List of the Paleozoic life of Kansas

This list of the Paleozoic life of Kansas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Kansas and are between 538.8 and 252.17 million years of age.

A

 * †Acanthocladia
 * †Acanthocladia guadalupensis
 * †Acanthocladia lepidodendroides
 * Acanthodes BW.jpg †[[Acanthodes]]
 * †Acanthopecten
 * †Acanthopecten carboniferous
 * †Achistrum
 * †Achistrum brownwoodensis
 * †Acitheca
 * †Acitheca polymorpha
 * †Aclisina
 * †Acratia
 * †Acratia typica
 * Acrodus nobilis Exhibit Museum of Natural History cropped.jpg †[[Acrodus]] – tentative report
 * †Acroplous
 * †Acroplous vorax
 * †Actiobates – type locality for genus
 * †Actiobates peabodyi – type locality for species
 * †Aculeispores
 * †Aculeispores variabilis
 * †Adlatipora
 * †Agassizodus
 * †Agassizodus variabilis
 * †Agetopanorpa – type locality for genus
 * †Agetopanorpa maculata – type locality for species
 * †Aglaocrinus
 * †Aglaocrinus cranei – type locality for species
 * †Ahrensisporites
 * †Aibolitus
 * †Aibolitus minutus – type locality for species
 * †Alatisporites
 * †Alatisporites hexalatus
 * Alethopteris PAMuseum.jpg †[[Alethopteris]]
 * †Alethopteris grandini
 * †Alethopteris serlii
 * †Alethopteris sullivanti
 * †Alisporites
 * †Alisporites plicatus
 * †Alisporites zapfei
 * †Alloiopteris
 * †Allorisma
 * †Allorisma altirostrata – type locality for species
 * †Amelacanthus
 * †Ameura
 * †Ameura missouriensis
 * Ammodiscus – tentative report
 * †Amphiscapha
 * †Amphiscapha muricata
 * †Amphissites
 * †Amphissites centronotus
 * †Amphissites dattonensis
 * † Ananias – tentative report
 * †Ananias welleri – type locality for species
 * †Anapiculatisporites
 * †Anapiculatisporites grandensis
 * †Anapiculatisporites grundensis
 * †Anelcana – type locality for genus
 * †Anelcana dilatata – type locality for species
 * †Anematina
 * †Angulisporites
 * †Angulisporites splendidus
 * Calamitaceae - Annularia stellata.JPG †[[Annularia]]
 * †Annularia asteris
 * †Annularia mucronata
 * †Annularia vernensis
 * †Anomalogramma – type locality for genus
 * †Anomalogramma parva – type locality for species
 * †Anormochorista – type locality for genus
 * †Anormochorista oligoclada – type locality for species
 * †Anthracomartus
 * †Anthraconeilo
 * †Anthraconeilopis
 * †Anthraconeilopis kansana
 * †Anthraconeilopsis – tentative report
 * †Anthraconeilopsis kansana
 * †Anthracospirifer
 * †Anthracospirifer occiduus
 * †Antiquatonia
 * †Antiquatonia portlockianus
 * †Apheloneura – type locality for genus
 * †Apheloneura amplia – type locality for species
 * †Apheloneura minutissima – type locality for species
 * †Aphlebia
 * †Apiculatasporites
 * †Apiculatasporites compactus
 * †Apiculatasporites latigranifer
 * †Apiculatasporites setulosus
 * †Apiculatasporites spinulistratus
 * †Apiculatisporites
 * †Apographiocrinus
 * †Apsidoneura – type locality for genus
 * †Apsidoneura flexa – type locality for species
 * †Araeonema
 * †Araucarites – tentative report
 * Archaeolithophyllum
 * †Archaeophiomusium
 * †Archaeophiomusium burrisi
 * ArchaeovenatorDB.jpg †[[Archaeovenator]] – type locality for genus
 * †Archaeovenator hamiltonensis – type locality for species
 * †Archelytron – type locality for genus
 * †Archelytron superbum – type locality for species
 * †Archescytina – type locality for genus
 * †Archescytina kansasensis – type locality for species
 * †Archescytina muiri – type locality for species
 * †Archescytina permiana – type locality for species
 * †Archimylacris
 * †Archimylacris recta – type locality for species
 * †Aristoceras
 * †Aristoceras caddoense – or unidentified comparable form
 * †Artinska – type locality for genus
 * †Artinska clara – type locality for species
 * †Artinska ovata – type locality for species
 * †Artinska sellardsi – type locality for species
 * †Artinskia
 * †Artinskia whortani – type locality for species
 * †Artisia
 * †Astartella
 * †Astartella concentrica
 * †Asterophyllites
 * †Asterophyllites equisetiformis
 * †Asterophyllites longifolius
 * †Asterotheca
 * †Asterotheca arborescens
 * †Asterotheca hemiteloides – or unidentified comparable form
 * †Asterotheca miltoni – or unidentified comparable form
 * †Asthenohymen – type locality for genus
 * †Asthenohymen affinis – type locality for species
 * †Asthenohymen dunbari – type locality for species
 * †Asthenohymen gracilis – type locality for species
 * †Asthenohymen kansasensis – type locality for species
 * †Asthenohymen pusillus – type locality for species
 * †Asthenohymen stenobasis – type locality for species
 * †Asthenohymen stigmatizans – type locality for species
 * †Atava – type locality for genus
 * †Atava ovata – type locality for species
 * †Aurikirkbya
 * †Aurikirkbya canyonensis
 * †Aurikirkbya wymani – type locality for species
 * †Aviculipinna – tentative report
 * Aviculopecten subcardiformis01.JPG †[[Aviculopecten]]
 * †Aviculopecten arctisulcatus
 * †Aviculopecten mccoyi – type locality for species
 * †Aviculopecten nodocosta
 * †Aviculopecten nodocostata
 * †Aviculopecten occidentalis
 * †Aviculopecten peculiaris – type locality for species
 * †Aviculopecten rectilaterarius
 * †Aviculopecten sumnerensis – type locality for species
 * †Aviculopinna
 * †Aviculopinna peracuta
 * †Axophyllum –

B

 * †Bactrites
 * Bairdia
 * †Bairdia beedei – type locality for species
 * †Bairdia chasae – type locality for species
 * †Bairdia crassa
 * †Bairdia florenaensis
 * †Bairdia folgeri
 * †Bairdia forakerensis – type locality for species
 * †Bairdia garrisonensis
 * †Bairdia geisi – type locality for species
 * †Bairdia grahamensis – type locality for species
 * †Bairdia hassi
 * †Bairdia hoffmanae – type locality for species
 * †Bairdia hooverae – type locality for species
 * †Bairdia hurwitzi
 * †Bairdia kansasensis – type locality for species
 * †Bairdia kanwakensis – type locality for species
 * †Bairdia nevensis – type locality for species
 * †Bairdia perincerta – type locality for species
 * †Bairdia pompilioides
 * †Bairdia powersi – type locality for species
 * †Bairdia pseudoglennensis – type locality for species
 * †Bairdia radlerae – type locality for species
 * †Bairdia reussiana
 * †Bairdia seminalis
 * †Bairdia symmetrica
 * †Bairdia verwiebei – type locality for species
 * †Bairdia whortani – type locality for species
 * †Balteosporites
 * †Balteosporites minutus
 * †Basslerella – type locality for genus
 * †Basslerella crassa – type locality for species
 * †Basslerella firma – type locality for species
 * †Basslerella obesa – type locality for species
 * †Basslerella rothi – type locality for species
 * Belantsea montana.JPG †[[Belantsea]] – or unidentified comparable form
 * †Belantsea occidentalis
 * †Bellerophon
 * †Bellerophon graphicus – type locality for species
 * †Bellerophon singularis – type locality for species
 * †Blattelytron – type locality for genus
 * †Blattelytron permianum – type locality for species
 * †Blattinopsis
 * †Blattinopsis kukalovae – type locality for species
 * †Blattoidea
 * †Blattoidea juvenis – type locality for species
 * †Bobbodus
 * †Bobbodus schaefferi
 * †Boesites
 * †Boesites texanus
 * Botryococcus braunii.jpg †[[Botryococcus]]
 * †Botryococcus braunii
 * †Bradyina
 * †Bransonella
 * †Bucanopsis
 * †Bythiacanthus
 * Bythocypris
 * †Bythocypris osagensis – type locality for species

C

 * †Cadiospora
 * †Cadiospora magna
 * Calamites stems.JPG †[[Calamites]]
 * †Calamites cistii
 * †Calamocarpon
 * †Calamocarpon insignis
 * †Calamospora
 * †Calamospora breviradiata
 * †Calamospora flexilis
 * †Calamospora hartungiana
 * †Calamospora mutabilis
 * †Calamospora pedata
 * †Calamospora pusilla
 * †Calamospora straminea
 * †Callipteris
 * †Callipteris conferta
 * †Callipteris curretiensis – or unidentified comparable form
 * †Callipteris flabellifera
 * †Callipteris goepperti – or unidentified comparable form
 * †Callipteris jutieri – or unidentified comparable form
 * †Callipteris lyratifolia – tentative report
 * †Callipteris oxydata
 * †Callipteris scheibei
 * †Callipteris subauriculata
 * †Callipteris whitei
 * †Callistophyton
 * †Calvertiella – type locality for genus
 * †Calvertiella permiana – type locality for species
 * †Camptotaxineura – type locality for genus
 * †Camptotaxineura ephialtes – type locality for species
 * †Camptotriletes
 * †Cancrinella
 * †Cancrinella boonensis
 * †Carbonita – tentative report
 * †Carbonita tumida
 * †Carinostrobus – type locality for genus
 * †Carinostrobus foresmani – type locality for species
 * †Carpolithes
 * Caseodus cropped.png †[[Caseodus]]
 * †Caseodus eatoni
 * †Caulopteris
 * †Cavellina
 * †Cavellina chasensis – type locality for species
 * †Cavellina edmistonae
 * †Cavellina fittsi – type locality for species
 * †Cavellina marmorea – type locality for species
 * †Cavellina nebrascensis
 * †Centonites
 * †Centonites symmetricus
 * †Chaenomya
 * †Chaenomya leavenworthensis – tentative report
 * †Chaetetes
 * †Chaetetes milleporaceous
 * †Chelopterum
 * †Chelopterum peregrinum
 * †Chomatodus
 * †Chonetella
 * †Chonetella flemingi
 * †Chonetes
 * †Chonetes decipiens
 * †Chonetes euampygus
 * †Chonetes lioderma
 * †Chonetes mesoloba
 * †Chonetina
 * †Chonetina flemingii
 * †Chonetinella
 * †Choristosialis – type locality for genus
 * †Choristosialis enigmatica – type locality for species
 * †Cibolocrinus
 * †Circulichnis
 * †Circulichnis montanus
 * †Cirratriradites
 * †Cirratriradites annulatus
 * †Cirratriradites annuliformis
 * †Cirratriradites maculatus
 * Cladodont-tooth-cladodus-belifer.jpg †[[Cladodus]]
 * Cladophlebis
 * †Cladophlebis tenuis – or unidentified comparable form
 * †Clavicosta – type locality for genus
 * †Clavicosta echinata – type locality for species
 * †Cleiothyridina
 * †Cleiothyridina orbicularis
 * †Climacammina
 * †Clinopistha
 * †Colpites – tentative report
 * †Colpites monilifera
 * †Columinisporites
 * †Columinisporites ovalis
 * †Complexisporites
 * †Complexisporites polymorphus
 * Compositafossil.jpg †[[Composita]]
 * †Composita elongata
 * †Composita ovata
 * †Composita subtilita
 * †Condranema
 * †Condranema magna
 * †Condranema parvula
 * †Condrathyris
 * †Condrathyris perplexa
 * †Converrucosisporites
 * †Convolutispora
 * †Convolutispora venusta
 * †Cooleyella
 * †Cooleyella quinqueloba – type locality for species
 * †Cooleyella simplex – type locality for species
 * †Cooperella
 * †Cooperella striata – type locality for species
 * †Cordaianthus
 * †Cordaianthus pitcairniae – or unidentified comparable form
 * †Cordaicarpus
 * Cordaites fossil cropped.png †[[Cordaites]]
 * †Cordaites principalis
 * †Cordaitina
 * †Cornigella
 * †Cornigella binoda – type locality for species
 * †Cornigella parva – type locality for species
 * †Corniops – type locality for genus
 * †Corniops mapesii – type locality for species
 * †Coryellina
 * †Coryellina firma – type locality for species
 * †Crassispora
 * †Crassispora kosankei
 * †Crinoedischia – type locality for genus
 * †Crinoedischia buttsi – type locality for species
 * †Cristatisporites
 * †Crurithyris
 * †Crurithyris expansa
 * †Crurithyris planoconvexa
 * †Crurithyris subtilita
 * †Cryptoscorpius – type locality for genus
 * †Cryptoscorpius americanus – type locality for species
 * Ctenacanthus major Agassiz.png †[[Ctenacanthus]]
 * †Ctenacanthus amblyxiphias
 * †Cyathus
 * †Cyathus ulrichi
 * †Cycadospadix
 * †Cyclogranisporites
 * †Cyclogranisporites aureus
 * †Cyclogranisporites microgranus
 * †Cyclogranisporites minutus
 * †Cyclogranisporites obliquus
 * †Cyclogranisporites orbicularis
 * †Cyclogranisporites staplinii
 * †Cyclopteris
 * †Cyclotrypa
 * †Cyclotrypa pelagia
 * †Cymatospira
 * †Cymatospira montfortianus
 * †Cyphoneura – type locality for genus
 * †Cyphoneura permiana – type locality for species
 * †Cyphoneurodes
 * †Cyphoneurodes reducta – type locality for species
 * †Cypridellina
 * †Cypridellina newelli – type locality for species
 * †Cystodictya –

D

 * †Dasyleptus – type locality for genus
 * †Dasyleptus artinskianus – type locality for species
 * †Dasyleptus sharovi – type locality for species
 * †Delocrinus
 * †Delocrinus admirensis
 * †Delocrinus vulgatus
 * †Delopsocus
 * †Delopsocus elongatus – type locality for species
 * †Delopsocus fasciatus – type locality for species
 * †Delopsocus kansanum – type locality for species
 * †Delopterum – type locality for genus
 * †Delopterum latum – type locality for species
 * †Delopterum minutum – type locality for species
 * †Deltodus
 * †Deltodus angularis – or unidentified comparable form
 * †Deltoidospora
 * †Deltoidospora adnata
 * †Deltoidospora gracilis
 * †Deltoidospora grandis
 * †Deltoidospora levis
 * †Deltoidospora priddyi
 * †Deltoidospora pseudolevis
 * †Deltoidospora smithii
 * †Deltoidospora sphaerotriangula
 * †Deltoidospora subadnatoides
 * †Deltoidospora subintorta
 * †Demopterum
 * †Demopterum gracile
 * †Dendroidichnites
 * †Dendroidichnites irregulare
 * †Densosporites
 * †Densosporites sphaerotriangularis
 * Dentalium octangulatum 01.JPG †[[Dentalium (genus)|Dentalium]]
 * †Dentalium kansasense
 * †Derbyia
 * †Derbyia crassa
 * †Derbyia cymbula
 * †Derbyia cymula
 * †Derbyia hooserensis
 * †Derbyia wabaunseensis
 * †Desmiodus
 * †Desmoinesia
 * †Desmoinesia muricatina
 * †Desmoinesia nana
 * †Desmoinsea
 * †Dibuniphyllum
 * †Dibunophyllum
 * †Dichentomum – type locality for genus
 * †Dichentomum complexum – type locality for species
 * †Dichentomum grande – type locality for species
 * †Dichentomum latum – type locality for species
 * †Dichentomum minimum – type locality for species
 * †Dichentomum parvulum – type locality for species
 * †Dichentomum tinctum – type locality for species
 * †Dichophyllum
 * †Dichophyllum moorei
 * †Dicksonites
 * †Dicksonites pluckenetii
 * †Dictyoclostus
 * †Dictyomylacris – type locality for genus
 * †Dictyomylacris multinervis – type locality for species
 * †Dielasma
 * †Dielasma bovidens
 * †Dinoblatta
 * †Dinoblatta scudderi – type locality for species
 * Diplichnites mcr1.jpg †[[Diplichnites]]
 * †Diplichnites gouldi
 * †Diplopodichnus
 * †Diplopodichnus biformis
 * †Ditaxineura – type locality for genus
 * †Ditaxineura anomalostigma – type locality for species
 * †Ditaxineura cellulosa
 * †Ditomopyge – tentative report
 * †Ditomopyge decurtata
 * †Ditomopyge scitulus – tentative report
 * †Donaldina
 * †Doter – type locality for genus
 * †Doter minor – type locality for species
 * †Ductilodon – type locality for genus
 * †Ductilodon pruitti – type locality for species
 * †Dunbarella
 * †Dunbarella striata
 * †Dunbaria – type locality for genus
 * †Dunbaria fasciipennis – type locality for species

E

 * †Echinaria
 * †Echinaria moorei
 * †Echinoconchus
 * †Echinoconchus semipunctatus
 * †Economolopsis
 * †Economolopsis anodontoides – tentative report
 * Edestus protopirata1DB.jpg †[[Edestus]]
 * †Edestus heinrichi – or unidentified comparable form
 * †Edmondia
 * †Edmondia nebrascensis
 * †Elibatocrinus
 * †Ellipsella
 * †Ellipsella distenta – type locality for species
 * †Elmoa – type locality for genus
 * †Elmoa trisecta – type locality for species
 * †Elmoboria – type locality for genus
 * †Elmoboria piperi – type locality for species
 * †Elmopterum – type locality for genus
 * †Elmopterum rotundum – type locality for species
 * †Elmothone – type locality for genus
 * †Elmothone martynovae – type locality for species
 * †Elytroneura
 * †Elytroneura permiana
 * †Emilites
 * †Emilites incertus
 * †Endelocrinus
 * †Endelocrinus rotundus
 * †Endosporites
 * †Endosporites globiformis
 * †Endosporites plicatus
 * †Endothyra
 * †Enteletes
 * †Enteletes hemiplicata
 * †Eoasianites
 * Eocasea NT small.jpg †[[Eocasea]] – type locality for genus
 * †Eocasea martini – type locality for species
 * †Eohaptodus
 * †Eohaptodus garnettensis – type locality for species
 * †Eolissochonetes
 * †Eoryodus
 * †Eoscopus – type locality for genus
 * †Eoscopus lockardi – type locality for species
 * †Erisocrinus
 * †Etoblattina
 * †Etoblattina coriacea – type locality for species
 * †Etoblattina fulva – type locality for species
 * †Etoblattina obscura – type locality for species
 * †Euchondria
 * †Euchondria pellucida – tentative report
 * †Euchoroptera – type locality for genus
 * †Euchoroptera longipennis – type locality for species
 * †Euconcordia – type locality for genus
 * †Euconcordia cunninghami – type locality for species
 * †Euconospira
 * †Euonychocrinus
 * †Euphemites
 * †Euphemites carbonarius
 * †Euphemites graffhami – type locality for species
 * †Euphemites regulatus – type locality for species
 * †Euprioniodina
 * †Exocrinus
 * †Exoriocrinus –

F
†Fusulina
 * †Fabalicypris
 * †Fabalicypris acetalata
 * †Fabalicypris glennensis
 * †Fabalicypris hoxbarensis
 * †Fenestella
 * †Fenestella artior
 * †Fenestella cruciformis
 * †Fenestella gaptankensis
 * †Fenestella mimica
 * †Fenestrellina
 * †Filiramoporina – type locality for genus
 * †Filiramoporina kretaphilia – type locality for species
 * †Fimbrinia
 * †Fissodus
 * †Fissodus dentatus – type locality for species
 * †Fistulipora
 * †Fistulipora carbonaria
 * †Fistulipora incrustans
 * †Florinites
 * †Florinites mediapudens
 * †Florinites millotti
 * †Florinites similis
 * †Florinites triletus
 * †Florinites visendus
 * †Florinites volans
 * †Foveosporites
 * †Foveosporites insculptus
 * †Fusulina cylindrica

G

 * †Galateacrinus
 * †Garnettius
 * †Garnettius hungerfordi – type locality for species
 * †Geinitzina
 * †Gelasopteron – type locality for genus
 * †Gelasopteron gracile – type locality for species
 * Bakevelliidae - Gervillia inflata.JPG †[[Gervillia]]
 * †Gervillia longa – or unidentified comparable form
 * †Girtycoelia
 * †Glabrocingulum
 * †Glabrocingulum grayvillense
 * †Glaphyrites
 * †Glaphyrites welleri
 * †Glaphyrophlebia – type locality for genus
 * †Glaphyrophlebia ovata – type locality for species
 * †Glaphyrophlebia speciosa – type locality for species
 * †Glaukosocrinus
 * †Glenopteris
 * †Glenopteris lineata
 * †Glenopteris lobata
 * †Glenopteris splendens
 * †Glenopteris sterlingi
 * Glikmanius1DB.jpg †[[Glikmanius]]
 * †Glikmanius occidentalis
 * †Globovalvulina
 * †Glyptopleura
 * †Glyptopleura triserta
 * †Gomphostrobus
 * †Goniasma
 * †Goniasma lasallense
 * †Gonioglyphioceras
 * †Gonioloboceras
 * †Gonioloboceras goniolobus
 * †Gordia
 * †Gordia indianaensis
 * †Graffhamicrinus
 * †Graffhamicrinus magnificus
 * †Graffhamicrinus profundus – type locality for species
 * †Graffhamicrinus waughi – or unidentified comparable form
 * †Granasporites
 * †Granasporites medius
 * †Granulatisporites
 * †Granulatisporites adnatoides
 * †Granulatisporites granularis
 * †Granulatisporites granulatus
 * †Granulatisporites livingstonensis
 * †Granulatisporites microgranifer
 * †Granulatisporites minutus
 * †Granulatisporites pallidus
 * †Granulatisporites pannosites
 * †Granulatisporites parvus
 * †Granulatisporites verrucosus
 * †Graphiocrinus
 * †Graphiocrinus kansasensis
 * †Gunnellodus
 * †Gunnellodus bellistriatus – type locality for species

H

 * †Haenoblattina – type locality for genus
 * †Haenoblattina rarinervis – type locality for species
 * †Haenoblattina tenuis – type locality for species
 * †Hamiapollenites
 * †Hamiltonichthys – type locality for genus
 * †Hamiltonichthys mapesi – type locality for species
 * †Hammondella – type locality for genus
 * †Hammondella crassa – type locality for species
 * †Hammondella globosa – type locality for species
 * †Haworthina – type locality for genus
 * †Haworthina bulleta
 * †Healdia
 * †Healdia compressa – type locality for species
 * †Healdia cuneata
 * †Healdia parallela – type locality for species
 * †Healdia simplex
 * †Healdia winfieldensis
 * †Helminthoidichnites
 * †Helminthoidichnites tenius
 * Helminthopsis01.JPG †[[Helminthopsis]]
 * †Helminthopsis heiroglyphica
 * †Heslerodus
 * †Heslerodus divergens
 * †Hesperoherpeton – type locality for genus
 * †Hesperoherpeton garnettense – type locality for species
 * †Heteroptilon – type locality for genus
 * †Heteroptilon costale – type locality for species
 * †Hollinella
 * †Hollinella burlingamensis – type locality for species
 * †Hollinella cushmani – type locality for species
 * †Holmesella
 * †Holmesella crassa – type locality for species
 * †Holmesella quadrata
 * †Homocladus – type locality for genus
 * †Homocladus grandis – type locality for species
 * †Hpyselentoma
 * †Hpyselentoma perhumerosa
 * †Hustedia
 * †Hustedia mormoni
 * Hybodus fraasi (fossil).jpg  †[[Hybodus]]
 * †Hypermegethes
 * †Hypermegethes pilchi – type locality for species
 * †Hystriculina
 * †Hystriculina hystricula
 * †Hystriculina wabashensis

I

 * Ianthasaurus BW.jpg †[[Ianthasaurus]] – type locality for genus
 * †Ianthasaurus hardestiorum – type locality for species
 * †Ianthinopsis
 * †Ianthodon – type locality for genus
 * †Ianthodon schultzei – type locality for species
 * †Illinites
 * †Illinites unicus
 * †Imitoceras
 * †Imitoceras grahamense
 * †Isogramma
 * †Isogramma millepunctata –

J

 * Janassa bituminosa.jpg †[[Janassa]]
 * †Jedria
 * †Jedria ventrica
 * †Jonesina
 * †Jonesina howardensis – type locality for species
 * †Jonesina primitioides
 * †Juresania
 * †Juresania nebrascensis2

K

 * †Kallimorphocrinus
 * †Kansasia – type locality for genus
 * †Kansasia pulchra – type locality for species
 * †Kansasoedischia
 * †Kansasoedischia maculata – type locality for species
 * Kawichthys moodiei.png †[[Kawichthys]] – type locality for genus
 * †Kawichthys moodiei – type locality for species
 * †Kellettella
 * †Kellettella navicula
 * †Kellettina
 * †Kellettina robusta – type locality for species
 * †Kennedya – type locality for genus
 * †Kennedya mirabilis – type locality for species
 * †Kennedya reducta – type locality for species
 * †Kennedya tillyardi – type locality for species
 * †Kenomagnathus – type locality for genus
 * †Kenomagnathus scotti – type locality for species
 * †Kewaneesporites
 * †Kewaneesporites patulus
 * †Kindlella
 * †Kindlella minuta
 * †Kirkbya
 * †Kirkbya clarocarinata
 * †Kirkbya firma – type locality for species
 * †Kirkbya moorei – type locality for species
 * †Kirkbya pergrandis – type locality for species
 * †Kirkbya punctata – type locality for species
 * †Kirkbya valida – type locality for species
 * †Kirkella
 * †Kirkella elliptica – type locality for species
 * †Knightina
 * †Knightina ampla – type locality for species
 * †Knightina bassleri – type locality for species
 * †Knightina harltoni – type locality for species
 * †Knightina incurva – type locality for species
 * †Knightina texana
 * †Knightinella
 * †Knightinella humerosa – type locality for species
 * †Knightites – type locality for genus
 * †Knightites multicornutus – type locality for species
 * †Knoxisporites
 * †Knoxisporites stephanephorus
 * Fossil horseshoe crab dead in its tracks.jpg at the end of the trackway that it produced of the ichnogenus Kouphichnium]] †Kouphichnium''
 * †Kouphichnium isp.
 * †Kozlowskia
 * †Kozlowskia splendens
 * †Kutorginella
 * †Kutorginella lasallensis – or unidentified comparable form

L

 * †Laevigatosporites
 * †Laevigatosporites desmoinesensis
 * †Laevigatosporites globosus
 * †Laevigatosporites medius
 * †Laevigatosporites moinesensis
 * †Laevigatosporites ovalis
 * †Laevigatosporites vulgaris
 * †Lagarodus
 * †Lagarodus angustus
 * †Latosporites
 * †Latosporites minutus
 * †Lawrenciella – type locality for genus
 * †Lawrenciella schaefferi – type locality for species
 * †Lebachia
 * †Lebachia garnettensis
 * †Lebachia lockardii
 * †Lecopterum – type locality for genus
 * †Lecopterum delicosum – type locality for species
 * †Lecorium – type locality for genus
 * †Lecorium elongatum – type locality for species
 * †Lecythiocrinus
 * †Lemmatophora – type locality for genus
 * †Lemmatophora typa – type locality for species
 * †Lepetopsis
 * †Lepetopsis peregrina – type locality for species
 * Stigmaria Heimans.jpg †[[Lepidodendron]]
 * †Leptalosia
 * †Leptalosia ovalis
 * †Limitisporites
 * †Limitsporites
 * †Lindstroemella – tentative report
 * †Lingula
 * †Lingula carbonaria
 * †Lingula osagensis
 * †Linipalus
 * †Linipalus magnispinus
 * †Linoproductus
 * †Linoproductus insinuatus
 * †Linoproductus magnispina
 * †Linoproductus prattenianus
 * †Linopteris
 * †Linopteris neuropteroides – or unidentified comparable form
 * †Liomopterum – type locality for genus
 * †Liomopterum elongatum – type locality for species
 * †Liomopterum ornatum – type locality for species
 * †Liomopterum sellardsi – type locality for species
 * †Lisca – type locality for genus
 * †Lisca minuta – type locality for species
 * †Lissochonetes
 * †Lissochonetes geinitzianus
 * †Lissochonetes geroniticus
 * †Lissochonetes geronticus
 * †Lissodus
 * Listracanthus hystrix.JPG †[[Listracanthus]]
 * †Listracanthus hystrix
 * †Lithopanorpa
 * †Lithopanorpa pusilla – type locality for species
 * Lithophaga
 * †Lithopsocidium – type locality for genus
 * †Lithopsocidium permianum – type locality for species
 * †Lithoscytina – type locality for genus
 * †Lithoscytina cubitalis – type locality for species
 * †Lophamplexus
 * †Lophamplexus brevifolius
 * †Lophamplexus phractus – type locality for species
 * †Lophamplexus ulius – type locality for species
 * †Lophamplexus vagus
 * †Lophamplexus westii
 * †Lophophyllidium
 * †Lophophyllidium absitum – type locality for species
 * †Lophophyllidium compressum
 * †Lophophyllidium distortum – type locality for species
 * †Lophophyllidium hadrum
 * †Lophophyllidium profundum
 * †Lophophyllidium wewokanum
 * †Lophophyllum
 * †Lophotriletes
 * †Lophotriletes commissuralis
 * †Lophotriletes copiosus
 * †Lophotriletes gibbosus
 * †Lophotriletes ibrahimii
 * †Lophotriletes microsaetosus
 * †Lophotriletes mosaicus
 * †Lophotriletes pseudaculeatus
 * †Lophotriletes rarispinosus
 * †Lycodus – type locality for genus
 * †Lycodus garretti – type locality for species
 * †Lycospora
 * †Lycospora brevijuga
 * †Lycospora granulata
 * †Lycospora micropapillata
 * †Lycospora ovalis
 * †Lycospora pellucida
 * †Lycospora pusilla
 * †Lycospora rotunda
 * Lysorophus.jpg †[[Lysorophus]] –

M

 * Macrocypris
 * †Macrocypris garrisonensis
 * †Macrocypris menardensis
 * †Mapesites – type locality for genus
 * †Mapesites chautauquaensis – type locality for species
 * †Marginifer
 * †Marginifer wabashensis
 * †Marginifera
 * †Marginifera wabashenis
 * †Mariopteris
 * †Marmolatella
 * †Marmolatella subovata
 * †Martynovia – type locality for genus
 * †Martynovia insignis – type locality for species
 * †Martynovia protohymenoides – type locality for species
 * †Meekechinus – type locality for genus
 * †Meekechinus elegans – type locality for species
 * †Meekella
 * †Meekella striaticostata
 * †Meekella striatocostata
 * †Meekopora
 * †Meekopora prosseri
 * †Meekoporella
 * †Meekoporella dehiscens
 * †Meekospira
 * †Megactenopetalus
 * †Megactenopetalus kaibabanus
 * †Meganeuropsis – type locality for genus
 * †Meganeuropsis permiana – type locality for species
 * †Megatypus – type locality for genus
 * †Megatypus ingentissimus – type locality for species
 * †Megatypus parvus – type locality for species
 * †Megatypus schucherti – type locality for species
 * †Megatypus vetustus – type locality for species
 * †Megelytron – type locality for genus
 * †Megelytron robustum – type locality for species
 * †Mesolobus
 * †Mesoptilus
 * †Mesoptilus carpenteri – type locality for species
 * Metacoceras discoideum 01.jpg †[[Metacoceras]]
 * †Michelinia – tentative report
 * †Microantyx
 * †Microantyx permiana – type locality for species
 * †Microcheilinella
 * †Microcheilinella inflata – type locality for species
 * †Microreticulatisporites
 * †Microreticulatisporites concavus
 * †Microreticulatisporites harrisonii
 * †Microreticulatisporites nobilis
 * †Microreticulatisporites noblis
 * †Microreticulatisporites sulcatus
 * †Millerella
 * †Millerella inflata
 * †Minilya
 * †Minilya binodata
 * †Mirandaichnium
 * †Mirandaichnium famatinense
 * †Misthodotes – type locality for genus
 * †Misthodotes biguttatus – type locality for species
 * †Misthodotes delicatulus – type locality for species
 * †Misthodotes obtusus – type locality for species
 * †Misthodotes ovalis – type locality for species
 * Mytilidae - Modiolus species.JPG, or horsemussel]] †Modiolus''
 * †Monoceratina
 * †Monoceratina lewisi
 * †Monopteria
 * †Monopteria gibbosa
 * †Mooreisporites
 * †Mooreisporites inusitatus
 * †Mooreoceras
 * †Moorites
 * †Moorites minutus
 * †Muensteroceras
 * †Multithecopora
 * †Murospora
 * †Murospora kosankei
 * †Myalina
 * †Myalina meeki – type locality for species
 * †Myalina swallowi
 * †Mylacris
 * †Mylacris latissima – type locality for species

N

 * Neritopsidae - Naticopsis.JPG †[[Naticopsis]]
 * †Neoaganides
 * †Neoaganides grahamensis
 * †Neochonetes
 * †Neochonetes granulifer
 * †Neodimorphoceras
 * †Neodimorphoceras texanum
 * †Neospirifer
 * †Neospirifer cameratus
 * †Neospirifer dunbari
 * †Neospirifer kansasensis
 * Neuropteris PAMuseum.jpg †[[Neuropteris]]
 * †Neuropteris auriculata – tentative report
 * †Neuropteris odontopteroides
 * †Neuropteris ovata
 * †Neuropteris permiana
 * †Neuropteris scheuchzeri
 * †Noeggerathia
 * †Norwoodia
 * †Norwoodia angustum
 * Nucula
 * Nuculana
 * †Nuculopsis
 * †Nugonioneura – type locality for genus
 * †Nugonioneura problematica – type locality for species

O

 * †Odonopteris
 * †Odonopteris minor
 * †Odontopteris
 * †Odontopteris brardii
 * †Odontopteris excelsa
 * †Oligotypus – type locality for genus
 * †Oligotypus tillyardi – type locality for species
 * †Omphalotrochus
 * †Omphalotrochus obtusispira
 * †Omphalotrochus wolfcampensis
 * Ophiacodon mirus cropped.png †[[Ophiacodon]] – type locality for genus
 * †Ophiacodon hilli – type locality for species
 * †Opisthocladus – type locality for genus
 * †Opisthocladus arcuatus – type locality for species
 * †Opisthocladus strictus – type locality for species
 * †Opter – type locality for genus
 * †Opter brongniartii – type locality for species
 * †Orbiculoidea
 * †Orbiculoidea capuliformis
 * †Orbiculoidea missouriensis
 * †Orbiculoidea tenulineata – or unidentified comparable form
 * Orodus sp1DB.jpg †[[Orodus]]
 * †Orthacanthus
 * †Orthomyalina
 * †Orthomyalina slocomi
 * †Orthomyalina subquadrata
 * †Orthopsocus – type locality for genus
 * †Orthopsocus singularis – type locality for species
 * †Osagia –

P

 * †Pachytesta
 * †Palaeocaudina
 * †Palaeocaudina kansasensis
 * †Palaeolima
 * †Palaeolima retifera – tentative report
 * †Palaeoneilo
 * Palaeoniscus vratislavensis.JPG]] †Palaeoniscus''
 * †Palaeopisthacanthus
 * †Palaeopisthacanthus vogelandurdeni – type locality for species
 * †Palaeostachya
 * †Palaeostachya andrewsii
 * †Palaeostachys
 * †Palaeostachys andrewsii
 * †Palaeostylus
 * †Paleolimulus – type locality for genus
 * †Paleolimulus signatus – type locality for species
 * †Paleoscytina – type locality for genus
 * †Paleoscytina brevistigma – type locality for species
 * †Paleostachya
 * †Paleuthygramma
 * †Paleuthygramma acuta – type locality for species
 * †Paleyoldia
 * †Paleyoldia subscitula
 * †Parablattelytron – type locality for genus
 * †Parablattelytron delicatum – type locality for species
 * †Parablattelytron elongatum – type locality for species
 * †Parablattelytron latum
 * †Parablattelytron rectum – type locality for species
 * †Parablattelytron subincisum – type locality for species
 * †Parabrodia – type locality for genus
 * †Parabrodia carbonaria – type locality for species
 * †Paracladus – type locality for genus
 * †Paracladus retardatus – type locality for species
 * †Paraconularia
 * †Paragassizocrinus
 * †Parajuresania
 * †Parajuresania nebrascensis
 * †Parallelodon
 * †Paramphicrinus
 * †Paraparchites
 * †Paraparchites humerosus
 * †Paraparchites magnus – type locality for species
 * †Paraparchites perminutus – type locality for species
 * †Paraparchites punctatus – type locality for species
 * †Paraprisca – type locality for genus
 * †Paraprisca fragilis – type locality for species
 * †Paraprisca grandis – type locality for species
 * †Paroedischia – type locality for genus
 * †Paroedischia recta – type locality for species
 * †Parvispina – type locality for genus
 * †Parvispina harpago – type locality for species
 * Pecopteris villosa.jpg †[[Pecopteris]]
 * †Pecopteris bucklandi – tentative report
 * †Pecopteris geinitzi – or unidentified comparable form
 * †Pecopteris hemitelioides
 * †Pecopteris pinnatifida
 * †Pecopteris polymorpha
 * †Pecopteris unita
 * †Penniretepora
 * †Penniretepora auernigiana
 * †Penniretepora curvula – type locality for species
 * †Penniretepora flexistriata – type locality for species
 * †Penniretepora nodocarinata – type locality for species
 * †Penniretepora nodolineata – type locality for species
 * †Penniretepora pustulosa
 * †Pennoceras – tentative report
 * †Permelytron – type locality for genus
 * †Permelytron schucherti – type locality for species
 * †Permelytropsis – type locality for genus
 * †Permelytropsis cubitalis – type locality for species
 * †Permembia – type locality for genus
 * †Permembia delicatula – type locality for species
 * †Permoberotha – type locality for genus
 * †Permoberotha villosa – type locality for species
 * †Permobiella – type locality for genus
 * †Permobiella perspicua – type locality for species
 * †Permoblattina – type locality for genus
 * †Permoblattina curta – type locality for species
 * †Permoblattina permiana – type locality for species
 * †Permohymen – type locality for genus
 * †Permohymen schucherti – type locality for species
 * †Permoneura – type locality for genus
 * †Permoneura lameerei – type locality for species
 * †Permopanorpa
 * †Permopanorpa formosa – type locality for species
 * †Permopanorpa inaequalis – type locality for species
 * †Permopanorpa schucherti – type locality for species
 * †Permophorus
 * †Permophorus oblongus
 * †Permophorus subcostata – or unidentified comparable form
 * †Permophorus subcostatus
 * †Permopsocus – type locality for genus
 * †Permopsocus latipennis – type locality for species
 * †Permopsocus ovatus – type locality for species
 * †Permopsylla – type locality for genus
 * †Permopsylla americana – type locality for species
 * †Permopsylla anomala – type locality for species
 * †Permopsylla grandis – type locality for species
 * †Permopsylla minuta – type locality for species
 * †Permopsylla permiana – type locality for species
 * †Permoraphidia – type locality for genus
 * †Permoraphidia americana – type locality for species
 * †Permoraphidia grandis – type locality for species
 * †Pernopecten
 * †Pernopecten aviculatus
 * Petalodus ohioensis fossil.jpg †[[Petalodus]]
 * †Petalodus allegheniensis
 * †Petalodus arcuatus
 * †Petalodus jewetti – type locality for species
 * †Petalodus ohioensis
 * †Petrelcana – type locality for genus
 * †Petrelcana elongata – type locality for species
 * †Petrocrania
 * †Petrocrania modesta
 * †Petrodus
 * †Petrodus patelliformis
 * Petrolacosaurus BW.jpg †[[Petrolacosaurus]] – type locality for genus
 * †Petrolacosaurus kansensis – type locality for species
 * †Phanerotrema
 * †Pharkidonotus
 * †Pharkidonotus percarinatus
 * †Phasmatocycas
 * †Phasmatocycas kansana
 * †Phenopterum – type locality for genus
 * †Phenopterum elongatum – type locality for species
 * †Phestia
 * †Phestia arata
 * †Phillipsia – tentative report
 * †Phricodothyris
 * †Phyloblatta – type locality for genus
 * †Phyloblatta brevicubitalis – type locality for species
 * †Phyloblatta compacta – type locality for species
 * †Phyloblatta curtula – type locality for species
 * †Phyloblatta curvata – type locality for species
 * †Phyloblatta fulvana – type locality for species
 * †Phyloblatta fulvella – type locality for species
 * †Phyloblatta fusca – type locality for species
 * †Phyloblatta kansasia – type locality for species
 * †Phyloblatta lawrenceana – type locality for species
 * †Phyloblatta lugubris – type locality for species
 * †Phyloblatta magna – type locality for species
 * †Phyloblatta occidentalis – type locality for species
 * †Phyloblatta savagei – type locality for species
 * †Phyloblatta separanda
 * †Phymatopleura
 * †Phymatopleura brazoensis – or unidentified related form
 * †Physonemus
 * †Physonemus asper
 * †Physonemus mirabilis
 * †Pilosisporites
 * †Pilosisporites aculealatus
 * †Pinnatopora
 * †Pityosporites
 * †Plagioglypta
 * †Platyceras
 * †Platychorista – type locality for genus
 * †Platychorista venosa – type locality for species
 * †Platysaccus
 * †Platysaccus saarensis
 * Platysomus gibbosus.jpg †[[Platysomus]]
 * †Platysomus swaffordae – type locality for species
 * †Plaxocrinus
 * †Plaxocrinus gloukosensis – or unidentified comparable form
 * †Pleisiogramma – type locality for genus
 * †Pleisiogramma medialis – type locality for species
 * Pleurotomaria
 * †Plummericrinus
 * †Poacordaites
 * †Poacordaites linearis
 * †Polaricyclus
 * †Polaricyclus ballardensis – type locality for species
 * †Polidevcia
 * †Polidevcia arata
 * †Polypora
 * †Polypora aestacella
 * †Polypora elliptica
 * †Polypora endoi
 * †Polypora fujimotoi
 * †Polypora gigantea
 * †Polypora moorei
 * †Polypora submarginata
 * †Polytaxis
 * †Potonieisporites
 * †Potonieisporites elegans
 * †Potonieisporites novicus
 * †Potonieisporites simplex
 * †Prismopora
 * †Prismopora triangulata
 * †Probnis – type locality for genus
 * †Probnis speciosa – type locality for species
 * †Progoneura – type locality for genus
 * †Progoneura minuta – type locality for species
 * †Progonopsocus – type locality for genus
 * †Progonopsocus permianus – type locality for species
 * †Promartynovia – type locality for genus
 * †Promartynovia venicosta – type locality for species
 * †Promytilus
 * †Promytilus vetulus
 * †Properrinites – type locality for genus
 * †Properrinites plummeri – type locality for species
 * †Prosaites – type locality for genus
 * †Prosaites compactus – type locality for species
 * †Prosaites secundus – type locality for species
 * †Protelytron – type locality for genus
 * †Protelytron angustum – type locality for species
 * †Protelytron dunbari – type locality for species
 * †Protelytron furcatum – type locality for species
 * †Protelytron permianum – type locality for species
 * †Protelytropsis – type locality for genus
 * †Protelytropsis grandis – type locality for species
 * †Protembia – type locality for genus
 * †Protembia permiana – type locality for species
 * †Protereisma – type locality for genus
 * †Protereisma arcuatum – type locality for species
 * †Protereisma elongatum – type locality for species
 * †Protereisma insigne – type locality for species
 * †Protereisma latum – type locality for species
 * †Protereisma permianum – type locality for species
 * †Protereisma sellardsi – type locality for species
 * †Protochorista – type locality for genus
 * †Protochorista tetraclada – type locality for species
 * †Protohaploxipinus
 * †Protohymen – type locality for genus
 * †Protohymen elongatus – type locality for species
 * †Protohymen permianus – type locality for species
 * †Protohymen readi – type locality for species
 * †Protohymen tenuis – type locality for species
 * †Protopanorpa – type locality for genus
 * †Protopanorpa permiana – type locality for species
 * †Pryg – type locality for genus
 * †Pryg absurdus – type locality for species
 * †Pseudaktubites
 * †Pseudaktubites stainbrooki
 * †Pseudobigalea
 * †Pseudobythocypris
 * †Pseudobythocypris pediformis
 * †Pseudofusulina
 * †Pseudofusulina delicata – type locality for species
 * †Pseudomonotis
 * †Pseudomonotis hawni – type locality for species
 * †Pseudoparaparchites – type locality for genus
 * †Pseudoparaparchites kansensis – type locality for species
 * †Pseudorthoceras
 * †Pseudorthoceras knoxense
 * †Pseudozygopleura
 * †Psoroptera – type locality for genus
 * †Psoroptera cubitalia – type locality for species
 * †Ptychocarpus
 * †Ptychocarpus candolliana
 * †Ptychocarpus feminaeformis
 * †Ptychocarpus unitus
 * †Ptylopora
 * †Punctatisporites
 * †Punctatisporites chapelensis
 * †Punctatisporites compactus
 * †Punctatisporites flavus
 * †Punctatisporites glaber
 * †Punctatisporites grandivermiculatus
 * †Punctatisporites minutus
 * †Punctatisporites obesus
 * †Punctatosporites
 * †Punctatosporites compactus
 * †Punctatosporites glaber
 * †Punctatosporites granifer
 * †Punctatosporites minutus
 * †Punctospirifer
 * †Punctospirifer kentuckensis
 * †Pustulatisporites
 * †Pycnoblattina –

Q

 * †Quasillinites
 * †Quasillinites diversiformis

R

 * †Raistrickia
 * †Raistrickia abdita
 * †Raistrickia aculeata
 * †Raistrickia aculeolata
 * †Raistrickia crinita
 * †Raistrickia crocea
 * †Raistrickia rubida
 * †Raistrickia subcrinita
 * †Rectifenestella
 * †Rectifenestella tenax
 * †Reticulatia
 * †Reticulatia huecoensis
 * †Reticulatisporites
 * †Reticulatisporites muricatus
 * †Reticulitriletes
 * †Reticulitriletes clatriformis
 * †Reticulitriletes falsus
 * †Reticulitriletes reticulocingulum
 * †Retispira
 * †Retispira tenuilineata
 * †Retispira textiliformis
 * †Rhabdocarpus
 * †Rhabdomeson
 * †Rhipidomella
 * †Rhipidomella carbonaria
 * †Rhombopora
 * †Rhombopora lepidodendroides
 * †Rhynchopora
 * †Rhynchopora magnicosta
 * †Roundyella
 * †Roundyella simplicissima

S

 * †Samaropsis
 * †Samaropsis fluitans
 * †Sandalodus – or unidentified comparable form
 * †Sandrewia
 * †Sandrewia texana
 * †Sansabella
 * †Sansabella bolliaformis
 * †Savitrisporites
 * †Savitrisporites majus
 * †Schistoceras
 * †Schizoblattina
 * †Schizoblattina minor – type locality for species
 * †Schizoblattina schucherti – type locality for species
 * †Schizodus
 * †Schizodus ovatus – tentative report
 * †Schizodus wheeleri
 * †Schizophoria
 * †Schizopteris
 * †Schizopteris trichomanoides – or unidentified comparable form
 * †Schubertella
 * †Schubertella kingi
 * †Schutzia
 * †Schutzia anomala – or unidentified comparable form
 * †Scolecopteris
 * †Scolecopteris elegans
 * †Secarisporites
 * †Secarisporites remotus
 * †Sellardsula – type locality for genus
 * †Sellardsula cordata – type locality for species
 * †Sellardsula radialis – type locality for species
 * †Semopterum
 * †Semopterum venosum
 * †Septimyalina
 * †Septimyalina burmai
 * †Septimyalina perattenuata
 * †Septimyalina scitula
 * †Septopora
 * †Septopora spinulosa
 * †Serratodus – or unidentified comparable form
 * †Shansiella
 * †Shenzhousia
 * †Shenzhousia readi – type locality for species
 * †Shleesha
 * †Shleesha pinguis
 * †Shumardella
 * Stanhope Tree - geograph.org.uk - 2531669.jpg †[[Sigillaria]]
 * †Sigillaria brardii
 * †Sigillariostrobus
 * †Sigillariostrobus hastatus
 * †Silenites
 * †Silenites lenticularis
 * †Soleniscus
 * †Spackmanites
 * †Spackmanites ellipticus
 * †Spackmanites habibii
 * †Spermopteris
 * †Spermopteris coriacea
 * Sphenophyllum miravallis cropped.jpg †[[Sphenophyllum]]
 * †Sphenophyllum oblongifolium
 * †Sphenophyllum obovatum
 * †Sphenophyllum stoukenbergi – or unidentified comparable form
 * †Sphenophyllum thonii – or unidentified comparable form
 * †Sphenopteris
 * †Sphenopteris germanica – or unidentified comparable form
 * †Sphenopteris obtusiloba
 * †Sphenopteris suessi
 * †Spiloblattina
 * †Spiloblattina lawrenceana – type locality for species
 * †Spiloblattina laxa – type locality for species
 * †Spiloblattina variegata
 * Spinoaequalis schultzei reconstruction.jpg †[[Spinoaequalis]] – type locality for genus
 * †Spinoaequalis schultzei – type locality for species
 * †Spinofenestella
 * †Spinofenestella spinulosa
 * †Spinosporites
 * †Spinosporites exiguus
 * †Spirifer
 * †Spirifer matheri
 * †Spirifer rockymontanus – tentative report
 * Spirorbis
 * †Stegocoelia
 * †Stegocoelia quadricarinata
 * †Stellarocrinus
 * †Stemmatodus
 * †Stenopoceras
 * †Stenopoceras cooperi – type locality for species
 * †Stenzonotriletes
 * †Stereopterum
 * †Stereopterum breve – type locality for species
 * †Stereopterum maculosum – type locality for species
 * †Stereopterum rotundum
 * †Stereostylus
 * †Stereostylus annae – type locality for species
 * †Stereostylus milichus – type locality for species
 * †Stereostylus perversus – type locality for species
 * †Stereostylus phainus – type locality for species
 * †Stiallia
 * †Stiallia pilosa
 * †Stiaria
 * †Stiaria intermedia
 * †Streblochondria – tentative report
 * †Streblochondria tenuilineata
 * †Streptognathodus
 * †Streptognathodus acuminatus – type locality for species
 * †Streptognathodus elongatus – type locality for species
 * †Streptognathodus farmeri – type locality for species
 * †Streptognathodus flangulatus – type locality for species
 * †Streptognathodus pawhuskaensis
 * †Streptognathodus simplex – type locality for species
 * †Streptognathodus wabaunsensis – type locality for species
 * †Streptognathodus walteri – type locality for species
 * †Streptognathodus zethus
 * †Streptorhynchus
 * †Streptorhynchus affine
 * †Striatites
 * †Striatites richteri
 * †Striatoabietites
 * †Striatopodocarpites
 * †Striatosaccites – type locality for genus
 * †Striatosaccites tractiferinus
 * †Striomonosaccites
 * †Strophostylus – type locality for genus
 * †Strophostylus girtyi – type locality for species
 * †Subarrectocrinus
 * †Subarrectocrinus perexcavatus
 * †Sublobalocrinus
 * †Sublobalocrinus kasseri
 * †Subprioniodus
 * †Sulcella
 * †Sulcella sulcata
 * †Synarmocrinus
 * †Synarmocrinus iatani
 * †Syringoclemis
 * †Syringoclemis wrefordensis – type locality for species
 * Syringoporid.jpg †[[Syringopora]]
 * †Sysciophlebia
 * †Sysciophlebia arcuata – type locality for species

T

 * †Tabulipora
 * †Tabulipora bullata – or unidentified comparable form
 * †Tabulipora carbonaria
 * †Tabulipora hispida – or unidentified comparable form
 * †Taeniaesporites
 * †Taeniopteris
 * †Taeniopteris angelica
 * †Taeniopteris coriacea
 * †Taeniopteris multinervis
 * †Tapopterum
 * †Tapopterum celsum
 * †Teguliferina
 * †Teguliferina armata
 * †Tenuacaptor – type locality for genus
 * †Tenuacaptor reiszi – type locality for species
 * †Terpnocrinus
 * †Tetrataxis
 * †Therates – type locality for genus
 * †Therates planus – type locality for species
 * †Thymospora
 * †Thymospora obscura
 * †Thymospora pseudothiessenii
 * †Tococladus – type locality for genus
 * †Tococladus rallus – type locality for species
 * †Tonganoxichnus
 * †Tonganoxichnus buildexensis
 * †Tonganoxichnus ottawensis
 * †Torispora
 * †Torispora securis
 * †Trachopteryx – type locality for genus
 * †Trachopteryx martynovi – type locality for species
 * †Trachydomia
 * †Trachydomia wheeleri – tentative report
 * †Trecospira
 * †Trepospira
 * †Trepospira discoidalis – type locality for species
 * Treptichnus pedum.png †[[Treptichnus]]
 * †Treptichnus bifurcus
 * †Treptichnus pollardi
 * †Tribolbina – type locality for genus
 * †Tribolbina permiana – type locality for species
 * †Trigonocarpus
 * †Triletes
 * †Triquitrites
 * †Triquitrites additus
 * †Triquitrites bransonii
 * †Triquitrites crassus
 * †Triquitrites exiguus
 * †Triquitrites minutus
 * †Triquitrites sculptilis
 * †Triquitrites spinosus
 * †Triquitrites subspinosus
 * †Triticites
 * †Triticites brownvillensis – type locality for species
 * †Triticites confertus
 * †Triticites eoextenta
 * †Triticites pointensis
 * Trypetesa
 * †Trypetesa caveata
 * †Trypetesa lampas – type locality for species
 * †Tupus – type locality for genus
 * †Tupus permianus – type locality for species

U

 * †Uddenoceras
 * †Ullmannia
 * †Ulocrinus
 * †Ulocrinus fistulosus – type locality for species
 * †Uncinulina
 * †Uncinulina lunata – type locality for species
 * †Undichna
 * †Undichna britannica
 * †Undichna simplicitas
 * †Urba – type locality for genus
 * †Urba punctata – type locality for species

V

 * †Verrucosisporites
 * †Verrucosisporites donarii
 * †Verrucosisporites microtuberosus
 * †Verrucosisporites verrocosus
 * †Verrusosisporites
 * †Verrusosisporites microruberosus
 * †Vesicaspora
 * †Vesicaspora schaubergeri
 * †Vesicaspora wilsonii
 * †Vestigisporites
 * †Vestispora
 * †Vestispora fenestrata
 * †Vestispora foveata
 * †Vidrioceras
 * †Vidrioceras conlini
 * †Volsellina
 * †Volsellina subelliptica
 * †Voltzia
 * †Vosellina
 * †Vosellina subelliptica

W

 * Walchia piniformis.jpg †[[Walchia]]
 * †Walchia filiciformis – or unidentified comparable form
 * †Walchia piniformis
 * †Walchia schneideri
 * †Warthia
 * †Warthia kingi – type locality for species
 * †Wellerella
 * †Wellerella cooperi
 * †Wellerella delicatula – or unidentified comparable form
 * †Wellerella osagensis
 * †Wellerella tetrahedra
 * †Wellerella truncata
 * †Wilkingia
 * †Wilkingia terminale
 * †Williamsella
 * †Williamsella striata – type locality for species
 * †Williamsella typicalis
 * †Wilsonites
 * †Wilsonites circularis
 * †Wilsonites delicatus
 * †Wilsonites vesicatus
 * †Worthenia

X

 * †Xyrospondylus
 * †Xyrospondylus ecordi – type locality for species

Y

 * Yoldia
 * †Yoldia subscitula

Z

 * †Zygopleura