This list of the Paleozoic life of Oklahoma contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Oklahoma and are between 541 and 252.17 million years of age.
A
†Abludoglyptocrinus †Abyssocrinus †Abyssocrinus antiquus †Abyssomedon – type locality for genus †Abyssomedon williamsi – type locality for species †Acanthobolbina †Acanthobolbina loeblichi †Acanthocladia †Acanthocladia ouachitensis †Acanthocrania †Acanthocrania erecta †Acanthocrania oklahomensis †Acanthocrania subquadrata †Acanthopecten †Acanthopecten grandis – type locality for species †Acanthospirina †Acanthotriletes †Acheloma †Acheloma cumminsi – or unidentified comparable form †Acheloma dunni – type locality for species †Acidiphorus †Acidiphorus williamsi – or unidentified comparable form †Acleistorhinus – type locality for genus †Acleistorhinus pteroticus – type locality for species †Acolocrinus †Acolocrinus crinerensis †Actinotodissus †Actinotodissus longitaleosus †Adairia †Adairia adairensis – type locality for species †Adornofusa †Adornofusa microhapsis †Aechmina †Aechmina geneae †Aechmina longispina †Aechmina truncata – tentative report †Aechminaria †Aechminaria ambigua †Aechminaria longispina †Aechminaria truncata – tentative report †Aechminella †Aechminella buchanani – type locality for species †Aechminella trispinosa – type locality for species †Affinocrinus †Affinocrinus grandis – type locality for species †Affinocrinus normalis †Affinocrinus orbis – type locality for species †Affinocrinus politus – type locality for species †Affinocrinus progressus – type locality for species †Alatisporites †Alatisporites pustulatus †Albertoceras †Albertoceras minimum †Alcimocrinus †Alcimocrinus girtyi †Alethopteris †Alethopteris ambigua †Alethopteris lesquereuxii †Alethopteris serlii †Alethopteris sullivantii †Alexandrinia †Alexandrinia directa – type locality for species †Alisporites †Alisporites aequus – type locality for species †Alisporites zapfei †Allocrinus †Allocrinus divergens †Allocrinus globulus †Allocrinus irroratus †Alloiopteris †Allorisma †Allorisma albequus †Allorisma maynardwhitei – type locality for species †Allorisma snideri – type locality for species †Allotropiophyllum – or unidentified comparable form †Amarixys †Amarixys gracilis †Amaurotoma – tentative report †Amaurotoma knighti – type locality for species †Ameura †Ameura major Ammobaculites Ammodiscus †Ammovertella †Ammovertella inversa †Ampelocrinus †Ampelocrinus convexus †Amphilichas †Amphilichas subpunctatus †Amphipsalidocrinus †Amphiscapha †Amphiscapha catilloides †Amphisella †Amphissites †Amphissites bradfieldi – type locality for species †Amphissites bushi – type locality for species †Amphissites marginiferus †Amphissites miseri – type locality for species †Amphissites nodosus †Amphissites rugosus †Amphissites wapanuckensis †Amphistrophia †Amphistrophia prolongata †Amsdenina †Amsdenoides †Amygdalocystites †Amygdalocystites florealis †Amygdalocystites tribrachiatus †Anabathra †Anabathra pulcherrima †Anachoropteris †Anachoropteris gillotii †Anachoropteris involuta †Anachroropteris †Anachroropteris involuta †Ananaspis †Ananaspis guttulus †Anapiculatasporites †Anapiculatasporites spinosus †Anapiculatisporites †Anapiculatisporites edgarensis †Anapiculatisporites spinosus †Anaplanisporites †Anasobella †Anastrophia †Anastrophia delicata †Anastrophia grossa – type locality for species †Anataphrus †Anataphrus kermiti – type locality for species †Anatiferocystis †Anatiferocystis papillata †Anchicrinus †Anchicrinus echinosacculus – type locality for species †Anchicrinus planulatus – type locality for species †Anchicrinus rugosus †Ancistrorhyncha †Ancistrorhyncha costata †Ancistrorhyncha globularis †Ancoradella †Ancoradella ploeckensis †Anematina †Angelosaurus †Angelosaurus romeri – type locality for species †Anguisporites †Anguisporites contortus – type locality for species †Anguisporites intonsus – type locality for species † Anisophyllum †Annularia †Annularia sphenophylloides †Annularia stellata †Anobasicrinus †Anobasicrinus obscurus †Anolotichia †Anolotichia deckeri †Anolotichia impolita †Anolotichia spinulifera †Anomalogramma †Anomalogramma parva †Anomalohymen – type locality for genus †Anomalohymen dochmus – type locality for species †Anomalorthis †Anomalorthis oklahomensis †Anomphalus †Anthracoceras †Anthracoceras oklahomense – type locality for species †Anthracocrinus †Anthracocrinus primitivus †Anthraconeilo †Anthraconeilo taffiana †Anthracospirifer †Anthracospirifer opimus †Anthracotarbus – type locality for genus †Anthracotarbus hintoni – type locality for species †Anthyrsis †Antiquatonia †Antirhynchonella †Antirhynchonella thomasi †Anulocrinus †Anulocrinus drummuckensis – or unidentified related form †Apachella †Apachella capertoni – type locality for species †Aparchites †Aparchites maccoyii †Aparchites millepunctatus †Aparchites perforata †Aphlebia †Apianurus †Apiculatasporites †Apiculatasporites latigranifer †Apiculatasporites setulosus †Apiculatasporites spinulistratus †Apodasmocrinus †Apodasmocrinus daubei †Apographiocrinus †Apotocardium †Apotocardium lanterna †Apotocardium plautum †Apsidoneura †Apsidoneura flexa †Arakespongia – type locality for genus †Arakespongia mega – type locality for species †Araucarites †Arbucklecystis †Archaeocidaris †Archaeocidaris megastyla †Archaeocrinus †Archaeocrinus lacunosus – or unidentified comparable form †Archaeocrinus subglobosus †Archaeocrinus subovalis Archaeolithophyllum †Archaeophiomusium †Archaeophiomusium burrisi †Archaeoscyphia †Archaeoscyphia annulata †Archeria †Archeria victori – type locality for species †Archimedes †Archimedes ardmorensis – type locality for species †Archimedes distans †Archimedes meekanoides †Archimedes meekanus – or unidentified comparable form †Archimedes perminimus – or unidentified related form †Archimedes pitkinensis – type locality for species †Archimedes pseudoswallovanus – type locality for species †Archimedes sublaxus – or unidentified comparable form †Ardmosteges – type locality for genus †Ardmosteges orchamus – type locality for species †Arkacrinus †Arkacrinus constrictus – type locality for species †Arkacrinus dubius †Arkanites †Arkanites relictus †Arthropora †Arthropora simplex †Artinska †Artinska clara †Artinska ovata †Asaphocrinus †Asaphocrinus densus †Ascograptus †Asketopalla †Asketopalla formosula †Aspidosaurus – or unidentified comparable form †Astartella †Astartella concentrica †Astartella vera †Asterophyllites †Asthenohymen †Asthenohymen apicalis – type locality for species †Asthenohymen latus – type locality for species †Asthenohymen minutus – type locality for species †Asthenohymen parvulus – type locality for species †Asthenohymen triangularis – type locality for species †Astraeospongium †Astrocystites †Atactoporella †Atactoporella bellula †Atelelasma †Atelelasma oklahomense †Athlocrinus †Athlocrinus dejustus – type locality for species †Athyris †Atokacrinus †Atokacrinus tumulosus – type locality for species †Atrapocrinus – type locality for genus †Atrapocrinus mutatus – type locality for species †Atribonium †Atribonium evexum – or unidentified comparable form †Atrypa †Atrypa arctostriata †Atrypa oklahomensis †Atrypa tennesseensis †Atrypina †Atrypina hami †Aulacotheca – or unidentified comparable form †Aurimorpha †Aurimorpha varia †Auriptygma †Austinella †Austinella multicostella †Aviculopecten †Aviculopecten halensis †Aviculopecten multilineatus †Aviculopecten nodocosta – type locality for species †Aviculopecten tomlinsoni – type locality for species †Avonia – tentative report †Avonia snideri – type locality for species †Avonia spinosa – type locality for species †Axinolobus
B
†Bactrites †Bactrites smithianus †Bactrocrinites †Bactrocrinites oklahomensis †Baeotherates – type locality for genus †Baeotherates fortsillensis – type locality for species †Baiosoma †Baiosoma batilia – type locality for species Bairdia †Bairdia ardmorensis – type locality for species †Bairdia billjohnsoni – type locality for species †Bairdia croneisi – type locality for species †Bairdia folgeri †Bairdia forakerensis †Bairdia multihilosa – type locality for species †Bairdiocypris †Bairdocypris – tentative report †Bairdocypris transversus †Balticella †Balticella deckeri †Balticella elongata †Baltisphaeridium †Baltisphaeridium accinctum †Baltisphaeridium bystrentos †Baltisphaeridium disparicanale †Baltisphaeridium parvigranosum †Baltisphaeridium trophirhapium †Barycrinus – tentative report †Barycrinus herculeus – or unidentified related form †Bascomella †Bascomella gigantea – or unidentified comparable form †Bathysiphon †Bathyurellus †Bathyurellus arbucklensis †Bathyurellus inflatus †Bathyurus †Bathyurus superbus †Batostoma †Batostoma chapparsi †Batostoma chazyensis †Batostoma cumingsi †Batostoma ramosa †Batostoma sheldonensis †Batostoma winchelli †Beecheria †Beedeina †Bellazona †Bellazona bella †Bellerophon †Bellerophon wewokanus †Bellimurina †Bellimurina compressa †Bellimurina subquadrata †Belodella †Belodella silurica †Benthamaspis †Benthamaspis mediacrista – or unidentified comparable form †Benthamaspis onomeris †Benthamaspis rhochmotis †Berestovia †Bicornella †Bicornella tricornis †Bicornella unicornis – type locality for species †Bigalea †Bilinguites †Bilinguites eliasi – type locality for species †Bisatoceras – type locality for genus †Bisatoceras primum – type locality for species †Bistomiacystis †Boesites †Boesites girtyi †Bolbocephalus †Bolbocephalus convexus – or unidentified comparable form †Bolbocephalus jeffersonensis †Bolbocephalus myktos †Bolbocephalus stitti †Bollia †Bolosaurus †Bolosaurus grandis – type locality for species †Bolosaurus striatus †Bolterpeton – type locality for genus †Bolterpeton carrolli – type locality for species †Borestus †Borestus pagoda – type locality for species †Bothriocidaris †Botryocrinus †Botryocrinus parcus †Botryopteris †Botryopteris forensis †Botryopteris mediatena †Botryopteris tridentata †Brabeocrinus †Brabeocrinus primus – type locality for species †Brachydegma – tentative report †Brachydegma caelatum †Brachymimulus †Brachymimulus americanus †Brachyprion †Brachyprion arata †Brachyprion attenuata †Brachyprion gibber †Brachyprion gibbera – type locality for species †Brachythyris †Brachythyris chouteauensis †Bradyina †Bransonella – type locality for genus †Bransonella tridentata – type locality for species †Breileenia †Breileenia minnewankensis †Brevilamnulella †Brevilamnulella thebesensis †Bromidechinus – type locality for genus †Bromidechinus rimaporus – type locality for species †Bromidella †Bromidella reticulata †Bromidocrinus †Bromidocystis †Buckhornia †Buckhornia carteri †Bumastoides †Bumastoides milleri – or unidentified comparable form †Buxtonia †Buxtonia incurvatus †Buxtonia semicircularis †Buxtonia suttoni – type locality for species Bythocypris †Bythocypris cylindrica †Bythocypris kershavii †Bythocypris spinosa †Bythocypris tomlinsoni †Bythopora †Bythopora subgracilis
C
†Cacops †Cacops morrisi – type locality for species †Cacops woehri – type locality for species †Cadiospora †Cadiospora magna †Caenanoplia †Caenanoplia burlingtonensis †Calamaspora †Calamaspora breviradiata – or unidentified comparable form †Calamites †Calamospora †Calamospora breviradiata †Calamospora hartungiana †Calamospora liquida †Calamospora mutabilis †Calamospora pedata †Calamospora straminea †Calathium †Calceocrinus †Calceocrinus humilis †Callipteris †Callistophyton †Callistophyton boyssetii †Calohymen – type locality for genus