List of the Paleozoic life of Oklahoma

• †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 • †Calohymen permianus – type locality for species • †Calycocrinus • †Calycocrinus furnishi – type locality for species • †Calycocrinus symmetricus – type locality for species • †Calymene'' • †Calymene clavicula • †Calyptaulax • †Calyptaulax annulata • †Camarophorella • †Camarotoechia • †Camarotoechia altisulcata • †Camarotoechia carmelensis • †Camarotoechia filistriata • †Camarotoechia haraganensis • †Camarotoechia oklahomensis • † Camerate • †Camerella • †Camerella anteroplicata • †Camerella oklahomensis • †Camorphoria • †Campbelloceras • †Cancelloceras • †Cancelloceras huntsvillense – type locality for species • †Cancrinella • †Cancrinella boonensis • †Caneyella • †Capnophyllum • †Captorhinikos • †Captorhinikos chozaensis • †Captorhinikos parvus – type locality for species • †Captorhinikos valensis • †Captorhinus'' • †Captorhinus aguti • †Captorhinus kierani – type locality for species • †Captorhinus laticeps – type locality for species • †Captorhinus magnus – type locality for species • †Carabocrinus • †Carabocrinus loeblichi • †Carabocrinus logani • †Carabocrinus treadwelli • †Carabocrinus tumidus • †Carabocrinus vancortlandi – or unidentified comparable form • †Carbonocoryphe • †Carbonocoryphe planucauda • †Carboprimitia • †Carboprimitia rotunda – or unidentified comparable form • †Cardiocephalus'' • †Cardiocephalus peabodyi – type locality for species • †Cardiocephalus sternbergi – or unidentified comparable form • †Cardiodella • †Cardiodella abbreviatus • †Cardiodella arcuatus • †Cardiodella densus • †Cardiodella robustus • †Carolinites • †Carolinites sibiricus • †Caryocaris – tentative report • †Caryocrinites • †Cavellina • †Cavellina lata • †Cavellina subovata • †Cavernula • †Cavernula coccidia • †Cavernula pediculata • †Centrotarphyceras • †Centrotarphyceras powersi • †Ceramopora • †Ceramopora unapensis • †Ceramoporella • †Ceramoporella ingenua • †Ceratiocaris • †Ceratocephala • †Ceratocephala graffhami • †Ceratonurus • †Ceratopea • †Ceraurinella • †Ceraurus'' • †Ceraurus ruidus • †Cerithioides – tentative report • †Cerithioides gleanensis • †Chaenocardia • †Chaenocardia ovata • †Chaetetes • †Chaetetes milleporaceus – or unidentified comparable form • †Chaloneria • †Champlainopora • †Champlainopora chazyensis • †Chapmania • †Chapmania carterensis • †Chapmania oklahomensis • †Chapmania taylori • †Chaulistomella • †Chaulistomella crassa • †Chaulistomella magna • †Chaulistomella mira • †Chaulistomella mundula • †Chaulistomella nitens • †Chaulistomella obesa • †Cheirocrinus • †Cheirocystis • †Cheirocystis ardmorensis • †Cheirurus'' • †Cheirurus infensus • †Cheirurus phollikodes – type locality for species • †Chilotrypa • †Chilotrypa distans – type locality for species • †Chlidochirus • †Choctawites • †Choctawites choctawensis • †Chonetes • †Chonetes decipiens • †Chonetes euampygus • †Chonetes kingi – type locality for species • †Chonetes mesoloba • †Chonetinella • †Chonetinella flemingi – or unidentified comparable form • †Cibecuia • †Cibecuia gouldii • †Cibolocrinus • †Cibolocrinus bellus – type locality for species • †Cibolocrinus circulus – type locality for species • †Cibolocrinus spinosus – type locality for species • †Cibolocrinus tumidus • †Cirratriradites • †Cirratriradites annulatus • †Cirratriradites annuliformis • †Cirratriradites maculatus • †Cirratriradites saturnii • †Cladochonus'' • †Claritacarpus – type locality for genus • †Claritacarpus smithi – type locality for species • †Clarkeolepis – type locality for genus • †Clarkeolepis clarkei – type locality for species • †Clarkeolepis elegans – type locality for species • †Clathrocrinus • †Clathrocrinus grileyi – type locality for species • †Clavasporites – type locality for genus • †Clavasporites irregularis – type locality for species • †Clavatasporites • †Clavatasporites irregularis • †Cleiocrinus • †Cleiocrinus bromidensis – type locality for species • †Cleiocrinus regius • †Cleiothyridina'' • †Cleiothyridina glenparkensis – or unidentified comparable form • †Cleiothyridina orbicularis • †Cleithronetrum • †Cleithronetrum cancellatum • †Cleithyridina • †Cleithyridina orbicularis • †Clepsydrops • †Climacammina • Cliona • †Cliona fenestralis – type locality for species • †Cliona paleodendrica – type locality for species • †Cliona stellata – type locality for species • †Clionolithes • †Clionolithes radicans – or unidentified comparable form • †Coelochilina • †Coelochilina alata • †Coelospira • †Coelospira concava • †Coelospira saffordi • †Coelospira virginia • †Colaptomena • †Colaptomena bella • †Coledium • †Coledium simulans • †Colobomycter'' – type locality for genus • †Colobomycter pholeter – type locality for species • †Colobomycter vaughni – type locality for species • †Colpodecrinus • †Complexisporites • †Complexisporites polymorphus • †Composita • †Composita mexicana • †Composita rotunda • †Composita subcircularis • †Composita subtilita • †Composita wasatchensis • Concavisporites • †Concavissimisporites • †Condracypris • †Condracypris binoda • †Condracypris coalensis – type locality for species • †Condracypris parallela • †Condracypris simplex • †Condranema • †Condranema magna – or unidentified comparable form • †Conularia • †Conularia crustula – or unidentified comparable form • †Coolinia • †Coolinia reedsi • †Cordania • †Cordania falcata • †Cordania wessmani • †Cordylodus • †Cornigella • †Cornigella pushmatahensis – type locality for species • †Cornulites • †Cornulites inelegans • Cornuspira • †Cornuspira semiconstrictus • †Cotylorhynchus'' – type locality for genus • †Cotylorhynchus bransoni – type locality for species • †Cotylorhynchus romeri – type locality for species • †Cranaena • †Cranaena globosa • †Cranaena salinensis – type locality for species • Crania • †Crania minuta – type locality for species • †Craniops • †Craniops tenuis • †Crassispora • †Crassispora kosankei • †Cravenoceras • †Cremacrinus • †Cricotillus • †Cricotillus brachydens • . Edward Drinker Cope (1884). †Cricotus'' • †Cricotus crassidiscus • †Crinerocrinus • †Crinisarina • †Crinisarina prouti • †Crinoedischia • †Crinoedischia noblensis – type locality for species • †Cromyocrinus • †Cromyocrinus grandis • †Crossotelos – type locality for genus • †Crossotelos annulatus – type locality for species • †Crurithyris • †Crurithyris planoconvexa • †Cruruthyris • †Cruruthyris planoconvexa • †Crustaesporites • †Crustaesporites globulus – tentative report • †Cryptophyllus • †Cryptophyllus gibbosum • †Cryptophyllus nuculopsis • †Cryptophyllus simpsoni • †Cryptothyrella – tentative report • †Cryptothyrella ovoides • †Ctenacanthus'' – report made of unidentified related form or using admittedly obsolete nomenclature • †Ctenobolbina • †Ctenobolbina abrupta • †Ctenobolbina bispinata • †Ctenobolbina cancellata • †Ctenobolbina inflata • †Ctenobolbina parva • †Ctenobolbina percarinata • †Ctenobolbina varicata • †Cullisonia • †Cullisonia producta • †Curtognathus • †Curtognathus cordiformis • †Curtognathus coronata • †Curtognathus limitaris • †Cyathocystis • †Cyathocystis oklahomae • †Cybeloides • †Cybelopsis • †Cycadopites • †Cyclites • †Cyclites depressus – type locality for species • †Cyclobathmus • †Cyclobathmus haworthi – type locality for species • †Cycloceras • †Cycloceras meeki – type locality for species • †Cycloceras randolphensis • †Cyclocystoides • †Cyclogranisporites • †Cyclogranisporites aureus • †Cyclogranisporites leopoldi • †Cyclogranisporites microgranus • †Cyclogranisporites minutus • †Cyclogranisporites obliquus • †Cyclogranisporites orbicularis • †Cyclonema • †Cycloplectoceras • †Cycloplectoceras miseri • †Cyclopteris'' • †Cyclopuncta – type locality for genus • †Cyclopuncta girtyi – type locality for species • †Cyclospira • †Cyclospira parva • †Cyclozyga • †Cyclozyga neotenica – type locality for species • †Cymatorhiza – type locality for genus • †Cymatorhiza kittsi – type locality for species • †Cymatospira • †Cymatospira montfortianus • †Cyphaspis'' • †Cyphaspis carrolli • †Cyphoneurodes • †Cyphoneurodes patriciae – type locality for species • †Cypricardella – tentative report • †Cypricardella enigmatica – type locality for species • †Cyrtina • †Cyrtina dalmani • †Cyrtograptus • †Cyrtorizoceras • †Cystiphyllum • †Cystodictya • †Cystodictya elegans – type locality for species ==D==

• †Dactylogonia • †Dactylogonia sculpturata • †Dactylogonia subaequicostellata • †Dalejina • †Dalejina henryhousensis • †Dalejina subtriangularis • †Dalmanella • †Dalmanella edgewoodensis • †Dalmanites'' • †Dalmanites ptyktorhion • †Dalmanites rutellum • †Dapsilodus • †Dapsilodus obliquicostatus • †Dapsilodus praecipuus • †Dapsilodus sparsus • †Decoriconus • †Decoriconus fragilis • †Decoroproetus • †Decoroproetus anaglyptus • †Decoroproetus corycoeus • †Dekayella • †Dekayella praenuntia • †Delocrinus • †Delocrinus densus • †Delocrinus hemisphericus • †Delocrinus pentanodus – type locality for species • †Deloia • †Deloia sulcata • †Delopsocus • †Delopsocus elongatus • †Delopterum • †Delopterum latum • †Delopterum minutum • †Delorhynchus'' – type locality for genus • †Delorhynchus cifellii – type locality for species • †Delorhynchus priscus – type locality for species • †Delotaxis • †Delthyris • †Delthyris kozlowskii • †Deltoidospora • †Deltoidospora adnata • †Deltoidospora grandis • †Deltoidospora levis • †Deltoidospora priddyi • †Deltoidospora sphaerotriangula • †Deltoidospora subadnatoides • †Dendrocrinus • †Dendrocrinus latibranchiatus – or unidentified comparable form • †Dendrocrinus rusticus • †Densosporites • †Densosporites sphaerotriangularis • †Derbyia • †Derbyia crassa – or unidentified comparable form • †Derbyoides – or unidentified related form • †Desmoinesia • †Desmoinesia muricatina • †Desmorthis • †Diabolocrinus • †Diacalymene • †Diacalymene clavicula • †Diadectes'' • †Diadectes zenos • †Dianulites • †Dianulites fastigiatus • †Dianulites petropolitana • †Diaphoroceras • †Diaphorodendron • †Diaphorodendron dicentricum • †Diaphorodendron scleroticum • †Diaphragmus • †Diaphragmus fasciculatus • †Dibunophyllum • †Dibunophyllum hansoni – type locality for species • †Dicamaropsis • †Dicamaropsis parva • †Dicellograptus • †Dicellograptus gurleyi • †Dicellograptus mensurans • †Diceromyonia • †Diceromyonia tersa – or unidentified comparable form • †Dichentomum • †Dichentomum tinctum • †Dichognathus • †Dichognathus extensa • †Dichognathus typica • †Dicoelosia • †Dicoelosia oklahomenesis – type locality for species • †Dicoelosia oklahomensis • †Dicoelosia varica • †Dicranella • †Dicranella fragilis • †Dicranella macrocarinata • †Dicranurus • †Dicranurus elegantus • †Dicranurus hamatus • †Dicromyocrinus • †Dicromyocrinus medius – type locality for species • †Dicromyocrinus optimus • †Dicromyocrinus subaplatus – type locality for species • †Dictybolos – type locality for genus • †Dictybolos tener – type locality for species • †Dictyoclostus • †Dictyoclostus ingrata – or unidentified related form • †Dictyoclostus mesialis • †Dictyonema • †Dictyonema francesiae • †Dictyonema rockcrossingensis • †Dictyospongia • †Dielasma • †Dielasma oklahomensis – type locality for species • †Dierespongia – type locality for genus • †Dierespongia palla – type locality for species • †Dimeropygiella • †Dimetrodon'' • †Dimetrodon dollovianus • †Dimetrodon limbatus – or unidentified comparable form • †Dimetrodon loomisi • †Dimetrodon macrospondylus • †Diphuicrinus • †Diphuicrinus croneisi • †Diphuicrinus dovelyensis • †Diphuicrinus faustus – type locality for species • †Diphuicrinus mammifer – type locality for species • †Diphuicrinus pentanodus – type locality for species • †Diplocaulus'' – type locality for genus • †Diplocaulus magnicornis • †Diplocaulus parvus – type locality for species • †Diplocaulus primus – type locality for species • †Diplograptus • †Diplograptus maxwelli • †Diplothmema • †Diplothmema pachyderma • †Diplotrypa • †Diplotrypa bassleri • †Discitoceras • †Disparifusa • †Disparifusa hystricosa • †Distacodus • †Distacodus oklahomensis – type locality for species • †Ditaxineura • †Ditaxineura cellulosa • †Ditoecholasma • †Ditomopyge • †Ditomopyge parvulus – or unidentified comparable form • †Dizygopleura • †Doleotheca • †Doleroides • †Doleroides compressus • †Doleroides oklahomensis • †Doleroides vescus • †Dolerophyllum – tentative report • †Dolerorthis • †Dolerorthis hami • †Dolerorthis nanella • †Dolerorthis savagei • †Doleserpeton – type locality for genus • †Doleserpeton annectens – type locality for species • †Dolichoharpes • †Dolichoharpes reticulata • †Doliocrinus • †Domatoceras • †Domatoceras collinsvillense – type locality for species • †Domatoceras williamsi • †Donaldina • †Donaldina attenuata • †Donaldina grantonensis • †Donezella • †Donovaniconus • †Donovaniconus oklahomensis – type locality for species • †Drepanoistodus • †Drepanoistodus suberectus • †Dudleyaspis • †Dunbarites • †Dunbarites rectilateralis • †Dunbarites wewokensis – type locality for species • †Duncanella ==E==

• †Earlandinita • †Eatonia • †Eatonia exserta • †Ecculiomphalus – tentative report • †Echinaria • †Echinoconchus • †Echinoconchus elegans • †Echinocrinus • †Echinocrinus cratis – or unidentified related form • †Echinoencrinites – tentative report • †Echinoencrinites ornatus • †Echinoprimitia • †Echinoprimitia imputata • †Echinosphaerites'' • †Echinosphaerites aurantium • †Economolopsis • †Economolopsis anodontoides • †Ectenaspis • †Ectenaspis burkhalteri – type locality for species • †Ectenocrinus • †Ectenoglossa – tentative report • †Ectenoglossa sculpta • †Ectosteorhachis • †Ectosteorhachis nitidus – or unidentified comparable form • †Edaphosaurus'' • †Edaphosaurus cruciger • †Edestus – type locality for genus • †Edestus vorax – type locality for species • †Edmondia • †Edmondia rotunda – type locality for species • †Edmondia senilis – or unidentified comparable form • †Edmondia splendens – type locality for species • †Edriocrinus • †Edriophus • †Ehlersia • †Elibatocrinus • †Elibatocrinus elongatus – or unidentified comparable form • †Elmoa • †Elmoa trisecta • †Elpidocrinus • †Elpidocrinus tuberosus • †Embolaster – type locality for genus • †Embolaster graffhami – type locality for species • †Emilites • †Emilites bennisoni – type locality for species • †Enchostoma – tentative report • †Enchostoma bicarinatum – or unidentified comparable form • †Endelocrinus • †Endelocrinus matheri • †Endosporites • †Endosporites globiformis • †Endosporites plicatus • †Endosporites zonalis • †Endothyra • †Endothyra bowmani • †Endothyranella • †Enteletes • †Entelophyllum • †Enterolasma • †Eoasianites • †Eochiton • †Eochiton arbucklensis – type locality for species • †Eochonetes • †Eochonetes magna • †Eodictyonella (formerly Dictyonella) • †Eodictyonella gibbosa • †Eohippioceras • †Eohippioceras ferratum • †Eohollina • †Eohollina depressa • †Eohollina papillata • †Eoleperditia • †Eoleperditia fabulites • †Eoleperditia inflativentralis • †Eolissochonetes • †Eomartiniopsis • †Eomartiniopsis rostrata • †Eomonorachus • †Eomonorachus divaricatus • †Eopinnacrinus • †Eopleurophorus – type locality for genus • †Eopleurophorus immaturus • †Eopleurophorus spinulosa – or unidentified comparable form • †Eoprimitia • †Eoprimitia bailyana • †Eoprimitia cooperi • †Eoprimitia quadrata • †Eoprimitia subnodosa • †Eorobergia • †Eorobergia marginalis – or unidentified comparable form • †Eoschistoceras • †Eoschistoceras strawnense • †Eospirifer • †Eospirifer acutolineatus • †Eotomaria • †Ephedripites • †Ephedripites corrugatus – type locality for species • †Epiphyton • †Equisetites • †Equisetosporites • †Eridoconcha • †Eridoconcha magna • †Eridoconcha simpsoni • †Eridopora • †Eridopora radiata • †Eridopora stellata • †Eridotrypa • †Eridotrypa abrupta • †Erismodus – tentative report • †Erisocrinus • †Erisocrinus wapanucka • †Eryops'' • †Eryops megacephalus • †Escharopora • †Escharopora recta • †Estheria • †Ethelocrinus – tentative report • †Ethelocrinus kirki • †Eucalyptocrinites'' • †Eucalyptocrinites pernodosus • †Euchondria • †Euchondria subquadrata – type locality for species • †Eucraterellina • †Eucraterellina oblonga • †Eucraterellina randolphi • †Eucraterellina spitznasi • †Eucystis • †Eudissoceras – type locality for genus • †Eudissoceras collinsvillense – type locality for species • †Eukloedenella • †Eumartynovia – type locality for genus • †Eumartynovia raaschi – type locality for species • †Eumetria • †Eumetria deltoides – type locality for species • †Eumetria matheri – type locality for species • †Eumetria vera • †Eumetria verneuiliana • †Eumorphoceras • †Eumorphoceras bisulcatum • †Eumorphoceras girtyi • †Eumorphocystis • †Eumorphocystis multiporata • †Euonychocrinus • †Eupachycrinus • †Eupachycrinus magister – or unidentified comparable form • †Eupachycrinus verrucosus • †Euphemites • †Euphemites carbonarius • †Euphemites compressus – type locality for species • †Eurychilina • †Eurychilina papillata • †Eurychilina subradiata • †Eurychilina ventrosa • †Eurygonum • †Eurygonum nodosum • †Euryodus • †Euryodus dalyae – type locality for species • †Euryodus primus – or unidentified comparable form • †Eusphenopteris • †Eusphenopteris scribanii-striata – informal • †Euspirocrinus • †Euspirocrinus cirratus • †Exocrinus • †Exoriocrinus ==F==

• †Failleana • †Failleana limbata – or unidentified comparable form • †Falcisporites • †Falcisporites zapfei • †Fardenia • †Fardenia attenuata • †Fardenia reedsi • †Fascichnus • †Fascichnus dactylus • †Fascichnus frutex • †Fascifera • †Fascifera dalmanelloidea • †Fastigatisporites • †Fastigatisporites physema – type locality for species • †Favosites • †Fayella – type locality for genus • †Fayella chickashaensis – type locality for species • †Feeserpeton'' – type locality for genus • †Feeserpeton oklahomensis – type locality for species • †Fenestella • †Fenestella ardmorensis • †Fenestella bendensis – type locality for species • †Fenestella cestriensis • †Fenestella chesterensis – or unidentified comparable form • †Fenestella cumingsi • †Fenestella exigua • †Fenestella frutex – or unidentified comparable form • †Fenestella granularis – type locality for species • †Fenestella kosomensis – type locality for species • †Fenestella morrowensis • †Fenestella oklahomensis – type locality for species • †Fenestella ovatipora – type locality for species • †Fenestella paradisensis • †Fenestella rara – type locality for species • †Fenestella serratula • †Fenesteverta – type locality for genus • †Fenesteverta nicklesi – type locality for species • †Fernglenia • †Fernglenia vernonensis • †Finkelnburgia • †Finkelnburgia crassicostata • †Fistulipora • †Flexifenestella • †Flexifenestella grandis – type locality for species • †Florinites • †Florinites mediapudens • †Florinites millotti • †Florinites similis • †Florinites visendus • †Florinites volans • †Foerstediscus • †Foerstia • †Foerstia ohioensis • †Fragiscutellum • †Fragiscutellum glebalis • †Fragiscutum • †Frencrinuroides'' • †Frencrinuroides capitonis • †Fusulina ==G==

• †Galateacrinus • †Gardenasporites • †Gardenasporites heisselii • †Garwoodia • †Gastrioceras • †Gastrioceras adaense • †Gastrioceras fittsi • †Gastrioceras prone – type locality for species • †Gastrioceras retiferum – type locality for species • †Gazacrinus • †Gazacrinus stellatus • †Gelasinocephalus • †Gelasinocephalus pustulosus • †Gelasinocephalus whittingtoni • †Geniculifera • †Geniculifera siphuncula – type locality for species • †Gigagramma – type locality for genus • †Gigagramma carpenteri – type locality for species • †Gigantopteris • †Gigantopteris americana • †Girtycoelia • †Girtyella • †Girtyspira • †Girtyspira alvaensis – type locality for species • †Girvanella • †Gissocrinus • †Gissocrinus quadratus • †Glabovalvulina – tentative report • †Glabrocingulum • †Glabrocingulum grayvillense • †Glabrocingulum stellaeformis • †Glabrocingulum wannense – type locality for species • †Glaphurochiton • †Glaphyrites • †Glaphyrites angulatus • †Glaphyrites excelsus – type locality for species • †Glaphyrites hyattianus • †Glaphyrites subdiscus • †Glaphyrites warei – type locality for species • †Glaphyrophlebia • †Glaphyrophlebia anderhalterorum – type locality for species • †Glaukosocrinus • †Globivalvulina • †Globovalvulina • †Globulocystites • †Globulocystites cristatus • †Globulocystites infundus • †Glosella • †Glosella liumbona • †Gloverilima • †Gloverilima pratti • †Glymmatobolbina • †Glymmatobolbina quadrata • †Glyprorthis • †Glyprorthis costellata • †Glyptocystella • †Glyptocystella loeblichae • †Glyptocystites • †Glyptocystites forbesi • †Glyptocystites loeblichae • †Glyptocystites logani • †Glyptocystites multiporus • †Glyptocystites regnelli – or unidentified comparable form • †Glyptopleura • †Glyptopleura geisi – type locality for species • †Glyptopleura scotti – type locality for species • †Glyptopleura warthini – type locality for species • †Glyptorthis • †Glyptorthis crenulata – type locality for species • †Glyptorthis glaseri • †Glyptorthis obesa – type locality for species • †Glyptorthis uncinata – type locality for species • †Gnathodus • †Gnathorhiza'' • †Gnathorhiza serrata • †Gnetalesaccus • †Gnetalesaccus variabilis • †Gnorimocrinus • †Gnorimocrinus pontotocensis • †Goniasma • †Goniatites'' • †Goniatites multiliratus – type locality for species • †Gonioglyphioceras • †Gonioglyphioceras gracile • †Gonioloboceratoides • †Goniophora • †Gorgonisphaeridium • †Gorgonisphaeridium antiquum • †Gotlandochiton • †Gotlandochiton hami – type locality for species • †Graffhamicrinus • †Graffhamicrinus antiquus • †Grammolomatella • †Granasporites • †Granasporites medius • †Grandfieldia – type locality for genus • †Grandfieldia callilepidota – type locality for species • †Granulatisporites • †Granulatisporites granularis • †Granulatisporites granulatus • †Granulatisporites microgranifer • †Granulatisporites minutus • †Granulatisporites verrucosus • †Graptodictya • †Graptodictya elegantula • †Griffithidella • †Griffithidella alternata • †Griffithidella doris • †Gryphellina • †Gryphellina sellardsi – type locality for species • †Grypocrinus • †Gyalorhethium • †Gyalorhethium chondrodes • , also known as button coral †Gymnophyllum'' • †Gymnophyllum wardi • †Gypidula • †Gypidula multicostata • †Gyronema ==H==

• †Hagnocrinus • †Halliella • †Halliella labiosa • †Hallopora'' • †Hallopora dubia • †Hallopora macrostoma • †Hallopora multitabulata • †Hallopora pachymura • †Halysites • †Hamiapollenites – type locality for genus • †Hamiapollenites karrooensis • †Hamiapollenites saccatus – type locality for species • †Hamiapollenites tractiferinus • †Haplistion • †Haplistion apletum – type locality for species • †Hapsidopareion – type locality for genus • †Hapsidopareion lepton – type locality for species • †Harpidella • †Harpidella butorus • †Harpillaenus • †Healdia • †Healdia caneyensis • †Healdia compressa • †Healdia harltoni – type locality for species • †Healdia simplicissima – type locality for species • †Hebetorthoceras • †Hebetorthoceras brokenarrowense • †Heliolites • †Heliosocrinus • †Heliosocrinus neotosus – type locality for species • †Helminthochiton • †Helminthochiton riddlei • †Hemiliroceras • †Hemiliroceras reticulatum – type locality for species • †Hemiphragma • †Hemiphragma irrasum • †Hemiphragma pulchra • †Hesperocystis • †Hesperocystis deckeri • †Hesperorthis • †Hesperorthis crinerensis • †Hesperorthis rowlandi • †Hesperorthis sulcata • †Heterangium • †Heteropecten • †Heteropecten vanvleeti – type locality for species • †Heterotrypa • †Heterotrypa taffi • †Hexacrinites • †Hexacrinites adaensis • †Hexacrinites carinatus • †Hibbertia • †Hindia • †Hindiodella • †Hippocrepina • †Hippocrepina bendensis • †Hiscobeccus • †Hiscobeccus capax • †Hoffmeisterites – type locality for genus • †Hoffmeisterites microdens – type locality for species • †Holcospermum • †Hollinella • †Hollinella burlingamensis • †Hollinella radiata • †Holmesella • †Holmesella triangularis – type locality for species • †Holmesella wapanuckensis – type locality for species • †Holopea'' – tentative report • †Homocladus • †Homocladus grandis • †Homoeospira • †Homoeospira costatula • †Homoeospira foerstei • †Homoeospira subgibbosa • †Homotrypa • †Homotrypa callitoecha • †Homotrypa dickeyvillensis • †Homotrypa multitabulata • †Homotrypa sagittata • †Homotrypa tuberculata • †Homotrypa ulrichi • †Hormotoma • †Howellella • †Howellella cycloptera • †Howellella henryhousensis • †Howellella splendens • †Hudsonaster • †Huntonella – type locality for genus • †Huntonella unicornis – type locality for species • †Huntoniatonia'' • †Huntoniatonia huntonensis • †Huntoniatonia lingulifer • †Huntoniatonia oklahomae • †Huntoniatonia purduei • †Hustedia • †Hustedia mormoni – or unidentified comparable form • †Hybocrinus • †Hybocrinus conicus • †Hybocrinus crinerensis • †Hybocrinus nitidus • †Hybocrinus pyxidatus • †Hydreionocrinus • †Hydreionocrinus patulus • Hyperammina • †Hyperammina elongata • †Hyperammina johnsvalleyensis – type locality for species • †Hyperammina rugosa • †Hyperamminoides • †Hyperamminoides glabra • †Hyperchilarina • †Hyperchilarina nodosimarginata • †Hypergonia • †Hypergonia quadricarinata – or unidentified comparable form • †Hypergonia tatei – or unidentified related form ==I==

• †Ianthinopsis • †Icthyocrinus • †Icthyocrinus corbis • †Idiognathodus • †Idiognathodus delicates • †Idiognathodus sinuatus • †Illaenus'' • †Illaenus utahensis – or unidentified comparable form • †Illenites • †Illenites delasaucei • †Illenites parvus • †Inflatia • †Inflatia cherokeensis • †Inflatia clydensis • †Inflatia cooperi • †Inflatia gracilis • †Inflatia inflata • †Inflatia pusilla • †Inflatia succincta – type locality for species • †Ischyrotoma • †Ischyrotoma sila • †Isoallagecrinus • †Isoallagecrinus barnettensis – type locality for species • †Isochilina • †Isochilina bulbosa • †Isorthis • †Isorthis arcuaria • †Isorthis pygmaea • †Isoteloides • †Isoteloides peri • . †Isotelus'' • †Isotelus bradleyi – type locality for species • †Isotelus violaensis – type locality for species • †Ivanovia – tentative report • †Ivoechiton • †Ivoechiton calathicolus – type locality for species • †Ivoechiton oklahomensis – type locality for species ==J==

• †Janusella • †Janusella biceratina • †Jeffersonia • †Jeffersonia granosa • †Jeffersonia jenni • †Jeffersonia ulrichi • †Jonesina • †Jonesina spinigera – or unidentified comparable form • †Jonesites • †Jonesites circa • †Jonesites huntonensis – type locality for species • †Juresania ==K==

• †Kainops'' • †Kainops invius • †Kainops raymondi • †Kallimorphocrinus • †Kallimorphocrinus eaglei – type locality for species • †Kawina • †Kayina • †Kayina hybosa • †Kayina porosa • †Kennedya • †Kennedya fraseri – type locality for species • †Kennedya mirabilis • †Keokukia • †Keokukia sulcata • †Kettneraspis • †Kettneraspis williamsi • †Kirkbya • †Kirkbya bendensis – type locality for species • †Kirkbya moorei • †Kirkbya symmetrica • †Kirkbyella • †Kirkbyella obliqua • †Kirkidium • †Kirkocystis – type locality for genus • †Kirkocystis papillata – type locality for species • †Kitakamithyris • †Kitakamithyris cooperensis • †Klausipollenites • †Klausipollenites aequus • †Klausipollenites schaubergeri • †Knightites • †Knightites montfortianum • †Knightoceras • †Knightoceras patulum • †Kockelella • †Kockelella amsdeni • †Kockelella crassa • †Kockelella ortus • †Kockelella patula • †Kockelella ranuliformis • †Kockelella stauros • †Kockelella variabilis • †Kockelella walliseri • †Kosovopeltis • †Kozlowskia • †Kozlowskia splendens • †Kozlowskiellina • †Kozlowskiellina vaningeni • †Krausella • †Krausella arcuata • †Krotovia • †Kukalova – type locality for genus • †Kukalova americana – type locality for species ==L==

• †Labidosaurikos – type locality for genus • †Labidosaurikos meachami – type locality for species • †Labidosaurus'' • †Labiisporites • †Labiisporites granulatus • †Laeviatosporites • †Laeviatosporites ovalis • Laevidentalium • †Laevidentalium venustum – or unidentified comparable form • †Laevigatosporites • †Laevigatosporites desmoinesensis • †Laevigatosporites globosus • †Laevigatosporites medius • †Laevigatosporites ovalis • †Laevigatosporites striatus • †Laevigatosporites vulgaris • †Lamellosathyris • †Lamellosathyris lamellosa • †Lampterocrinus • †Lampterocrinus fatigatus • †Lasanocrinus • †Lasanocrinus daileyi • †Lasanocrinus minutus – type locality for species • †Lasanocrinus multinodulus – type locality for species • †Lasanocrinus nodatus – type locality for species • †Lasanocrinus nodus – type locality for species • †Lasanocrinus strigosus • †Latosporites • †Latosporites minutus • †Leangella • †Leangella dissiticostella • †Lecanocrinus • †Lecanocrinus erectus • †Lecythiocrinus • †Lecythiocrinus asymmetricus – type locality for species • †Leioclema • †Leioclema dozierense • †Leioclema pushmatahensis – type locality for species • †Leiovalia • †Leiovalia scaberula • †Leiovalia teretis • †Lemmatophora • †Lemmatophora typa • †Leonaspis'' • †Leonaspis williamsi • †Lepadocystites • †Lepadocystites moorei – tentative report • †Leperditella • †Leperditella aequilatera • †Leperditella altiforma • †Leperditella deckeri • †Leperditella incisa • †Leperditella jonesinoides • †Leperditella minima • †Leperditella porosa • †Leperditella rex • †Leperditella tumida • †Leperditia • †Lepidocoelus • †Lepidocyclus • †Lepidocyclus cooperi • †Lepidocyclus manniensis – tentative report • †Lepidocyclus oblongus • †Lepidocyclus perlamellosus • †Lepidodendron'' • †Lepidodendron hickii • †Lepidophloios • †Lepidophloios hallii/johnsonii • †Leptaena • †Leptaena acuticuspidata – type locality for species • †Leptaena oklahomensis – type locality for species • †Leptaenisca • †Leptaenisca concava • †Leptaenisca irregularis • †Leptagonia • †Leptagonia analoga • †Leptochirognathus • †Leptochirognathus extensa • †Leptodesma • †Leptodesma gouldii – type locality for species • †Leptodesma matheri – type locality for species • †Leptodesma stenzeli – type locality for species • †Leptoskelidion – tentative report • †Leptoskelidion septulosum • †Leptostrophia • †Leptostrophia beckii • †Levenea • †Levenea subcarinata • †Ligogramma – type locality for genus • †Ligogramma sinuosa – type locality for species • †Ligogramma wichita – type locality for species • †Limipecten • †Limipecten newelli – type locality for species • †Lindosroemella • †Lindosroemella patula – or unidentified comparable form • †Lindostoemella • †Lindostoemella patula – or unidentified comparable form • †Lindostroemella • †Lindostroemella patula – or unidentified comparable form • Lingula • †Lingula carbonaria – or unidentified comparable form • †Lingula eva • †Lingula paracletus – or unidentified comparable form • †Lingulasma • †Lingulasma oklahomense • †Lingulella'' • †Lingulella galba • †Lingulella glypta • †Linoproductus • †Linoproductus delawarii – type locality for species • †Linoproductus ovatus • †Linoproductus prattenianus • †Liomolgocrinus • †Liomopterella • †Liomopterella pediaecetae – type locality for species • †Liomopterum • †Liomopterum ornatum • †Liospira • †Liroceras • †Liroceras liratum • †Lisca • †Lisca minuta • †Lissatrypa • †Lissatrypa clairensis • †Lissatrypa concentrica • †Lissatrypa decaturensis • †Lissatrypa henryhousensis • †Lissatrypa parvula • †Lissostrophia • †Lissostrophia cooperi • †Lissostrophia lindenensis • †Lissostrophia lindensis • Lithophaga • Lituotuba • †Llistrofus'' – type locality for genus • †Llistrofus pricei – type locality for species • †Lonchodomas • †Lonchodomas mcgeheei • †Lonchodus • †Lophamplexus • †Lophamplexus brevifolius – type locality for species • †Lophamplexus lutarius – type locality for species • †Lophamplexus spanius – type locality for species • †Lophamplexus vagus – type locality for species • †Lophophyllidium • †Lophophyllidium asarcum – type locality for species • †Lophophyllidium compressum – type locality for species • †Lophophyllidium hadrum • †Lophophyllidium profundum • †Lophophyllidium wewokanum – type locality for species • †Lophophyllum • †Lophospira • †Lophotichium • †Lophotichium amoenum • †Lophotriletes • †Lophotriletes commissuralis • †Lophotriletes ibrahimii • †Lophotriletes microsaetosus • †Lophotriletes pseudaculeatus • †Lophotriletes rarispinosus • †Lophpophyllum • †Lophpophyllum profundum – or unidentified comparable form • †Loxoedischia – type locality for genus • †Loxoedischia drewi – type locality for species • †Lueckisporites • †Lueckisporites fimbriatus • †Lueckisporites virkkiae • †Lunaferamita • †Lunaferamita bassleri • †Lunaferamita virginiensis • †Lundbladispora • †Lunulasporites – type locality for genus • †Lunulasporites vulgaris – type locality for species • †Lutesvillia • †Lutesvillia bispinosa • †Lycospora • †Lycospora granulata • †Lycospora micropapillata • †Lycospora pellucida • †Lycospora pusilla • †Lycospora rotuda • †Lycospora rotunda • †Lyroschizodus • †Lyroschizodus oklahomensis – type locality for species • showing speculative egg-coiling behavior †Lysorophus'' • †Lysorophus tricarinatus ==M==

• †Maclurites • †Macroleter'' • †Macroleter agilis – type locality for species • †Macropotamorhynchus • †Macropotamorhynchus tuta • †Macrostylocrinus • †Macrostylocrinus striatus • †Mandalocystis – type locality for genus • †Mandalocystis dockeryi – type locality for species • †Manespira • †Manespira costata • †Manespira elongata • †Manespira magnicostata • †Marginatia • †Marginatia magna • †Marginifera • †Marginovatia • †Marginovatia manardensis • †Marginovatia minor • †Marginovatia pumila • †Mariopteris • †Mariopteris nervosa • †Mariopteris occidentalis • †Marsupiocrinus • †Marsupiocrinus stellatus • †Marsupipollenites • †Marsupipollenites striatus • †Martynovia • †Martynovia halli – type locality for species • †Martynovia longipennis – type locality for species • †Mastigograptus • †Matonisporites • †Maurotarion • †Maurotarion axitiosum • †Maximites • †Maximites oklahomensis – type locality for species • †Mcqueenoceras • †Meekella • †Meekella striatocostata • †Meekopinna • †Meekopora • †Meekospira • †Meekospira choctawensis • †Meekospira peracuta • †Megactenopetalus • †Megactenopetalus kaibabanus • †Megaglossoceras • †Megakozlowskiella • †Megakozlowskiella velata • †Megaliocrinus • †Megaliocrinus aplatus • †Megamyonia • †Megamyonia mankini • †Meganeuropsis • †Meganeuropsis americana – type locality for species • †Merista • †Merista oklahomensis • †Meristella'' • †Meristella atoka • †Meristina • †Meristina claritensis • †Meristina roemeri • †Mescalites • †Mescalites discoidalis • †Mesolobus • †Mesotrypa • †Mesotrypa angularis • †Mesotrypa favosa • †Mesotrypa tubulifera • †Mesoxylon • †Metachorus • †Metachorus striolatus – type locality for species • †Metacoceras'' • †Metacoceras cornutum • †Metacoceras sinuosum • †Metacoceras vagans – type locality for species • †Metaconularia • †Metacromyocrinus • †Metacromyocrinus fundundus – type locality for species • †Metacromyocrinus papulosus • †Metutharocrinus • †Metutharocrinus cockei • †Metutharocrinus spinifer – type locality for species • †Metutharocrinus undulatus – type locality for species • †Michelinia • †Michelinia meekana • †Michelinoceras • †Michelinoceras directum • †Michelinoceras wapanuckense • †Micraroter'' – type locality for genus • †Micraroter erythrogeios – type locality for species • †Microcaracrinus • †Microcaracrinus delicatus • †Microcoelodus • †Microcoelodus asymmetricus • †Microcoelodus inornatus • †Microcoelodus intermedius • †Microcoelodus minutidentatus • †Microcoelodus typus • †Microleter – type locality for genus • †Microleter mckinzieorum – type locality for species • †Microreticulatisporites • †Microreticulatisporites nobilis • †Microreticulatisporites sulcatus • †Microschmidtella • †Microschmidtella berdanae – type locality for species • †Microschmidtella hami – type locality for species • †Microspermopteris • †Microspermopteris aphyllum • †Micula – tentative report • †Midcopterum – type locality for genus • †Midcopterum evidens – type locality for species • †Mimella • †Mimella extensa • †Mimella subquadrata • †Misthodotes • †Misthodotes edmundsi – type locality for species • †Misthodotes ovalis • †Mitorthoceras • †Mitorthoceras crebriliratum – type locality for species • †Mitorthoceras perfilosum • †Modiolopsis – tentative report • Modiolus • †Monoceratella • †Monoceratella brevispinata • †Monoceratina • †Monoceratina ardmorensis • †Monoceratina ventralis • †Monograptus'' • †Monticuliporella • †Monticuliporella croneisi • †Monticuliporella peculiaris • †Monticuliporella shideleri • †Mooreina • †Mooreina johnsvalleyensis – type locality for species • †Mooreisporites • †Mooreisporites inusitatus • †Mooreoceras • †Moorites • †Moravia • †Moravia grandis – type locality for species • †Moundocrinus • †Moundocrinus coalensis – type locality for species • †Mucrosaccus • †Mucrosaccus alatus – type locality for species • †Multicostella • †Multicostella convexa • †Multicostella sulcata • †Multidentodus – type locality for genus • †Multidentodus brevis – type locality for species • †Multidentodus gracilis – type locality for species • †Multidentodus irregularis – type locality for species • †Multidentodus johnsvalleyensis – type locality for species • †Multidentodus typicus – type locality for species • †Multidentodus wapanuckensis – type locality for species • †Murinella • †Murinella partita • †Murospora • †Murospora kosankei • †Myalina • †Myalina lepta • †Mycterosaurus'' – type locality for genus • †Mycterosaurus longiceps – type locality for species • †Myeinocystites • †Myeinocystites natus • †Myelodactylus ==N==

• †Nanicrinus • †Nanicrinus papillatus • †Nannaroter – type locality for genus • †Nannaroter mckinziei – type locality for species • †Nannospondylus – type locality for genus • †Nannospondylus stewarti – type locality for species • †Naticonema • †Naticopsis'' • †Naticopsis transversa – type locality for species • †Navispira • †Navispira saffordi • †Neoarchaeocrinus • †Neoarchaeocrinus necopinus • †Neochonetes • †Neochonetes granulifer • †Neodimorphoceras • †Neodimorphoceras oklahomae • †Neoglyphioceras • †Neoglyphioceras caneyanum – type locality for species • †Neoisorophusella • †Neoisorophusella whitesidei – type locality for species • †Neokoninckophyllum • †Neokoninckophyllum acolumnatum • †Neokoninckophyllum tushanense • †Neoraistrickia • †Neospirifer • †Neospirifer dunbari • †Neostrophia • †Neostrophia gregaria • †Neothlipsura • †Neothlipsura furca • †Neuropteris'' • †Neuropteris heterophylla • †Neuropteris macrophylla • †Neuropteris obliqua • †Neuropteris osmundae • †Neuropteris rarinervis • †Nicholsonella • †Nicholsonella acanthobscura • †Nicholsonella irregularis • †Nicholsonella laminata • †Nicholsonella moniliformis • †Nobloedischia – type locality for genus • †Nobloedischia rasnitsyni – type locality for species • †Nodosinella • †Nodosinella glennensis – type locality for species • †Nucleospira • †Nucleospira concentrica • †Nucleospira ventricosa • Nucula'' • Nuculana • †Nuculavus • †Nuculopsis • †Nuculopsis girtyi • †Nuculopsis subventricosa • †Nuculopsis wewoka • †Nuculopsis wewokana • †Nudauris • †Nudauris reticulata • †Nuferella • †Nuferella rothi – type locality for species • †Nummicrinus • †Nummicrinus brevis • †Nummicrinus papilloseous • †Nummulostegina • †Nummulostegina ardmorensis – type locality for species • †Nuskoisporites • †Nuskoisporites renulatus – type locality for species ==O==

• †Obturamentella – type locality for genus • †Obturamentella wadei • †Octonaria • †Odontochile'' • †Odontochile syncrama • †Odontochile taffi • †Odontopteris • †Odontopteris permiensis – or unidentified comparable form • †Oepikina • †Oepikina expatiata • †Oepikina extensa • †Oepikina formosa • †Oepikina gregaria • †Oinochoe • †Oinochoe coccymelum – type locality for species • †Oistodus • †Oistodus abundans • †Oistodus inclinatus • †Oklahomacrinus • †Oklahomacrinus frostae • †Oklahomacystis • †Oklahomacystis spissus • †Oklahomacystis tribrachiatus • †Oklahomasporites – type locality for genus • †Oklahomasporites majori – type locality for species • †Oligophyllum – or unidentified comparable form • †Oligotypus • †Oligotypus tillyardi • † Oliveria • †Oltulocrinus • †Omphalotrochus • †Omphalotrochus wolfcampensis • †Onniella – tentative report • †Onychoplecia • †Onychoplecia tenuis • †Onychotreta • †Onychotreta multiplicata • †Ophiacodon'' • †Ophiacodon major • †Ophiacodon mirus – or unidentified comparable form • †Ophiacodon uniformis • †Ophiletina • †Ophiletina bromidensis – type locality for species • †Opisthodontosaurus – type locality for genus • †Opisthodontosaurus carrolli – type locality for species • †Orbiculoidea • †Orbiculoidea eximia • †Orbignyella • †Orbignyella sublamellosa • †Orobias • †Orobias ciscoensis • †Oromycter – type locality for genus • †Oromycter dolesorum – type locality for species • †Orovenator – type locality for genus • †Orovenator mayorum – type locality for species • †Orthacanthus'' • †Orthacanthus compressus • †Orthoceras • †Orthograptus • †Orthograptus eucharis • †Orthonema • †Orthosphaeridium • †Orthosphaeridium vibrissiferum • †Orthostrophella • †Orthostrophella clairensis • †Orthostrophia • †Orthostrophia brownsportensis – or unidentified comparable form • †Orthostrophia strophomenoides • †Orthotetes • †Orthotetes kaskaskiensis • †Orthotetes springerensis – type locality for species • †Otarion • †Otarion axitosum – type locality for species • †Ottonosia • †Oulodus • †Oulodus siluricus • †Ovatia • †Ovatia laevicosta • †Oxoplecia • †Oxoplecia filosa • †Oxoplecia gouldi • †Oxyprora • †Oxyprora oklahomaense • †Oxyprora sayrei – type locality for species • †Ozarkodina • †Ozarkodina bohemica • †Ozarkodina confluens • †Ozarkodina crassa • †Ozarkodina sagitta ==P==

• †Pachydictya • †Pachydictya bromidensis • †Pachydictya sheldonensis • †Pachydomella • †Pachydomella sohni – type locality for species • †Pachyglossella • †Pachyglossella biconvexa • †Pachylyroceras • †Pachylyroceras cloudi • †Paciphacops'' • †Paciphacops birdsongensis – or unidentified comparable form • †Paciphacops campbelli • †Paciphacops raymondi • †Paladin • †Paladin morrowensis • †Paladin mucronatus – tentative report • Palaeoaplysina – tentative report • †Palaeocapulus – tentative report • †Palaeocapulus acutirostre – or unidentified comparable form • †Palaeocrinus • †Palaeocrinus hudsoni • †Palaeocystites – tentative report • †Palaeolima • †Palaeolima inequicostata • †Palaeoneilo • †Palaeostylus • †Palaeotextularia • †Palaeozygopleura • †Palaeozygopleura parva – tentative report • †Palecocrinus – tentative report • †Paleochiton • †Paleochiton kindbladensis – type locality for species • †Paleohyperamum – type locality for genus • †Paleohyperamum pottsvillensis – type locality for species • †Paleotextularia • †Paleuthygramma • †Paleuthygramma acuta – type locality for species • †Paleyoldia • †Paleyoldia glabra • †Palliseria • †Palliseria robusta • †Palmerocrinus • †Palmerocrinus profundus – type locality for species • †Paltodus • †Paltodus compressus • †Pandaspinapyga • †Pandaspinapyga salsa • †Panderodus • †Panderodus equicostatus • †Panderodus gracilis • †Panderodus greenlandensis • †Panderodus panderi • †Panderodus unicostatus • †Parabolbina • †Parabolbina scotti • †Paraconularia • †Paracremacrinus • †Paracremacrinus laticardinalis • †Paracromyocrinus • †Paracromyocrinus oklahomensis • †Paracromyocrinus planatus – type locality for species • †Paradiabolocrinus • †Paraechmina • †Paragassizocrinus • †Paragassizocrinus tarri • †Parahealdia • †Parahealdia quaesita • †Paralegoceras • †Paralegoceras iowense • †Paralegoceras textum • †Parallelodon • †Parallelodon vokesi – type locality for species • †Paramelocrinus • †Paramelocrinus ubaghsi • †Paramphicrinus • †Paraparchites • †Paraparchites circulantis • †Paraparchites elongatus – or unidentified comparable form • †Paraparchites wapanuckensis • †Parapermopsylla – type locality for genus • †Parapermopsylla tricubita – type locality for species • †Parapostibulla • †Parapostibulla graysoni – type locality for species • †Paraprisca • †Paraprisca fragilis • †Pararchaeocrinus • †Pararchaeocrinus decoratus • †Parasaccites • †Parasaccites korbaenis • †Paraschmidtella • †Parastrophinella • †Parastrophinella lepida • †Parazophocrinus • †Parazophocrinus callosus • †Parelmoa – type locality for genus • †Parelmoa obtusa – type locality for species • †Parelmoa radialis – type locality for species • †Parelmoa revelata – type locality for species • †Parulrichia • †Parulrichia haragenensis • †Pasawioops – type locality for genus • †Pasawioops mayi – type locality for species • †Passalocrinus • †Paucicrura • †Paucicrura oklahomensis • †Paucicrura rogata – or unidentified comparable form • †Paurorthis • †Paurorthis macrodeltoidea • †Pecopteris'' • †Pecopteris cyathea • †Pecopteris geinitzi • †Pecopteris hemitelioides • †Pecopteris miltonii • †Pecopteris plumosa-dentata – informal • †Pecopteris sarefolia • †Pelidocrinus • †Pelidocrinus exiguus • †Peltabellia • †Peltabellia implexa • †Peltacrinus • †Peltacrinus sculptatus • †Penicillicrinus • †Penniretepora • †Penniretepora ardmorensis – type locality for species • †Pennsylvanioxylon • †Pentameroides • †Pentremites'' • †Periglyptocrinus • †Periglyptocrinus priscus • †Perimestocrinus • †Perimestocrinus teneris • †Peripetoceras • †Permoberotha • †Permoberotha villosa – tentative report • †Permoblattina • †Permoblattina curta • †Permocoleus – type locality for genus • †Permocoleus wellingtonensis – type locality for species • †Permopanorpa • †Permopanorpa inaequalis • †Permophorus • †Permophorus albequus • †Permophorus immaturis • †Permophorus mexicanus • †Permopsylla • †Permopsylla americana – tentative report • †Perrinites • †Perrinites hilli • †Perryella – type locality for genus • †Perryella olsoni – type locality for species • †Petalodus'' • †Petigurus • †Petigurus cullisoni • †Petraia – tentative report • †Petraster • †Petrocrania • †Petrocrania inflata • †Phacellopegma • †Phacellopegma schizoderma • †Phacelocrinus • †Phacelocrinus brevis – type locality for species • †Phacelocrinus rosei • †Phanassymetria • †Phanassymetria quadrupla • †Phanassymetria triserrata • †Phanelactis • †Phaneroneura – type locality for genus • †Phaneroneura martynovae – type locality for species • †Phaneroneura reducta – type locality for species • †Phanocrinus • †Phanocrinus alexanderi – type locality for species • †Pharkidonotus • †Pharkidonotus percarinatus • †Phenopterum • †Phenopterum elongatum • †Phestia • †Phestia inflata • †Philhedra • †Phillipsia – tentative report • †Phimocrinus • †Pholidocidaris – tentative report • †Pholidocidaris irregularis – or unidentified comparable form • †Phragmodus • †Phragmodus inflexus • †Phragmodus undatus • †Phragmolites • †Phricodothyris • †Phyloblatta • †Phyloblatta curvata • †Phymatopleura • †Phymatopleura heteropleura – type locality for species • †Phymatopleura nodosa • †Pidelocrinus • †Pidelocrinus planus • †Pilosisporites • †Pilosisporites aculeolatus • †Pilosisporites williamsii • alga †Pinnularia'' • †Pirocystella • †Pisocrinus • †Pisocrinus quinquelobus • †Pisocrinus spatulatus • †Pisocrinus spatulus • †Pisocrinus tennesseensis • †Pityosporites • †Pityosporites westphalensis • †Placotriplesia • †Placotriplesia praecipta • †Plaesiomys'' • †Plaesiomys bellistriatus • †Plaesiomys proavitus • †Plaesiomys subquadrata • †Plagioglypta • †Plagioglypta annulostriatum • †Planisporites • †Planobola • †Planobola macrogota • †Platyceras • †Platyceras subelegans • †Platycrinites'' • †Platycystites • †Platycystites bassleri • †Platycystites bromidensis • †Platycystites faberi • †Platycystites fimbriatus • †Platycystites infundus • †Platycystites levatus • †Platyfundocrinus • †Platyfundocrinus webbersensis – type locality for species • †Platymena – tentative report • †Platymena bellatula • †Platyrhomboides • †Platyrhomboides quadratus • †Platysaccus • †Platysaccus papilionis • †Platysaccus saarensis • †Platysomus'' • †Platysomus palmaris – or unidentified comparable form • †Platystrophia • †Platystrophia prima • †Platystrophia sutherlandi • †Platystrophia uncinata • †Plectambonites • †Plectambonites sericeus • †Plectodonta • †Plectodonta petila • †Plectoglossa • †Plectoglossa oklahomensis • †Plectorthis • †Plectorthis punctata • †Plectorthis symmetrica • †Pleuracanthus • †Pleuracanthus gracilis • †Pleurocystites'' • †Pleurocystites watkinsi • †Plicochonetes • †Pliomerops • †Pliomerops canadensis – or unidentified comparable form • †Pluchratia • †Plummericrinus • †Plummericrinus expansus – type locality for species • †Poikilofusa • †Poikilofusa plethysticha • †Polidevcia • †Polidevcia bellistriata • †Polidevcia vaseyana – or unidentified comparable form • †Poloniella • †Poloniella chaleurensis – or unidentified comparable form • †Polyancistrodorus • †Polyancistrodorus columbariferus • †Polycaulodus • †Polycaulodus bidentatus • †Polycaulodus tridentatus • †Polycladiopora • †Polycladiopora pinnata – or unidentified comparable form • †Polydeltoideus • †Polydeltoideus enodatus • †Polygnathodella – type locality for genus • †Polygnathodella ouachitensis – type locality for species • †Polygnathoides • †Polygnathoides siluricus • †Polygnathus • †Polygnathus wapanuckensis – type locality for species • †Polylophothylax • †Polylophothylax crossii • †Polyplacognathus • †Polyplacognathus sweeti • †Polypora • †Polypora debilis – type locality for species • †Polypora ovicellata – type locality for species • †Polytylites • †Polytylites coryelli – type locality for species • †Polytylites kellettae – type locality for species • †Polytylites levinsoni – type locality for species • †Porocrinus • †Porocrinus bromidensis • †Postibulla • †Postibulla westergaardi – type locality for species • †Poteriocrinus – tentative report • †Potonieisporites • †Potonieisporites simplex – type locality for species • †Praecursoricrinus • †Praecursoricrinus sulphurensis • †Praepleurocystis • †Praepleurocystis watkinsi • †Prasopora • †Prasopora fritzae • †Primitiella • †Primitiella varicata • †Primitiopsis • †Primitiopsis bassleri • †Primitiopsis elegans • †Primitiopsis excavatus • †Primitiopsis minutus • †Prioniodus • †Prioniodus altodus – type locality for species • †Prioniodus gerdae • †Prismopora • †Proallosocrinus • †Proallosocrinus exemptus – type locality for species • †Proallosocrinus glenisteri – type locality for species • †Probnis • †Probnis speciosa • †Probolichas • †Prodentalium • †Productella • †Productella recensis – type locality for species • †Productus • †Productus parvus • †Productus stehlii – type locality for species • †Proetus'' • †Proetus foculus • †Progoneura • †Progoneura grimaldii – type locality for species • †Progoneura nobilis – type locality for species • †Progoneura venula – type locality for species • †Prokopicrinus • †Prokopicrinus laevis • †Prokopicrinus tuberculatus • †Promopalaeaster • †Proshumardites • †Protencrinus • †Protencrinus atoka – type locality for species • †Protereisma • †Protereisma arcuatum – or unidentified comparable form • †Protereisma latum • †Prothalassoceras • †Prothalassoceras inexpectans – type locality for species • †Prothyris • †Prothyris soleniformis – type locality for species • †Protocaptorhinus • †Protocaptorhinus pricei • †Protohaploxypinus • †Protohaploxypinus duivenii • †Protohaploxypinus rugosus • †Protohaploxypinus samoilovichii • †Protohaploxypinus suchonensis – or unidentified comparable form • †Protohymen • †Protohymen anomalus – type locality for species • †Protohymen bifurcatus – type locality for species • †Protohymen curvatus – type locality for species • †Protohymen largus – type locality for species • †Protohymen latus – type locality for species • †Protohymen pictus – type locality for species • †Protohymen readi • †Protohymen shafferi – type locality for species • †Protohymen venustus – type locality for species • †Protozyga • †Protozyga loeblichi • †Prouddenites • †Prouddenites primus • †Pseodorthoceras • †Pseudelmoa – type locality for genus • †Pseudelmoa ampla – type locality for species • †Pseudoconocardium • †Pseudocryptophyllum – or unidentified comparable form • †Pseudodielasma • †Pseudodielasma perplexa • †Pseudoiasvia – type locality for genus • †Pseudoiasvia sinuosa – type locality for species • †Pseudolingula • †Pseudolingula elegantula – or unidentified comparable form • †Pseudolingula imperfecta • †Pseudomera • †Pseudomera barrandei • †Pseudomonotis – tentative report • †Pseudomulceodens • †Pseudomulceodens cancellatus – or unidentified related form • †Pseudoolenoides • †Pseudoolenoides acicaudus • †Pseudoolenoides carterensis – type locality for species • †Pseudoolenoides derbyi – type locality for species • †Pseudooneotodus • †Pseudooneotodus bicornis • †Pseudooneotodus linguicornis • †Pseudoparalegoceras • †Pseudoparalegoceras brazoense • †Pseudopronorites • †Pseudopronorites arkansasense • †Pseudopronorites quinni • †Pseudorthoceras • †Pseudorthoceras knoxense • †Pseudosyrinx • †Pseudosyrinx missouriensis – or unidentified comparable form • †Pseudothoceras • †Pseudozygopleura • †Pseudozygopleura multicostata – tentative report • †Pseudozygopleura peoriense • †Pseudozygopleura plebium – tentative report • †Pseudozygopleura scitula • †Psilokirkbyella • †Psilokirkbyella magnopuncata • †Psophosphaera • †Psophosphaera greeri • †Pteroconus – tentative report • †Pteroconus abbreviatus • †Pteronites • †Pteronites angustatus – or unidentified comparable form • †Pterotocrinus – tentative report • †Pterotocrinus springerensis – type locality for species • †Ptychocladia • †Ptychocladia bassleri • †Ptychopleurella • †Ptychopleurella rugiplicata • †Pudoproetus • †Pudoproetus chappelensis • †Pulchratia • †Pulchrilamina • †Pulchrilamina spinosa • †Punctaparchites • †Punctaparchites rugosus • †Punctatisporites • †Punctatisporites flavus • †Punctatisporites glaber • †Punctatisporites minutus • †Punctatosporites • †Punctatosporites minutus • †Punctospirifer • †Punctospirifer kentuckensis • †Punctospirifer subtexta • †Punctospirifer transversa • †Punctothyris • †Punctothyris kenwoodensis • †Punka • †Punka akoura • †Punka verecunda • †Pustula • †Pustula kenwoodensis – type locality for species • †Pustula oklahomae – type locality for species • †Pycnopora • †Pycnopora ovatipora – type locality for species • †Pygmaeocrinus • †Pyrgocystis ==Q==

• †Quadrocystis • †Quadrocystis graffhami ==R==

• †Raaschia – type locality for genus • †Raaschia oklahomensis – type locality for species • †Rafinesquina • †Raistrickia • †Raistrickia abdita • †Raistrickia aculeata • †Raistrickia aculeolata • †Raistrickia breveinens • †Raistrickia crinita • †Raistrickia crocea • †Rakverella – tentative report • †Ranapeltis • †Ranapeltis rowlandi – type locality for species • †Ranasasus • †Ranasasus brevicephalus • †Ranasasus colossus • †Ranasasus conicus • †Randaynia • †Randaynia leatherburyi • †Raphistoma • †Rayella • †Rayella calvini • †Rayella parva • †Raymondites • †Rayonnoceras • †Rayonnoceras vaughanianum – type locality for species • †Rectifenestella • †Rectifenestella tenax • †Redstonia • †Redstonia cooperi • †Reedops • †Reedops deckeri • †Regulaecystis • †Remopleurides • †Renalcis • †Renaultia • †Rensselaerina • †Rensselaerina haraganana • Reophax • †Reophax oacuhitensis – type locality for species • †Resserella • †Resserella brownsportensis • †Reteocrinus • †Reteocrinus depressus – type locality for species • †Reticestus – tentative report • †Reticestus retiferus • †Reticulaiina • †Reticulariina • †Reticulatisporites • †Reticulatisporites reticulatus • †Reticulopteris • †Reticulopteris muensteri • †Retispira • †Retispira meekiana • †Retispira reticulata – type locality for species • †Rhabdomeson • †Rhabdomeson foerstei – type locality for species • †Rhabdomeson rogersi – type locality for species • †Rhabdomeson ulrichi – type locality for species • †Rhipidomella • †Rhipidomella acutisulcata – type locality for species • †Rhipidomella diminutiva • †Rhipidomella henryhousensis – type locality for species • †Rhipidomella oklahomensis – type locality for species • †Rhipidomella subtriangularis – type locality for species • †Rhipidomelloides • †Rhipidomelloides oblata • †Rhiptosocherma • †Rhiptosocherma improcera • †Rhizomaspora – type locality for genus • †Rhizomaspora divaricata – type locality for species • †Rhizomaspora lemniscata – type locality for species • †Rhizomaspora radiata – type locality for species • †Rhizomospora • †Rhizophyllum • †Rhombocladia • †Rhombopora • †Rhombopora johnsvalleyensis – type locality for species • †Rhombopora nitidula – type locality for species • †Rhopalia • †Rhopalia catenata • †Rhynchonkos'' • †Rhynchonkos stovalli – type locality for species • †Rhynchopora • †Rhynchopora kollari – type locality for species • †Rhynchopora persinuata • †Rhynchospirina • †Rhynchospirina maxwelli – type locality for species • †Rhynchotrema • †Rhynchotrema increbescens – tentative report • †Richardsonites • †Richardsonites richardsonianus – type locality for species • †Rishona • Rogerella'' • †Rollia • †Rollia goodwini • Rostricellula • †Rostricellula cuneata • †Rothella • †Rothella haraganensis – type locality for species • †Rothella obliqua • †Rothella recta • †Rothianiscus • †Rothianiscus robusta – type locality for species • †Roundyella • †Roundyella bellatula • †Rowleyella • †Rowleyella fabulites • †Rugosochinetes • †Rugosochonetes • †Rugosochonetes multicostus ==S==

• †Saccocrinus • †Saccocrinus benedicti • †Saffordotaxis • †Sagenodus • †Sagenodus vinslovi • †Sandia • †Sanguinolites • †Sanguinolites omalianus • †Sanguinolites raleighensis • †Sanguinolites simulans • †Sansabella • †Sansabella keslingi – type locality for species • †Sansabella truncata – or unidentified comparable form • †Sansabelloides • †Sargentina • †Sargentina allani – or unidentified comparable form • †Saucrophyllum • †Scaphiocrinus – tentative report • †Schellwienella • †Schellwienella marcidula • †Schistoceras • †Schistoceras unicum – type locality for species • †Schizambon • †Schizambon perspinosum • †Schizodus • †Schizodus chesterensis • †Schizodus ovatus • †Schizodus texanus • †Schizonema • †Schizonema hami • †Schizophoria • †Schizophoria mayesensis – type locality for species • †Schmidtella • †Schmidtella affinis • †Schmidtella asymmetrica • †Schmidtella brevis • †Schmidtella crassimarginata • †Schmidtella excavata • †Schmidtella minuta • †Schmidtella ovalis • †Schmidtella transversa • †Schopfipollenites • †Schopfipollenites signatus – type locality for species • †Schuchertella • †Schuchertella attentuata • †Schuchertella haraganensis • †Sciadiocrinus • †Sciadiocrinus cascus – type locality for species • †Sciadiocrinus crassacanthus • †Sciadiocrinus planulatus • †Scolecia • †Scolecia filosa • †Scolecopteris • †Scolecopteris altissima • †Scolecopteris gnoma • †scolerodont • †Scolopodus • †Scolopodus oklahomensis – type locality for species • †Scolopodus striatum – type locality for species • †Scutepustula • †Scutepustula arctifossa • †Scyphocrinites • †Scytalocrinus'' • †Scytalocrinus crassibrachiatus – type locality for species • †Scytalocrinus sansabensis • †Sedgwickia • †Sedgwickia rugosa – type locality for species • †Seminolites • †Seminolites kosomensis – type locality for species • †Seminolites perforatus – type locality for species • †Seminolites pushmatahensis – type locality for species • †Seminolithes • †Seminolithes clarkei – type locality for species • †Senftenbergia • †Septimyalina • †Septimyalina burmai • †Septopora • †Seymouria'' • †Seymouria baylorensis • †Shaleria – tentative report • †Shansiella • †Shansiella carbonaria – tentative report • †Shumardoceras • †Sibyrhynchus • †Sieberella • †Sieberella roemeri • †Sievertsia • †Sigillaria'' • †Sigmophlebia – type locality for genus • †Sigmophlebia engeli – type locality for species • †Sillerpeton – type locality for genus • †Sillerpeton permianum – type locality for species • †Sinclairocystis • †Sinclairocystis angulatus • †Sinclairocystis praedicta • †Sinclairocystis sulphurensis • †Sinuitina • †Sinuitina cordiformis – type locality for species • †Sinuopea • †Sinuopea basiplanata • †Sinuopea vera • †Siphonocrinus • †Siphonocrinus dignus • †Skenidioides • †Skenidioides henryhousensis • †Skenidioides oklahomensis • †Skenidioides perfectus • †Skenidium • †Skenidium insigne • Solecurtus'' • †Solecurtus gardneri – type locality for species • Solemya – report made of unidentified related form or using admittedly obsolete nomenclature • †Soleniscus • †Soleniscus primigenia • †Soleniscus regularis • †Solenochilus • †Solenomorpha – tentative report • †Solenomorpha nitida – or unidentified comparable form • †Somoholites • †Sowerbyella • †Sowerbyella indistincta • †Sowerbyella plicatifera • †Sowerbyella variabilis • †Sowerbyella vulgata • †Sowerbyites • †Sowerbyites hami • †Sowerbyites lamellosus • †Spaniocrinus • †Speyeris • †Speyeris hami • †Sphaerexochus'' • †Sphaerexochus glaber • †Sphaerirhynchia • †Sphaerirhynchia glomerosa – type locality for species • †Sphaerirhynchia lindenensis • †Sphaerocoryphe • †Sphaerodoma • †Sphaerodoma gracilis • †Sphaerolepis • †Sphaerolepis arctata • †Sphenophyllum'' • †Sphenophyllum emarginatum • †Sphenophyllum gilmorei • †Sphenophyllum latifolium – or unidentified comparable form • †Sphenophyllum obovatum • †Sphenophyllum stoukenbergi – tentative report • †Sphenopteris • †Sphenopteris macilenta • †Spinobairdia • †Spinocarinifera • †Spinocarinifera semicostata • †Spinosporites • †Spinosporites exiguus • †Spirifer'' • †Spirifer casteri – type locality for species • †Spirifer grimesi • †Spirifer opimus • †Spiriferellina • †Spirillina • †Spirillina bendensis – type locality for species • Spirorbis • †Spirorbis elegans – type locality for species • †Spongophylloides • †Squamularia • †Stacheia • †Stacheia congesta • †Staffella • †Stegerhynchus • †Stegerhynchus carmelensis • †Stegerhynchus clairensis • †Stegerhynchus concinna • †Stegnopsis • †Stegnopsis erythragora – type locality for species • †Stegnopsis wellingensis – type locality for species • †Stegocoelia • †Stellarocrinus • †Stellarocrinus cuneatus • †Stenocladia – tentative report • †Stenocladia bassleri • †Stenopecrinus • †Stenopecrinus ornatus – type locality for species • †Stenopora • †Stephanozyga • †Steptognathodus • †Stereobrachicrinus – type locality for genus • †Stereobrachicrinus pustullosus – type locality for species • †Stereostylus • †Stereostylus perversus • †Stictopora • †Stictopora fenestrata • †Strabocystis – type locality for genus • †Strabocystis fayi – type locality for species • †Straparollus • †Straparolous • †Straparolous catilloides • †Straparolous catiloides • †Streblochondria – tentative report • †Streblochondria tenuilineata • †Strebloplax – type locality for genus • †Strebloplax crustacea – type locality for species • †Streblotrypa • †Streblotrypa nicklesi • †Streptognathodus • †Streptorhynchus • †Striatites • †Striatites richteri • †Striatopodocarpites • †Striatopodocarpites caricicostatus • †Striatopodocarpites communis • †Striatopodocarpites olsonii • †Strigigenalis • †Strigigenalis caudata • †Strigigenalis crassimarginata • †Strigigenalis derbyi • †Strigigenalis implexa • †Strigigenalis insentis • †Strigigenalis knighti – or unidentified comparable form • †Strimplecystis – type locality for genus • †Strimplecystis oklahomensis – type locality for species • †Strixella • †Strixella acutisulcata • †Strobeus • †Strobeus brevis • †Strobeus gouldiana – type locality for species • †Strobeus intercalaris • †Strobeus paludinaeformis • †Stroboceras • †Stroboceras furnishi – type locality for species • †Stromatotrypa • †Stromatotrypa frondosa • †Strongylocrinus • †Strongylocrinus hansoni – type locality for species • †Strongylocrinus ornatus – type locality for species • †Strophochonetes • †Strophomena'' • †Strophomena clermontensis • †Strophomena costellata • †Strophomena crinerensis • †Strophomena neglecta • †Strophomena oklahomensis • †Strophomena perconcava – or unidentified comparable form • †Strophomena planumbona • †Strophomena trentonensis • †Strophonella • †Strophonella alterniradiata • †Strophonella bransoni – type locality for species • †Strophonella laxiplicata • †Strophonella loeblichi • †Strophonella prolongata • †Strophostylus • †Strotersporites – type locality for genus • †Strotersporites communis – type locality for species • †Stylocrinus • †Sulcatisporites • †Sulcatisporites potoniei • †Sylvohymen • †Sylvohymen ingens – type locality for species • †Synchirocrinus • †Synchirocrinus divisus • †Synchirocrinus quadratus • †Synerocrinus • †Synerocrinus farishi • †Syngastrioceras • †Syngastrioceras clinei – type locality for species • †Syngastrioceras scotti • †Syringaxon ==T==

• †Tabulipora • †Tabulipora macnairi – type locality for species • †Tabulipora simplex – type locality for species • †Tabulipora tuberculata – or unidentified comparable form • †Taeniaesporites • †Taeniaesporites noviaulensis – or unidentified comparable form • †Taeniopteris • †Taeniopteris abnormis • †Taeniopteris multinervis • †Tainoceras • †Tainoceras murrayi • †Tanaocystis • †Tanaocystis watkinsi • †Tarphyceras • †Tarphyceras chadwickense • †Teguliferina • †Teguliferina parva – type locality for species • †Tegulocrea • †Tegulocrea incerta • †Teiichispira • †Teiichispira affinis – or unidentified comparable form • †Tellinomorpha • †Tellinomorpha schencki – type locality for species • †Tentaculites'' • †Terpnocrinus • †Tersomius • †Tersomius dolesensis – type locality for species • †Tersomius mosesi – type locality for species • †Tersomius texensis – or unidentified comparable form • †Tetradellina • †Tetradellina henningsmoeni • †Tetrataxis • †Tetrataxis decurrens – or unidentified comparable form • †Tetrataxis lata • Textularia'' • †Textularia grahamensis – or unidentified comparable form • †Thalamocrinus • †Thalamocrinus elongatus • †Thalattocanthus • †Thalattocanthus consonus • †Thaleops • †Thaleops jaanussoni • †Thallograptus • †Thamniscus • †Thamniscus erectus – type locality for species • †Thigriffides • †Thigriffides roundyi • †Thlipsura • †Thlipsura furca • †Thlipsurella • †Thlipsurella fossata • †Thlipsurella muricurva • †Thlipsurella murrayensis – type locality for species • †Thlipsurella putea • †Thlipsuroides • †Thomasatia • †Thomasatia auricula • †Thomasatina • †Thomasatina bromidensis • †Thomasatina simplex • †Thoracoceras • †Thrausmosaurus – type locality for genus • †Thrausmosaurus serratidens – type locality for species • †Thuroholia • †Thuroholia crinerensis • †Thuroholia croneisi • †Thuroholia overbrookensis • †Thymnospora • †Thymnospora pseudothiessenii – or unidentified comparable form • †Thymospora • †Thymospora pseudothiessenii • †Tolypammina • †Torispora • †Torispora securis • †Torynifer • †Trematospira • †Trematospira costata – or unidentified comparable form • †Trematospira hippolyte – or unidentified comparable form • †Trepospira • †Trepospira depressa • †Trigonirhynchia • †Trigonirhynchia acutirostella • †Trimerorhachis'' • †Trimerorhachis insignis • †Triquitrites • †Triquitrites additus • †Triquitrites bransonii • †Triquitrites exiguus • †Triquitrites sculptilis • †Triquitrites spinosus • †Triquitrites subspinosus • †Triquitrites tribullatus • †Tririctus – type locality for genus • †Tririctus reticulatus – type locality for species • †Tritonoceras • †Trochonodella • †Trochonodella obtusa • †Trochosporites – type locality for genus • †Trochosporites reniformis – type locality for species • †Trucherognathus • †Trucherognathus distorta • †Trucherognathus irregularis • †Tryplasma • †Tuberculatosporites • †Tuberculatosporites robustus • †Tubulibairdia • †Tubulibairdia simplex • †Tupus • †Tupus gracilis – type locality for species • †Turgidacystis – type locality for genus • †Turgidacystis graffhami – type locality for species • †Turrilepas • †Turrilepas whithersi – type locality for species ==U==