †Compressoproductus acuminatus
• †Compressoproductus concentricus
• †Compressoproductus curtus – type locality for species
• †Compressoproductus flabellatus
• †Compressoproductus parvus
• †Compressoproductus pinniformis
• †Compressoproductus rarus – type locality for species
• †Compressoproductus thomasi – type locality for species
• †Condrathyris
• †Condrathyris perplexa
• †Conjunctio
• †Conocardium – tentative report
• †Conocerina
• †Conocerina brevis – or unidentified comparable form
• †Conocerina unguloides – type locality for species
• †Cooleyella
• †Cooleyella amazonensis
• †Cooleyella duffini – type locality for species
• †Cooperaria – type locality for genus
• †Cooperaria getawayensis – type locality for species
• †Coopericus
• †Coopericus angustus – type locality for species
• †Coopericus semisulcatus
• †Coopericus undatus
• †Cooperina
• †Cooperina inexpectata
• †Cooperina parva – type locality for species
• †Cooperina subcuneata
• †Cooperina triangulata
• †Cooperoceras – type locality for genus
• †Cooperoceras texanum – type locality for species
• †Coosella
• †Coosella beltensis
• †Coosella granulosa
• †Coosella widnerensis – or unidentified comparable form
• †Coosia
• †Coosia pernamagna
• File:Cordaites fossil cropped.png]] †Cordaites
• †Cordaites principalis
• †Coronakirkbya – type locality for genus
• †Coronakirkbya fimbriata – type locality for species
• †Coryellina
• †Coryellina indicata – type locality for species
• †Coryssochiton – type locality for genus
• †Coryssochiton parallelus – type locality for species
• †Coscinophora – type locality for genus
• †Coscinophora hortoni
• †Coscinophora magnifica – type locality for species
• †Coscinophora monilifera – type locality for species
• †Coscinophora nodosa – type locality for species
• †Costatumulus
• †Costatumulus distortus
• †Costatumulus expansa – type locality for species
• †Costatumulus fragosa
• †Costatumulus villiersi
• †Costellarina – type locality for genus
• †Costellarina costellata – type locality for species
• †Costiferina
• †Costiferina indica
• †Costispinifera
• †Costispinifera costata – type locality for species
• †Costispinifera rugatula
• †Costispinifera walcottiana
• †Cotteroceras
• File:CotylorhynchusDB2.jpg]] †Cotylorhynchus
• †Cotylorhynchus hancocki – type locality for species
• †Cranaena
• †Cranaena dorsisulcata – type locality for species
• †Cranaena hannibalensis – or unidentified comparable form
• †Cranaena texana – type locality for species
• Crania
• †Crania permiana – type locality for species
• †Craspedona
• †Craspedona limbata – type locality for species
• †Craspedona newelli
• †Crassumbo – type locality for genus
• †Crassumbo inornatus – type locality for species
• †Crassumbo turgidus – type locality for species
• †Cravenoceras – tentative report
• †Crenispirifer
• †Crenispirifer angulatus – type locality for species
• †Crenispirifer effrenus
• †Crenispirifer jubatus
• †Crenispirifer myllus
• †Crenispirifer sagus
• †Crenulites – type locality for genus
• †Crenulites duncanae – type locality for species
• †Crenulites magnus – type locality for species
• File:Cricotus heteroclitus Cope.jpg. Edward Drinker Cope (1884).]] †Cricotus
• †Cricotus crassidiscus – type locality for species
• †Crimites
• †Crimites glomulus – tentative report
• †Crimites type locality for species – informal
• †Cromyocrinus
• †Cromyocrinus grandis – or unidentified comparable form
• †Crossotelos
• †Crossotelos annulatus
• †Cruricella
• †Cruricella minutalis – type locality for species
• †Crurithyris
• †Crurithyris inflata
• †Crurithyris longirostris
• †Crurithyris major
• †Crurithyris parva
• †Crurithyris planoconvexa
• †Crurithyris sulcata
• †Cryptacanthia
• †Cryptacanthia glabra
• †Ctenacanthus
• †Ctenacanthus amblyxiphias – type locality for species
• †Ctenalosia – type locality for genus
• †Ctenalosia fixata – type locality for species
• †Ctenalosia primitiva
• †Ctenalosia rotunda
• †Ctenoptychius
• †Ctenospondylus – type locality for genus
• †Ctenospondylus casei – type locality for species
• †Cullisonia
• †Cullisonia producta
• †Culmitzschia
• †Culunama
• †Culunama bellistiata
• †Cuniculocystis – type locality for genus
• †Cuniculocystis floweri – type locality for species
• †Cupularostrum – tentative report
• †Cyathophylloides
• †Cyathophylloides burksae – type locality for species
• †Cycadospadix
• †Cyclacantharia
• †Cyclacantharia gigantea
• †Cyclacantharia kingorum – type locality for species
• †Cyclacantharia paucispinosa – type locality for species
• †Cyclacantharia robusta
• †Cyclacantharia transitoria – type locality for species
• †Cyclites
• †Cyclites costatus – type locality for species
• †Cyclites multilineata – type locality for species
• †Cyclobathmus
• †Cyclobathmus haworthi
• †Cylicioscapha
• †Cylicioscapha texana – type locality for species
• †Cylicioscapha williamsi – type locality for species
• †Cylindritopsis
• †Cylindritopsis hamiltonae – type locality for species
• †Cylindritopsis insolitus
• †Cylindritopsis spheroides – type locality for species
• †Cylindritopsis vaningeni
• †Cymatospira
• †Cymatospira montfortianus
• †Cyphotalosia – type locality for genus
• †Cyphotalosia masonensis – type locality for species
• †Cypricardinia – tentative report
• †Cypricardinia contracta – type locality for species
• †Cyptendoceras
• †Cyptendoceras richardsoni – type locality for species
• †Cyrtina
• †Cyrtina burlingtonensis
• †Cyrtorostra
• †Cyrtorostra varicostata
• †Cystothalamia – type locality for genus
• †Cystothalamia guadalupensis – type locality for species
• †Cystothalamia megacysta
• †Cystothalamia nodulifera

{{Compact TOC}}

• †Dactylites
• †Dactylites magna – type locality for species
• †Dactylites micropora – type locality for species
• †Dactylites obconica – type locality for species
• †Dactylites subdigitatus – type locality for species
• File:Dadoxylon-chalala.jpg]] †Dadoxylon
• †Daharella
• †Daharella crassa – type locality for species
• †Daharella pattersonia – type locality for species
• †Daharella ramosa
• †Daixites
• †Daixites meglitskyi – or unidentified comparable form
• †Dakeoceras – tentative report
• †Dakeoceras mutabile – type locality for species
• †Danaeites
• †Dapsilodus
• †Dapsilodus obliquicostatus
• †Dapsilodus praecipuus
• †Dapsilodus sparsus
• †Daraelites
• †Daraelites leonardensis – type locality for species
• File:Dasyceps bucklandi.jpg]] †Dasyceps
• †Dasyceps microphthalmus – type locality for species
• †Dasysaria
• †Dasysaria inca
• †Dasysaria undulata
• †Dasysaria wolfcampensis – type locality for species
• †Dateroceras
• †Daubreeia
• †Decoriconus
• †Decoriconus fragilis
• †Defordia
• †Defordia defuncta
• †Defordia densa – type locality for species
• †Defordia lobata
• †Deiracephalus
• †Deiracephalus aster
• †Delaria
• †Delaria antiqua
• †Delaria brevis – type locality for species
• †Delaria chinatiensis – type locality for species
• †Delaria granti – type locality for species
• †Delaria westexensis – type locality for species
• †Delnortea
• †Delnortea abbotiae
• †Delnortea abbottiae
• †Delocrinus
• †Delocrinus hemisphericus
• †Delocrinus pictus
• †Delocrinus subhemisphericus
• †Deltarina
• †Deltarina magnicostata
• †Deltopecten
• †Demarezites
• †Dendropupa
• †Dendropupa vetusta
• †Densonella
• Dentalium
• †Derbyia
• †Derbyia bella
• †Derbyia bennetti – or unidentified comparable form
• †Derbyia buchi
• †Derbyia carteri
• †Derbyia cincinnata – type locality for species
• †Derbyia ciscoensis – tentative report
• †Derbyia complicata – type locality for species
• †Derbyia crassa
• †Derbyia crenulata
• †Derbyia cymbula
• †Derbyia elevata
• †Derbyia filosa – type locality for species
• †Derbyia informis – type locality for species
• †Derbyia laqueata – type locality for species
• †Derbyia multistriata – tentative report
• †Derbyia nasuta
• †Derbyia pannucia – type locality for species
• †Derbyia profunda
• †Derbyia scitula
• †Derbyia strophomenoidea
• †Derbyia sulcata
• †Derbyia texta – type locality for species
• †Derbyia wabaunseensis – tentative report
• †Derbyoides
• †Derbyoides dunbari
• †Derbyoides marathonensis
• †Dermospheroidalis – type locality for genus
• †Dermospheroidalis irregularis – type locality for species
• †Desmoinsea
• †Diaboloceras
• †Diaboloceras varicostatum
• File:Diadectes1DB.jpg]] †Diadectes – type locality for genus
• †Diadectes sideropelicus – type locality for species
• †Diadectes tenuitectes – type locality for species
• †Diaphelasma
• †Diaphelasma oklahomense
• †Dibunophyllum
• †Dibunophyllum moorei
• †Dibunophyllum uddeni – type locality for species
• †Dicellograptus
• †Dicellograptus ornatus
• †Diceromyonia
• †Diceromyonia crassa – type locality for species
• †Dichostasia
• †Dichostasia complex – type locality for species
• †Dichostasia simplex – type locality for species
• †Dicksonites
• †Dicranophyllum
• †Dictyoclostus
• †Dictyoclostus semireticulatus – tentative report
• †Dictyotomaria
• †Dictyotomaria euglyphea – type locality for species
• †Dictyotomaria scitula
• †Dictyotomaria type locality for species – informal
• †Didymodus
• †Didymodus platypternus
• †Dielasma
• †Dielasma adamanteum – type locality for species
• †Dielasma anterolatum
• †Dielasma bellulum
• †Dielasma bovidens
• †Dielasma compactum – type locality for species
• †Dielasma cordatum – type locality for species
• †Dielasma diabloense
• †Dielasma ellipsoideum – type locality for species
• †Dielasma emarginatum – type locality for species
• †Dielasma expansum – type locality for species
• †Dielasma gracile – type locality for species
• †Dielasma hessense
• †Dielasma labiatum
• †Dielasma ligonorum
• †Dielasma longisulcatum
• †Dielasma microrhynchum
• †Dielasma obesum – type locality for species
• †Dielasma perplexum – type locality for species
• †Dielasma pictile
• †Dielasma planidorsatum – type locality for species
• †Dielasma prolongatum
• †Dielasma pygmaeum
• †Dielasma rigbyi
• †Dielasma shafterense – type locality for species
• †Dielasma spatulatum
• †Dielasma subcirculare
• †Dielasma subcylindricum
• †Dielasma sulcatum – type locality for species
• †Dielasma uniplicatum
• †Dielasma zebratum – type locality for species
• †Dielasmella
• †Dielasmella larga – type locality for species
• †Diffingia – type locality for genus
• †Diffingia coita – type locality for species
• †Diffingia collecticia – type locality for species
• †Diffingia divisa – type locality for species
• †Diffingia largifica
• †Diffingia tortuosa – type locality for species
• †Diffingia valida – type locality for species
• †Dimacrodon – type locality for genus
• †Dimacrodon hottoni – type locality for species
• †Dimetrodon – type locality for genus
• †Dimetrodon angelensis – type locality for species
• †Dimetrodon booneorum – type locality for species
• †Dimetrodon dollovianus – type locality for species
• †Dimetrodon gigashomogenes – type locality for species
• †Dimetrodon grandis – type locality for species
• †Dimetrodon kempae – type locality for species
• †Dimetrodon limbatus – type locality for species
• †Dimetrodon loomisi – type locality for species
• †Dimetrodon macrospondylus – type locality for species
• †Dimetrodon milleri – type locality for species
• †Dimetrodon natalis – type locality for species
• †Dioonitocarpidium
• †Diplanus
• †Diplanus apochordus
• †Diplanus catatonus – type locality for species
• †Diplanus lamellatus – type locality for species
• †Diplanus rarus
• †Diplanus redactus
• File:Exhibit Museum of Natural History, Ann Arbor - IMG 9136.JPG]] †Diplocaulus – type locality for genus
• †Diplocaulus brevirostris – type locality for species
• †Diplocaulus copei – type locality for species
• †Diplocaulus magnicornis – type locality for species
• †Diplocaulus primus
• †Diplocaulus recurvatus – type locality for species
• †Diploconula
• †Diploconula biconvexa – type locality for species
• †Diplothmema
• †Diraphora
• †Discinites
• †Discotomaria
• †Discotomaria basisulcata – type locality for species
• †Discotomaria costata
• †Discotomaria dubia – type locality for species
• †Discotomaria nodosa – type locality for species
• †Discotropis – type locality for genus
• †Discotropis girtyi – type locality for species
• †Discotropis publicus
• †Discotropis sulcifer
• File:Dissorophus multicinctus cropped.jpg]] †Dissorophus – type locality for genus
• †Dissorophus multicinctus – type locality for species
• †Ditomopyge
• †Ditomopyge decurtata
• †Ditomopyge scitula
• †Divaricosta
• †Divaricosta squarrosa – type locality for species
• †Divaricosta vagabunda
• †Djemelia – tentative report
• †Docoderma – type locality for genus
• †Docoderma papillosum – type locality for species
• †Docoderma rigida
• †Domatoceras
• †Domatoceras texanum – type locality for species
• †Donaldina
• †Donaldina gracilis – type locality for species
• †Donaldina knighti – type locality for species
• †Donaldina robusta
• †Donaldina stevensana
• †Donaldina type locality for species – informal
• †Donaldospira
• †Donaldospira nodosa – type locality for species
• †Donezella
• †Driveria – type locality for genus
• †Driveria ponderosa – type locality for species
• †Dunbarites
• †Dunbarites boardmani – type locality for species
• †Dunbarites rectilaterale
• †Durhamina
• †Durhamina cordillerensis – type locality for species
• †Dvorakia
• †Dvorakia philipi – tentative report
• †Dyoros
• †Dyoros angulatus – type locality for species
• †Dyoros attenuatus
• †Dyoros auriculatus
• †Dyoros complanatus
• †Dyoros concavus – type locality for species
• †Dyoros consanguineus – type locality for species
• †Dyoros convexus
• †Dyoros endospinus – type locality for species
• †Dyoros extensiformis – type locality for species
• †Dyoros extensus – type locality for species
• †Dyoros giganteus
• †Dyoros hillanus
• †Dyoros intrepidus
• †Dyoros lateralis
• †Dyoros magnus
• †Dyoros parvus – type locality for species
• †Dyoros planiextensus – type locality for species
• †Dyoros planus
• †Dyoros quadrangulatus – type locality for species
• †Dyoros rectangulatus – type locality for species
• †Dyoros robustus
• †Dyoros solidus – type locality for species
• †Dyoros strigosus – type locality for species
• †Dyoros subliratus
• †Dyoros subquadratus
• †Dyoros tenuis – type locality for species
• †Dyoros tetragonus
• †Dyoros transversus – type locality for species
• †Dyoros vagabundus – type locality for species
• †Dyoros vulgaris
• †Dyoros wordensis – type locality for species
• †Dysoristus
• †Dysoristus lochmanae

{{Compact TOC}}

• †Echinaria
• †Echinaria moorei
• †Echinaria semipunctatus – tentative report
• †Echinauris
• †Echinauris bella – type locality for species
• †Echinauris boulei
• †Echinauris circularis
• †Echinauris crassa
• †Echinauris interrupta
• †Echinauris irregularis – type locality for species
• †Echinauris lappacea – type locality for species
• †Echinauris lateralis
• †Echinauris liumbona – type locality for species
• †Echinauris parva – type locality for species
• †Echinauris productelloides
• †Echinauris subquadrata – type locality for species
• †Echinauris venustula
• †Echinosteges
• †Echinosteges guadalupensis – type locality for species
• †Echinosteges tuberculatus – type locality for species
• †Economolopsis
• †Economolopsis anodontoides
• †Ectenoceras
• †Ectenolites
• †Ectenolites primus – type locality for species
• †Ectochoristites
• †Ectochoristites inflatus – type locality for species
• †Ectoposia – type locality for genus
• †Ectoposia grandis
• †Ectoposia wildei – type locality for species
• †Ectosteorachis
• †Ectosteorachis nitidus
• †Ectosterohachis
• †Ectosterohachis nitidus
• File:Edaphosaurus pogonias.jpg]] †Edaphosaurus – type locality for genus
• †Edaphosaurus boanerges
• †Edaphosaurus cruciger – or unidentified related form
• †Edaphosaurus microdus
• †Edaphosaurus pogonias – type locality for species
• †Edestus
• †Edestus minor
• †Edmondia
• †Edmondia bellula – type locality for species
• †Edmondia glabra
• †Edmondia rotunda – type locality for species
• †Edmondia suborbiculata – tentative report
• File:Edops craigi12DB.jpg]] †Edops
• †Edops craigi
• †Edriosteges – type locality for genus
• †Edriosteges beedei – type locality for species
• †Edriosteges compactus
• †Edriosteges medlicottianus
• †Edriosteges multispinosus – type locality for species
• †Edriosteges tenuispinosus – type locality for species
• †Eirlysia
• †Eirlysia exquisita – type locality for species
• †Eirlysia nodosa – type locality for species
• †Eirlysia reticulata
• †Elassonia
• †Elassonia micraria
• †Elassonia petila
• †Elassonia scitula
• †Elibatocrinus
• †Eliva
• †Eliva inflata
• †Eliva shumardi
• †Elivina
• †Elivina compacta – type locality for species
• †Elivina detecta
• †Elivina sulcifer
• †Ellesmeroceras
• †Elliottella
• †Elliottella minima
• †Elliottella multicostata
• †Elliottella transversalis
• †Elliottella varicostata – type locality for species
• †Elliptechinus – type locality for genus
• †Elliptechinus kiwiaster – type locality for species
• †Elversella – type locality for genus
• †Elversella rugosa
• †Elyx – tentative report
• †Emilites
• †Emilites brownwoodi – type locality for species
• †Emilites incertum
• †Emilites incertus – type locality for species
• †Empedias
• †Empedias molaris
• †Enallosia
• †Enallosia rotundovata
• †Endelocrinus
• †Endelocrinus grafordensis
• †Endelocrinus tumidus
• File:Endoceras.JPG]] †Endoceras
• †Endoceras baylorense
• †Endolobus
• †Endolobus renfroae – type locality for species
• †Endoplegma
• †Endoplegma calathus
• †Endothyra
• †Enteletes
• †Enteletes angulatus – type locality for species
• †Enteletes costellatus
• †Enteletes densus
• †Enteletes dumblei – type locality for species
• †Enteletes exiguus
• †Enteletes globosus – type locality for species
• †Enteletes hemiplicata
• †Enteletes leonardensis
• †Enteletes liumbonus – type locality for species
• †Enteletes plummeri – type locality for species
• †Enteletes rotundobesus – type locality for species
• †Enteletes stehlii – type locality for species
• †Enteletes subcircularis
• †Enteletes subnudus
• †Enteletes wolfcampensis
• †Enteletes wordensis
• †Eoasianites
• †Eoasianites smithwickensis
• †Eoasianites subhanieli
• †Eoastarte
• †Eoastarte subcircularis
• †Eocamptonectes
• †Eocamptonectes asperatus
• †Eocamptonectes papillatus
• †Eocamptonectes sculptilis
• Eocaudina
• †Eocaudina marginata
• †Eocaudina mccormacki
• †Eocaudina septaforaminalis
• †Eocaudina subhexagona
• †Eochonetes
• †Eochonetes magna – type locality for species
• †Eochonetes mucronata – type locality for species
• †Eolyttonia
• †Eolyttonia catilla
• †Eolyttonia chaotica – type locality for species
• †Eolyttonia circularis – type locality for species
• †Eolyttonia cornucopia
• †Eolyttonia diabloensis
• †Eolyttonia fredericksi – type locality for species
• †Eolyttonia gigantea – type locality for species
• †Eolyttonia parviconica
• †Eolyttonia phialiforma
• †Eolyttonia pocillata – type locality for species
• †Eolyttonia progressa – type locality for species
• †Eomartiniopsis
• †Eomartiniopsis girtyi
• †Eopteria
• †Eopteria richardsoni
• †Eoschistoceras – type locality for genus
• †Eoschistoceras strawnense – type locality for species
• †Eosyodon – type locality for genus
• †Eosyodon hudsoni – type locality for species
• †Eothalassoceras – tentative report
• †Eothinites
• †Eothinites hessensis – type locality for species
• †Eothinites planulatus
• File:Eothyris cropped.jpg]] †Eothyris – type locality for genus
• †Eothyris parkeyi – type locality for species
• †Eotiaris
• †Eotiaris connorsi – type locality for species
• †Eotiaris guadalupensis – type locality for species
• †Eowellerites
• †Eowellerites moorei – type locality for species
• †Ephippioceras
• †Ephippioceras inexpectans – type locality for species
• †Ephippioceras moinellae
• †Epiactinotrypa
• †Epiactinotrypa sera – type locality for species
• †Epimastopora
• †Epiphyton
• †Epithalassoceras
• †Epithalassoceras type locality for species – informal
• †Eridmatus
• †Eridmatus marathonensis – type locality for species
• †Eridmatus texanus
• †Erisocrinus
• †Erisocrinus propinquus – type locality for species
• †Erisocrinus trinodus – type locality for species
• †Ernestiodendron
• File:Eryops1DB.jpg]] †Eryops – type locality for genus
• †Eryops anatinus – type locality for species
• †Eryops kayi – type locality for species
• †Eryops megacephalus – type locality for species
• †Estheria
• †Etheridgella
• †Etheridgella porosa – type locality for species
• †Etoblattina
• †Etoblattina robusta – type locality for species
• †Etoblattina texana – type locality for species
• †Euchondria
• †Euchondria cooperi – type locality for species
• †Euconia – type locality for genus
• †Euconia conicus
• †Euconia etna
• †Euconia umbilicata
• †Euconospira
• †Euconospira obsoleta – type locality for species
• †Euconospira pulchra – type locality for species
• †Euconospira spiroperforata – type locality for species
• †Euconospira varizona
• †Eugonophyllum
• †Eugonophyllum huecoensis
• †Eugonophyllum johnsonii
• †Eumedlicottia
• †Eumedlicottia burckhardti – type locality for species
• †Eumedlicottia whitneyi – type locality for species
• †Eumorphoceras
• †Eumorphoceras bisulcatum
• File:Euomphalus fossil cropped.png]] †Euomphalus
• †Euomphalus cornudanus – type locality for species
• †Euomphalus glabribasis
• †Euomphalus kaibabensis
• †Euomphalus levicarinatus – type locality for species
• †Euomphalus pernodosus
• †Euonychocrinus
• †Euonychocrinus subservire – type locality for species
• †Euphemites
• †Euphemites aequisulcatus
• †Euphemites batteni – type locality for species
• †Euphemites blaneyanus
• †Euphemites circumcostatus
• †Euphemites crenulatus – type locality for species
• †Euphemites exquisitus – type locality for species
• †Euphemites imperator – type locality for species
• †Euphemites kingi – type locality for species
• †Euphemites luxuriosus – type locality for species
• †Euphemites nodocarinatus
• †Euphemites sparciliratus – type locality for species
• †Euphemites vittatus
• †Euphemitopsis
• †Euphemitopsis multinodosa – type locality for species
• †Euphemitopsis paucinodosus
• †Eupleuroceras
• †Eupleuroceras bellulum
• †Eurylepidoides – type locality for genus
• †Eurylepidoides socialis – type locality for species
• †Euryodus – type locality for genus
• †Euryodus primus – type locality for species
• †Euryphyllum – tentative report
• †Euryphyllum profundum – type locality for species
• †Euryphyllum robustum – type locality for species
• †Evolsonia
• †Exaulipora
• †Exaulipora permica
• †Exovasa – type locality for genus
• †Exovasa cystauletoides – type locality for species

{{Compact TOC}}

• †Falsiamplexus – type locality for genus
• †Falsiamplexus delicata
• †Falsiamplexus elongatus – type locality for species
• †Falsiamplexus flexibilis – type locality for species
• †Falsiamplexus reductus – type locality for species
• †Fascicosta
• †Fascicosta bella
• †Fascicosta elongata
• †Fascicosta longaeva
• †Fayettevillea
• †Fenestella
• †Fenestella amplia
• †Fenestella archimediformis
• †Fenestella capitanensis
• †Fenestella firmior
• †Fenestella girtyi
• †Fenestella guadalupensis – type locality for species
• †Fenestella hilli
• †Fenestella popeana
• †Fenestella schucherti – or unidentified comparable form
• †Fenestella spinulifera
• †Fenestella texana – type locality for species
• †Fenestrellina
• †Ferganispira
• †Ferganispira acteonina – type locality for species
• †Fimbrinia
• †Fimbrinia cristatotuberculata
• †Fimbrinia ovata
• †Fimbrinia plummeri
• †Finkelnburgia
• †Finkelnburgia crassicostellata – or unidentified comparable form
• †Finkelnburgia cullisonia – or unidentified comparable form
• †Fissispongia
• †Fissispongia jacksboroensis
• †Fistulipora
• †Fistulipora guadalupae – type locality for species
• †Fistulipora guadalupensis
• †Flexuospiculata – type locality for genus
• †Flexuospiculata hexactina – type locality for species
• †Foordiceras
• †Foordiceras mammiferum – type locality for species
• †Foordiceras ornatissimum – type locality for species
• †Fransonia
• †Fransonia wyomingensis
• †Fusella
• †Fusella llanoensis – type locality for species
• †Fusiella
• File:Fusulinid limestone, Upper Pennsylvanian; Elk County KS.jpg †Fusulina – report made of unidentified related form or using admittedly obsolete nomenclature
• †Fusulina elongata – type locality for species

{{Compact TOC}}

• †Gasconadia
• †Gasconadia putilla
• †Gastrioceras
• †Gastrioceras montgomeryense
• †Gastrioceras occidentale
• †Geinitzina
• †Genevievella
• †Genevievella spinox
• †Geniculifera
• †Geniculifera brevicula – type locality for species
• †Geragnostus
• File:Gerobatrachus NT.jpg]] †Gerobatrachus – type locality for genus
• †Gerobatrachus hottoni – type locality for species
• †Gervillia – report made of unidentified related form or using admittedly obsolete nomenclature
• †Gervillia longa
• †Geyerella
• †Geyerella americana – type locality for species
• †Geyerella hessi – type locality for species
• †Geyerella inexpectata – type locality for species
• †Geyerella kingorum
• †Gigantonoclea
• †Gigantopteris
• †Gigantopteris americana
• †Girtycoelia
• †Girtycoelia typica
• †Girtyella
• †Girtyella cedarensis – or unidentified related form
• †Girtyoceras
• †Girtyoceras hamiltonense
• †Girtyoceras meslerianum
• †Girtyocoelia
• †Girtyocoelia beedei
• †Girtypecten
• †Girtypecten sublaqueatus
• †Girtypora
• †Girtypora constricta – type locality for species
• †Girtypora hillana – type locality for species
• †Girtypora ocellata
• †Girtypora terminalis
• †Girtypora vittata
• †Girtyporina
• †Girtyporina incrustans – type locality for species
• †Girtyspira
• †Girtyspira minuta
• †Girtyspira yodai – type locality for species
• †Girvanella
• †Glabrocingulum
• †Glabrocingulum alveozonum
• †Glabrocingulum coronatum
• †Glabrocingulum diablo
• †Glabrocingulum grayvillense
• †Glabrocingulum lupus
• †Glabrocingulum texanum – type locality for species
• †Glaphyrites
• †Glaphyrites angulatus
• †Glaphyrites anguloumbilicatus
• †Glaphyrites deciensis – type locality for species
• †Glaphyrites hyattianus
• †Glaphyrites kansasensis
• †Glaphyrites millsi
• †Glaphyrites modestus – type locality for species
• †Glaphyrites raymondi
• †Glaphyrites ruzencevi
• †Glaphyrites welleri
• †Glassoceras
• †Glassoceras normani – type locality for species
• †Glaucosaurus – type locality for genus
• †Glaucosaurus megalops – type locality for species
• File:Glikmanius1DB.jpg]] †Glikmanius
• †Glikmanius occidentalis
• †Globivalvulina
• †Glossothyropsis
• †Glossothyropsis carinata
• †Glossothyropsis cryptacanthoides
• †Glossothyropsis immatura
• †Glossothyropsis juvenis
• †Glossothyropsis polita
• †Glossothyropsis rectangulata – type locality for species
• †Glossothyropsis robusta
• †Glossothyropsis sinuata
• †Glossothyropsis superba – type locality for species
• †Gloverilima
• †Gloverilima pratti
• †Glyptagnostus
• †Glyptorthis
• †Glyptorthis maquoketensis
• †Glyptospira
• †Glyptospira cingulata – type locality for species
• †Glyptospira huecoensis – type locality for species
• †Glyptospira quadriserrata – type locality for species
• †Glyptospira tricostata
• †Glyptospira turrita
• †Glyptosteges
• †Glyptosteges angustus – type locality for species
• †Glyptosteges insculptus
• †Glyptosteges intricatus – type locality for species
• †Glyptosteges sulcatus
• †Glyptotomaria – type locality for genus
• †Glyptotomaria apiarium – type locality for species
• †Glyptotomaria marginata – type locality for species
• †Glyptotomaria pistra – type locality for species
• †Gnamptorhynchos
• †Gnamptorhynchos prayi
• File:GnathorhizaDB.jpg]] †Gnathorhiza
• †Gnathorhiza dikeloda – type locality for species
• †Gnathorhiza serrata
• †Gomphostrobus
• †Gomphostrobus bifidus
• †Goniarina
• †Goniarina appeli – type locality for species
• †Goniarina diabloensis
• †Goniarina futilis
• †Goniarina magniextensa
• †Goniarina permiana
• †Goniarina pyelodes
• †Goniarina striata
• †Goniasma
• †Goniasma lasallense
• File:Goniatitidae - Goniatites species.JPG]] †Goniatites
• †Goniatites eganensis
• †Goniatites multiliratus
• †Goniocephalus – type locality for genus
• †Goniocephalus willistoni – type locality for species
• †Goniocladia
• †Goniocladia americana
• †Gonioloboceras
• †Gonioloboceras bridgeportense – type locality for species
• †Gonioloboceras goniolobus
• †Gonioloboceras gracellenae
• †Gonioloboceras parrishi
• †Gonioloboceras welleri
• †Gorgodon – type locality for genus
• †Gorgodon minutus – type locality for species
• †Gosseletina
• †Gosseletina permiana – type locality for species
• †Grammatodon
• †Grammatodon politus
• †Grandaurispina
• †Grandaurispina bella – type locality for species
• †Grandaurispina belliformis
• †Grandaurispina crassa
• †Grandaurispina elongata
• †Grandaurispina gibbosa – type locality for species
• †Grandaurispina kingorum – type locality for species
• †Grandaurispina meekana
• †Grandaurispina rara
• †Grandaurispina rudis
• †Grandaurispina signata – type locality for species
• †Grandaurispina undulata
• †Grandaurispina vaga – type locality for species
• †Graphiocrinus
• †Graphiocrinus bridgeportensis – type locality for species
• File:RugosaOrdovician.jpg]] †Grewingkia
• †Grewingkia crassa
• †Grewingkia franklinensis
• †Grewingkia robusta
• †Griffithidella
• †Griffithidella alternata
• †Griffithidella doris
• †Gryphochiton
• †Gryphochiton girtyi – type locality for species
• †Guadalupelosia
• †Guadalupelosia inexpectans
• †Guadalupia
• †Guadalupia auricula – type locality for species
• †Guadalupia cupulosa – type locality for species
• †Guadalupia favosa – type locality for species
• †Guadalupia lepta – type locality for species
• †Guadalupia microcamera – type locality for species
• †Guadalupia minuta – type locality for species
• †Guadalupia ramescens – type locality for species
• †Guadalupia vasa – type locality for species
• †Guadalupia zitteliana
• †Guizhoupecten
• †Guizhoupecten cheni
• †Gypospirifer – type locality for genus
• †Gypospirifer anancites – type locality for species
• File:Spiriferidae - Gypospirifer condor.JPG]] †Gypospirifer condor
• †Gypospirifer infraplicus
• †Gypospirifer nelsoni

{{Compact TOC}}

• †Hadropipetta
• †Hadropipetta ancora
• †Hamburgia
• †Hamburgia chappelensis – type locality for species
• †Hamburgia texana
• †Haplistion
• †Haplistion aeluroglossa – type locality for species
• †Haplistion megalochetus – type locality for species
• †Haplistion skinneri – or unidentified comparable form
• †Hayasakapecten
• †Hayasakapecten americanus
• †Healdia
• †Healdia unispinosa – type locality for species
• †Healdia vidriensis – type locality for species
• †Hebertella
• †Hebertella occidentalis
• †Hebetorthoceras
• †Hebetorthoceras brokenarrowense
• †Helicoconchus – type locality for genus
• †Helicoconchus elongatus – type locality for species
• File:Helicoprion ferrieri fossil shark jaw, Brewster County TX.jpg]] †Helicoprion
• †Helicoprion davisii
• †Heliospongia
• †Heliospongia excavata
• †Heliospongia ramosa
• †Heliospongia vokesi
• †Helminthochiton
• †Helminthochiton simplex
• †Hemileurus
• †Hemileurus runcinatus
• †Hemiliroceras
• †Hemiliroceras reticulatum
• †Hemizyga
• File:Hercosestria040111.jpg]] †Hercosestria
• †Hercosestria cribrosa – type locality for species
• †Hercosestria hystricula
• †Hercosestria laevis
• †Hercosia
• †Hercosia delicata
• †Hercosia uddeni – type locality for species
• †Heritschioides
• †Hermosanema
• †Hermosanema carinatum – type locality for species
• †Hesperiella
• †Hesperiella permianus – type locality for species
• †Hesperiella wordensis
• †Heteralosia
• †Heteralosia hystricula – type locality for species
• †Heteralosia magnispina
• †Heteralosia paucispinosa
• †Heteralosia tenuispina
• †Heteralosia vidriensis
• †Heteraria
• †Heteraria blakemorei
• †Heterelasma
• †Heterelasma angulatum
• †Heterelasma concavum – type locality for species
• †Heterelasma contortum
• †Heterelasma geniculatum
• †Heterelasma gibbosum – type locality for species
• †Heterelasma glansfagea – type locality for species
• †Heterelasma lenticularia
• †Heterelasma magnum
• †Heterelasma pentagonum – type locality for species
• †Heterelasma quadratum
• †Heterelasma shumardianum
• †Heterelasma solidum – type locality for species
• †Heterelasma sulciplicatum
• †Heterelasma venustulum
• †Heteropecten
• †Heteropecten vanvleeti
• †Heteroschizodus – type locality for genus
• †Heteroschizodus macomoides – type locality for species
• †Hexirregularia – type locality for genus
• †Hexirregularia nana – type locality for species
• †Hiscobeccus – tentative report
• †Hiscobeccus capax
• †Hoffmannia – report made of unidentified related form or using admittedly obsolete nomenclature
• †Hoffmannia fisheri – type locality for species
• †Holcacephalus
• †Holcacephalus tenerus
• †Holosia – type locality for genus
• †Holosia ovalis – type locality for species
• †Holosia ovoidea
• †Holosia regularis
• †Holotricharina – type locality for genus
• †Holotricharina hirsuta – type locality for species
• †Holotricharina sparsa – type locality for species
• †Homagnostus
• †Hormotoma
• †Hormotoma moderata – type locality for species
• †Hustedia
• †Hustedia ampullacea – type locality for species
• †Hustedia bipartita
• †Hustedia catella – type locality for species
• †Hustedia cepacea
• †Hustedia citeria
• †Hustedia compressa
• †Hustedia connorsi – type locality for species
• †Hustedia consuta – type locality for species
• †Hustedia crepax
• †Hustedia culcitula
• †Hustedia cuneata – type locality for species
• †Hustedia decollatensis
• †Hustedia demissa
• †Hustedia glomerosa
• †Hustedia hapala
• †Hustedia hessensis – type locality for species
• †Hustedia huecoensis – type locality for species
• †Hustedia inconspicua
• †Hustedia lusca – type locality for species
• †Hustedia meekana
• †Hustedia mormoni
• †Hustedia mormonii
• †Hustedia narinosa
• †Hustedia opsia
• †Hustedia papillata – type locality for species
• †Hustedia pugilla – type locality for species
• †Hustedia pusilla
• †Hustedia rupinata
• †Hustedia samiata
• †Hustedia sculptilis – type locality for species
• †Hustedia spicata – type locality for species
• †Hustedia stataria
• †Hustedia texana
• †Hustedia tomea
• †Hustedia trisecta
• †Hustedia trita
• File:Hybodus NT.jpg]] †Hybodus
• †Hybodus copei – type locality for species
• †Hypergonia
• †Hypergonia percostata
• †Hypopsia
• †Hypopsia versuta
• †Hypselentoma
• †Hypselentoma ornata – type locality for species
• †Hypseloconus
• †Hypsiptycha
• †Hypsiptycha argenturbicum
• †Hypsiptycha neenah
• †Hystriculina
• †Hystriculina convexa
• †Hystriculina dugoutensis – type locality for species
• †Hystriculina minima
• †Hystriculina pumila
• †Hystriculina sulcata – type locality for species
• †Hystriculina ventroplana
• †Hystriculina wabashensis
• †Hystricurus

{{Compact TOC}}

• †Ianthinopsis
• †Ianthinopsis medialis
• †Icriodus
• †Icriodus eolatericrescens
• †Icriodus gravesi
• †Ideliopsis – type locality for genus
• †Ideliopsis ovalis – type locality for species
• †Illusioluidia – type locality for genus
• †Illusioluidia teneryi – type locality for species
• †Incisimura – type locality for genus
• †Incisimura bella – type locality for species
• †Incrustospongia – type locality for genus
• †Incrustospongia meandrica – type locality for species
• †Institella
• †Institella leonardensis – type locality for species
• †Insulipora
• †Insulipora elegans
• †Iotina
• †Iotina minuta
• †Isacrodus – type locality for genus
• †Isacrodus marthae – type locality for species
• †Ischnoptygma
• †Ischnoptygma archibaldi – type locality for species
• †Ischnoptygma valentinei – type locality for species
• File:Isodectes obtusus.jpg]] †Isodectes
• †Isodectes obtusus – type locality for species
• †Isogramma
• †Isogramma concavum
• †Isogramma diabloense
• †Isogramma lobatum
• †Isogramma millepunctata
• †Isogramma vidriense
• †Isotrypa
• †Ivanovia

{{Compact TOC}}

• File:Janassa bituminosa.jpg (top and left)]] †Janassa
• †Jeffersonia
• †Jeffersonia granosa
• †Jereina – type locality for genus
• †Jereina cylindrica – type locality for species
• †Jereina ramosa – type locality for species
• †Jinogondolella
• †Jinogondolella aserrata
• †Jinogondolella gladirobusta
• †Jinogondolella nankingensis
• †Jinogondolella postserrata
• †Juresania
• †Juresanites
• †Juresanites colemanensis – type locality for species

{{Compact TOC}}

• †Kahneria – type locality for genus
• †Kahneria seltina – type locality for species
• †Kaibabella
• †Kaibabella basilica
• †Kalodomia
• †Kalodomia rugosa
• †Kargalites
• †Kargalites subquadratum
• †Kargalites subquadratus – type locality for species
• †Kargalites type locality for species – informal
• †Kaskia
• †Kaskia rarus
• †Kellettina
• †Kellettina vidriensis – type locality for species
• †Kindlella – type locality for genus
• †Kindlella centrinoda – type locality for species
• †Kindlella fissiloba – type locality for species
• †Kingopora – tentative report
• †Kingstonia
• †Kingstonia pontotocensis
• †Kinsabia
• †Kinsabia variegata
• †Kirkbya
• †Knightina – tentative report
• †Knightina cuestaforma – type locality for species
• †Knightina macknighti – type locality for species
• †Knightites
• †Knightites maximus – type locality for species
• †Knightites medius – type locality for species
• †Knightoceras
• †Knightoceras kempae – type locality for species
• †Knoxosaurus – type locality for genus
• †Knoxosaurus niteckii – type locality for species
• †Kochiproductus
• †Kochiproductus elongatus
• †Kochiproductus occidentalis – type locality for species
• †Kochiproductus peruvianus
• †Kochiproductus primitivus – type locality for species
• †Kochiproductus quadratus
• †Kochiproductus victorioensis – type locality for species
• †Kockelella
• †Kockelella ortus
• †Komia
• †Komiella – report made of unidentified related form or using admittedly obsolete nomenclature
• †Komiella ostiolata
• †Kormagnostus
• †Kormagnostus seclusus
• †Kozlowskia
• †Kozlowskia alata
• †Kozlowskia anterosulcata
• †Kozlowskia capaci
• †Kozlowskia kingi
• †Kozlowskia nasuta
• †Kozlowskia splendens
• †Kozlowskia subsphaeroidalis
• †Kutorginella
• †Kutorginella dartoni – type locality for species
• †Kutorginella lasallensis
• †Kutorginella robusta
• †Kutorginella sullivanensis
• †Kutorginella uddeni
• †Kutorginella umbonata

{{Compact TOC}}

• †Labidosaurikos
• †Labidosaurikos meachami – type locality for species
• File:Labidosaurus.jpg]] †Labidosaurus
• †Labidosaurus barkeri
• †Labidosaurus hamatus – type locality for species
• †Labridens
• †Labridens shupei
• †Lacunospira
• †Lacunospira alta – type locality for species
• †Lacunospira altsia
• †Lacunospira lirata – type locality for species
• †Lamarodus – type locality for genus{{cite journal |author1=Alexander O. Ivanov |author2=Merlynd K. Nestell |author3=Galina P. Nestell |author4=Gorden L. Bell Jr. |year=2019 |title=New fish assemblages from the Middle Permian from the Guadalupe Mountains, West Texas, USA |journal=Palaeoworld |volume=29 |issue=2 |pages=239–256 |doi=10.1016/j.palwor.2018.10.003 |s2cid=134496257 }}
• †Lamarodus triangulus – type locality for species
• †Lambeoceras
• †Lambeoceras rotundum
• †Lamellosia
• †Lamellosia lamellosa
• †Lamellospira
• †Lamellospira cincta – type locality for species
• †Lamellospira conica
• †Lamellospira spinosa – type locality for species
• †Langepis – type locality for genus
• †Langepis campbelli
• †Laudonocrinus
• †Laudonocrinus subsinuatus
• †Lawnia – type locality for genus
• †Lawnia taylorensis – type locality for species
• †Lebachia
• †Lecanospira – type locality for genus
• †Lecanospira lecanospiroides – type locality for species
• †Lecanospira sanctisabae
• †Lecythiocrinus
• †Leella
• †Leella bellula – or unidentified comparable form
• †Leioclema
• †Leioclema dozierense – type locality for species
• †Leioclema shumardi
• †Leiorhynchoidea
• †Leiorhynchoidea amygdaloidea – type locality for species
• †Leiorhynchoidea rotundidorsa
• †Leiorhynchoidea scelesta
• †Leiorhynchoidea sublamellosa
• †Leiorhynchoidea sulcata
• †Leiorhynchus
• †Leiorhynchus bisulcatum
• †Leiorhynchus nobilis
• †Leiostegium
• †Lekiskochiton – type locality for genus
• †Lekiskochiton fornicis – type locality for species
• †Lemonea
• †Lemonea cylindrica
• †Lemonea digitata – type locality for species
• †Lemonea simplex – type locality for species
• †Leonardophyllum
• †Leonardophyllum kingi – type locality for species
• †Lepetopsis
• †Lepetopsis capitanensis – type locality for species
• †Lepetopsis haworthi – type locality for species
• †Lepidocrania – type locality for genus
• †Lepidocrania sparsispinosa – type locality for species
• †Lepidocrania sublamellosa
• †Lepidocrania tardispinosa – type locality for species
• †Lepidocyclus
• †Lepidocyclus laddi
• †Lepidocyclus manniensis
• †Lepidophyllum
• †Lepidospirifer
• †Lepidospirifer angulatus – type locality for species
• †Lepidospirifer costellus – type locality for species
• †Lepidospirifer demissus – type locality for species
• †Lepidospirifer inferus
• †Leptagonia
• †Leptalosia
• †Leptalosia ovalis
• †Leptodesma
• †Leptodesma falcata
• †Leptodesma gouldii
• †Leptodesma guadalupensis
• †Leptodus
• †Leptodus americana
• †Leptodus guadalupensis – type locality for species
• †Leptomphalus
• †Leptomphalus micidus – type locality for species
• †Leptoplastides
• †Leptoptygma
• †Leptoptygma subtilistriatum
• †Leptotygria
• †Lercaritubus
• †Lercaritubus problematicus
• †Lesueurilla
• †Leurosina – type locality for genus
• †Leurosina delicata
• †Leurosina lata – type locality for species
• †Leurosina marginata
• †Leurosina serratoseptata
• †Leurosina sinesulca
• †Leurosina vulgarica
• File:Breviconic ellesmeroceridan.svg]] †Levisoceras
• †Levisoceras contractum – type locality for species
• †Levizygopleura
• †Levizygopleura williamsi
• †Lichenaria
• †Limatulina – report made of unidentified related form or using admittedly obsolete nomenclature
• †Limatulina striaticostata – type locality for species
• †Limbella
• †Limbella costata
• †Limbella costellata
• †Limbella limbata – type locality for species
• †Limbella victorioensis
• †Limbella wolfcampensis – type locality for species
• †Lindostromella
• †Lindostromella patula
• †Lindstroemia – report made of unidentified related form or using admittedly obsolete nomenclature
• †Lindstroemia cylindrica – type locality for species
• †Lindstroemia permiana
• Lingula
• †Linipalus
• †Linipalus magnispinus
• †Linoproductus
• †Linoproductus cora
• †Linoproductus delicatus
• †Linoproductus meniscus
• †Linoproductus nasutus – type locality for species
• †Linoproductus phosphaticus
• †Linoproductus prattenianus
• †Linoproductus waagenianus
• †Liosotella
• †Liosotella costata – type locality for species
• †Liosotella irregularis – type locality for species
• †Liosotella opima – type locality for species
• †Liosotella parva – type locality for species
• †Liosotella popei – type locality for species
• †Liosotella rotunda
• †Liosotella spinumbona
• †Liosotella tetragonalis – type locality for species
• †Liosotella texana
• †Liosotella wordensis – type locality for species
• †Liraria
• †Liraria lirata
• †Lirellaria
• †Lirellaria costellata
• †Lirellaria crassa
• †Lirellaria diabloensis
• †Liroceras
• †Liroceras globulare
• †Lissochonetes
• †Lissochonetes geinitzianus
• †Lissochonetes parvisulcatus
• †Lithostrotionella – tentative report
• †Llanoaspis
• †Llanoaspis virginica
• †Llanoceras – type locality for genus
• †Llanoceras gracile – type locality for species
• †Llanocystis – type locality for genus
• †Llanocystis wilbernsensis – type locality for species
• †Lobatannularia
• †Lophonema
• †Lophophyllidium
• †Lophophyllidium absitum – type locality for species
• †Lophophyllidium compressum
• †Lophophyllidium confertum – or unidentified comparable form
• †Lophophyllidium cyathaxoniaforme – type locality for species
• †Lophophyllidium distortum
• †Lophophyllidium dunbari
• †Lophophyllidium erugum – type locality for species
• †Lophophyllidium lanosum – type locality for species
• †Lophophyllidium magnocolumnare – type locality for species
• †Lophophyllidium plummeri – type locality for species
• †Lophophyllidium profundum
• †Lophophyllidium proliferum
• †Lophophyllidium radicosum
• †Lophophyllidium skinneri – type locality for species
• †Lophophyllidium texanum
• †Lophophyllidium vallum – type locality for species
• †Lophophyllidium vidriensis – type locality for species
• †Lophophyllidium westii
• †Lophophyllidium wewokanum
• †Lophotichium
• †Lophotichium dugoutense – type locality for species
• †Lophotichium rotundiseptum – type locality for species
• †Lophotichium simulatum – type locality for species
• †Lowenstamia – type locality for genus
• †Lowenstamia ampla
• †Lowenstamia texana – type locality for species
• †Loxonema – report made of unidentified related form or using admittedly obsolete nomenclature
• †Loxonema inconspicuum – type locality for species
• †Loxophragmus – type locality for genus
• †Loxophragmus ellipticus – type locality for species
• †Luederia – type locality for genus
• †Luederia kempi – type locality for species
• †Luterospongia – type locality for genus
• †Luterospongia texana – type locality for species
• †Lyroschizodus
• †Lyroschizodus oklahomensis
• †Lyroschizodus orbicularis – type locality for species
• File:Lysorophus.jpg showing speculative egg-coiling behavior]] †Lysorophus
• †Lysorophus tricarinatus
• †Lytvolasma
• †Lytvolasma aucta – type locality for species

{{Compact TOC}}

• †Mackinneyella
• †Mackinneyella hinganensis – or unidentified related form
• †Mackinneyella praepluriformis – or unidentified comparable form
• †Mackinneyella robustiformis
• †Macluritella
• †Macluritella gyroceras
• †Macluritella uniangulata
• †Macrochilina – report made of unidentified related form or using admittedly obsolete nomenclature
• †Macrochilina modesta – type locality for species
• †Macrodontacanthus – type locality for genus
• †Macrodontacanthus kingi – type locality for species
• †Macroporella
• †Macroporella verticillata – type locality for species
• †Madarosia
• †Madarosia anterolamellata
• †Madarosia pentagona
• †Maeandrostia
• †Maeandrostia kansasensis
• †Manipora
• †Manipora amicarum
• †Manipora magna – type locality for species
• †Manipora trapezoidalis – type locality for species
• †Manzanospira
• †Manzanospira carinata
• †Manzanospira manzanicum
• †Manzanospira wordensis – type locality for species
• †Marathonites
• †Marathonites jpsmithi – type locality for species
• †Marathonites moorei – type locality for species
• †Marathonites vidriensis – type locality for species
• †Marginatia
• †Marginifera
• †Marginifera cristobalensis
• †Marginifera manzanica
• †Marginifera opima
• †Marginifera texana
• †Martinia
• †Martinia causaria
• †Martinia cruenta
• †Martinia exigua
• †Martinia fucina
• †Martinia miranda – type locality for species
• †Martinia nealranchensis
• †Martinia rhomboidalis
• †Martinia wolfcampensis – type locality for species
• †Mastersonia – type locality for genus
• †Mastersonia driverensis – type locality for species
• †Mckittrickella – type locality for genus
• †Mckittrickella pratti – type locality for species
• †Mcqueenoceras
• †Meandrostia
• †Meandrostia tortacloaca
• †Medlicottia
• †Medlicottia arroyoensis – type locality for species
• †Medlicottia chozaensis – type locality for species
• †Medlicottia copei – type locality for species
• †Medlicottia costellifera – type locality for species
• †Medlicottia kingorum – type locality for species
• †Medlicottia milleri – type locality for species
• †Meekella
• †Meekella angustiplicata
• †Meekella attenuata
• †Meekella calathica – type locality for species
• †Meekella caperata – type locality for species
• †Meekella circularis
• †Meekella enormis – type locality for species
• †Meekella hessensis – type locality for species
• †Meekella intermedia
• †Meekella magnifica – type locality for species
• †Meekella mexicana
• †Meekella multilirata – type locality for species
• †Meekella occidentalis – type locality for species
• †Meekella prionota – type locality for species
• †Meekella skenoides
• †Meekella striaticostata
• †Meekella striatocostata
• †Meekella texana – type locality for species
• †Meekopora
• †Meekospira
• †Meekospira choctawensis
• †Meekospira mimiae – type locality for species
• †Meekospira peracuta
• †Megactenopetalus
• †Megactenopetalus kaibabanus
• †Megousia
• †Megousia auriculata
• †Megousia definita – type locality for species
• †Megousia flexuosa
• †Megousia girtyi – type locality for species
• †Megousia mucronata
• †Megousia umbonata
• †Megousia waageniana – type locality for species
• †Merista
• †Merista maccullochensis – type locality for species
• †Mesolobus
• File:Metacoceras discoideum 01.jpg]] †Metacoceras
• †Metacoceras baylorense – type locality for species
• †Metacoceras cheneyi – type locality for species
• †Metacoceras inconspicuum
• †Metacrimites
• †Metacrimites adamsi – type locality for species
• †Metacrimites defordi – type locality for species
• †Metacrimites marathonensis – type locality for species
• †Metacrimites newelli – type locality for species
• †Metaindocrinus
• †Metaindocrinus cooperi – type locality for species
• †Metalegoceras
• †Metalegoceras aricki – type locality for species
• †Metalegoceras baylorense – type locality for species
• †Metalegoceras schucherti – type locality for species
• †Metaperrinites
• †Metaperrinites cumminsi – type locality for species
• †Metaperrinites vicinus
• †Metapronorites
• †Metapronorites pseudotimorensis
• †Metarmosaurus – type locality for genus
• †Metarmosaurus fossatus – type locality for species
• File:Meteoraspis cropped.png]] †Meteoraspis
• †Meteoraspis metra
• †Metoptoma
• †Metoptoma texana – type locality for species
• †Metriolepis – type locality for genus
• †Metriolepis carotica
• †Metriolepis diabloensis
• †Metriolepis exserta
• †Metriolepis irenae
• †Metriolepis larina
• †Metriolepis nabis
• †Metriolepis pedicosa
• †Metriolepis pinea
• †Metriolepis pulvinata – type locality for species
• †Metriolepis scrupea
• †Metriolepis tegulata – type locality for species
• †Metriolepis ziczac – type locality for species
• †Mexicoceras
• †Mexicoceras guadalupense – type locality for species
• †Michelinoceras – tentative report
• †Michelinoceras guadalupense – type locality for species
• †Micraphelia
• †Micraphelia pumilis
• †Micraphelia scitula
• †Micraphelia subalata
• File:Micraroter.jpg]] †Micraroter – tentative report
• †Micraroter erythrogeios
• †Microantyx
• †Microantyx botoni
• †Microantyx mudgei
• †Microbaltoceras – type locality for genus
• †Microbaltoceras minore – type locality for species
• †Microdoma
• †Microdoma conicum
• †Microdoma gavinae
• †Microptychis
• †Microptychis insolita – type locality for species
• †Microstaura – type locality for genus
• †Microstaura doliolum
• †Microstaurella – type locality for genus
• †Microstaurella minima – type locality for species
• †Microstaurella parva – type locality for species
• †Millerella
• †Millerella marblensis
• †Millkoninckioceras
• †Millkoninckioceras bibbi
• †Miltonella – type locality for genus
• †Miltonella shupei – type locality for species
• †Minammodytes
• †Minilya
• †Minilya girtyi
• †Minispongia
• †Minispongia constricta – type locality for species
• †Mizzia
• †Mizzia velebitana
• †Monaxoradiata – type locality for genus
• †Monaxoradiata lamina – type locality for species
• †Monodiexodina
• †Monodiexodina bispatulata
• †Monodiexodina linearis – tentative report
• †Monophyllum
• †Monophyllum cassum – type locality for species
• †Monotis – tentative report
• †Moorefieldella
• †Mooreoceras
• †Mooreoceras giganteum – type locality for species
• †Mooreocrinus
• †Mooreocrinus magdalensis – type locality for species
• †Moreauoceras
• †Moreauoceras milleri
• †Morrowcrinus – tentative report
• †Mourlonia
• †Multistella – type locality for genus
• †Multistella porosa
• †Murchisonia
• †Murchisonia gouldi
• †Muriceras – type locality for genus
• †Muriceras anomalum – type locality for species
• †Muriceras curviseptatum – type locality for species
• †Muriceras gracile – type locality for species
• †Muriceras hebetum – type locality for species
• †Muriceras micromurus – type locality for species
• †Muriceras moderatum – type locality for species
• †Muriceras murus – type locality for species
• †Myalina
• †Myalina acutirostris – type locality for species
• †Myalina aviculoides
• †Myalina copei – type locality for species
• †Myalina lamellosa – type locality for species
• †Myalina permiana
• †Myalina plicata – type locality for species
• †Myalina pliopetina – type locality for species
• †Myalina recta – tentative report
• †Myalina squamosa – tentative report
• †Myalina wyomingensis – tentative report
• File:Mycterosaurus.jpg]] †Mycterosaurus – type locality for genus
• †Mycterosaurus longiceps – type locality for species
• †Myoconcha
• †Myoconcha costulata – type locality for species

{{Compact TOC}}

• †Nabespecha
• †Nabespecha leonardia – type locality for species
• †Nanobamus – type locality for genus
• †Nanobamus macrorhinus – type locality for species
• †Nasocephalus
• †Nasocephalus flabellatus
• †Nasocephalus nasutus
• †Naticopsis
• †Naticopsis judithae
• †Naticopsis remex
• †Naticopsis shumardi – tentative report
• †Naticopsis transversa – type locality for species
• †Neilsonia
• †Neilsonia laticincta
• File:Neldasaurus wrightae.jpg]] †Neldasaurus
• †Neldasaurus wrightae
• †Nemejcopteris
• †Neoaganides
• †Neoaganides grahamensis
• †Neocalamites – or unidentified comparable form
• †Neochonetes
• †Neochonetes costellata – type locality for species
• †Neochonetes granulifer
• †Neochonetes liratus
• †Neochonetes magna
• †Neochonetes meekanus – tentative report
• †Neochonetes parvus
• †Neochonetes transversalis
• †Neochonetes victoriana – type locality for species
• †Neocrimites
• †Neocrimites defordi
• †Neocrimites type locality for species – informal
• †Neodimorphoceras
• †Neodimorphoceras lenticulare
• †Neodimorphoceras oklahomae
• †Neodimorphoceras plummerae – type locality for species
• †Neodimorphoceras texanum
• †Neogeoceras
• †Neogeoceras girtyi
• †Neoglyphioceras
• †Neoglyphioceras entogonum
• †Neoicoceras
• †Neokoninckophyllum
• †Neokoninckophyllum cooperi – type locality for species
• †Neokoninckophyllum deciensis – type locality for species
• †Neokoninckophyllum dunbari – type locality for species
• †Neophricadothyris
• †Neophricadothyris conara – type locality for species
• †Neophricadothyris crassibecca – type locality for species
• †Neophricadothyris transversa
• †Neopopanoceras
• †Neopopanoceras bowmani – type locality for species
• †Neopronorites
• †Neopronorites bakeri – type locality for species
• †Neopronorites boesei
• †Neoshumardites
• †Neoshumardites gaptankensis
• File:Trigonotretidae - Neospirifer ravana.JPG]] †Neospirifer
• †Neospirifer amphigyus – type locality for species
• †Neospirifer apothescelus – type locality for species
• †Neospirifer bakeri – type locality for species
• †Neospirifer cameratus – tentative report
• †Neospirifer formulosus
• †Neospirifer huecoensis – type locality for species
• †Neospirifer kansasensis
• †Neospirifer mansuetus
• †Neospirifer neali
• †Neospirifer notialis
• †Neospirifer placidus
• †Neospirifer t. – informal
• †Neospirifer triplicatus
• †Neospirifer venezuelensis
• †Neotryplasma
• †Neozeacrinus
• †Neozeacrinus uddeni – type locality for species
• File:Neuropteris PAMuseum.jpg]] †Neuropteris
• †Neuropteris cordata – tentative report
• †Neuropteris lindahli – or unidentified comparable form
• †Newellites
• †Newellites richardsoni – type locality for species
• †Newellospongia – type locality for genus
• †Newellospongia perforata – type locality for species
• †Nicollidina
• †Nicollidina remscheidensis
• †Nielsenoceras
• †Nielsenoceras skinneri – type locality for species
• †Niviconia – type locality for genus
• †Niviconia abrupta
• †Niviconia globosa
• †Norwoodia
• †Norwoodia quadrangularis
• †Nothopindax
• †Nothopindax egregius
• †Notothyris
• †Notothyris gillilandensis
• †Notothyris planiplicata
• †Notothyris venusta – type locality for species
• †Novaculapermia – type locality for genus
• †Novaculapermia boydi – type locality for species
• †Novlepatella
• †Novlepatella beedei – type locality for species
• †Novlepatella parrishi
• †Novlepatella patella – type locality for species
• †Novoameura
• †Novoameura vitrumons – type locality for species
• †Nucleospira
• †Nucleospira cunctata
• File: Nuculidae - Nucula piacentina.jpg]] Nucula – report made of unidentified related form or using admittedly obsolete nomenclature
• Nuculana
• †Nuculavus
• †Nuculavus levatiformis
• †Nuculavus okawensis – or unidentified related form
• †Nuculopsis
• †Nuculopsis girtyi
• †Nudauris
• †Nudauris convexa
• †Nudauris diabloensis
• †Nudauris enigmatica – type locality for species
• †Nudauris linospina – type locality for species
• †Nudauris reticulata – type locality for species
• †Nudauris splendens – type locality for species
• †Nudauris transversa
• †Nudauris tribulosa
• †Nudauris whitei
• †Nuia
• †Nuia siberica
• †Nybyoceras
• †Nybyoceras montoyense
• †Nyctopora
• †Nyctopora mutabilis – type locality for species
• †Nyctopora nondescripta – type locality for species

{{Compact TOC}}

• †Obliquipecten
• †Obliquipecten granti
• †Ochmazochiton – type locality for genus
• †Ochmazochiton comptus – type locality for species
• †Odonopteris
• †Odontopteris
• †Odontopteris conferta
• †Odontopteris fischeri
• †Odontopteris genuina
• †Odontopteris neuropteroides
• †Odontopteris osmundaeformis – or unidentified comparable form
• †Oistodus
• †Oldhamina – tentative report
• †Olenus
• †Oligorthis
• †Oligorthis arbucklensis
• †Ombonia
• †Ombonia guadalupensis
• †Ombonia invecta
• †Omphalotrochus
• †Omphalotrochus alleni – type locality for species
• †Omphalotrochus cochisensis – type locality for species
• †Omphalotrochus hessensis – type locality for species
• †Omphalotrochus obtusispira – type locality for species
• †Omphalotrochus spinosus – type locality for species
• †Omphalotrochus wolfcampensis – type locality for species
• †Oncosarina
• †Oncosarina rotunda
• †Oncosarina spinicostata – type locality for species
• †Oncosarina whitei
• †Oneotoceras
• †Onniella
• †Onniella plicata – type locality for species
• †Onniella quadrata
• †Onychochilus
• File:Ophiacodon mirus cropped.png]] †Ophiacodon – type locality for genus
• †Ophiacodon major – type locality for species
• †Ophiacodon retroversus – type locality for species
• †Ophiacodon uniformis – type locality for species
• †Ophileta
• †Ophileta polygyratus
• †Ophileta rotuliformis
• †Opisthotreta
• †Opisthotreta depressa
• †Orbicoelia
• †Orbicoelia guadalupensis
• †Orbicoelia inflata
• †Orbicoelia tholiaphor – type locality for species
• †Orbicoelia tumibilis
• †Orbiculoidea
• †Orbiculoidea missouriensis
• †Ormoceras
• †Ormoceras dartoni
• File:Orodus sp1DB.jpg]] †Orodus
• †Orodus corrugatus – type locality for species
• †Orospira
• †Orthacanthus
• †Orthacanthus compressus
• †Orthacanthus texensis
• †Orthisina – report made of unidentified related form or using admittedly obsolete nomenclature
• †Orthoceracone
• †Orthograptus
• †Orthograptus fastigatus
• †Orthograptus quadrimucronatus
• †Orthograptus thorsteinssoni
• †Orthomyalina
• †Orthomyalina subquadrata
• †Orthonema
• †Orthonema paedice – type locality for species
• †Orthonema paxillus – type locality for species
• †Orthonema salteri
• †Orthonema striatonodosum
• †Orthonema telescopiforme – type locality for species
• †Orthonychia
• †Orthonychia bowsheri – type locality for species
• †Orthotetella
• †Orthotetella wolfcampensis – type locality for species
• †Orthotetes
• †Orthotetes mutabilis – or unidentified comparable form
• †Orthothetina
• †Orthotichia
• †Orthotichia hueconiana – type locality for species
• †Orthotichia irregularis
• †Orthotichia kozlowskii – type locality for species
• †Orthotichia newelli – type locality for species
• †Ossimimus – type locality for genus
• †Ossimimus robustus
• †Ostodolepis – type locality for genus
• †Ostodolepis brevispinatus – type locality for species
• †Oulodus
• †Oulodus cristagalli – tentative report
• †Ovatia
• †Oxyprora
• †Oxyprora capitanensis – type locality for species
• †Oxyprora missouriensis
• †Ozarkina
• †Ozarkina typica
• †Ozarkodina
• †Ozarkodina bohemica
• †Ozarkodina wurmi – tentative report
• †Ozawainella – tentative report
• †Ozawainella inflata – type locality for species