List of the Paleozoic life of Illinois

• †Acantherpestes • †Acantherpestes inequalis – type locality for species • †Acantherpestes major – type locality for species • †Acanthoparypha • †Acanthoparypha subcircularis • †Acanthopecten • †Acanthopecten carboniferus • †Acanthotriletes • †Acanthotriletes aculeolatus • †Acanthotriletes dimorphus • †Achatella • †Achatella katharina • †Acrocrinus • †Acrocrinus constrictus • †Actinoceras • †Actinopteria • †Actinopteria boydi • †Adeloblatta • †Adeloblatta columbiana – type locality for species • †Adeloblatta sellardsi • †Adeloneura – type locality for genus • †Adeloneura thompsoni – type locality for species • †Adiaphtharsia – type locality for genus • †Adiaphtharsia ferrea – type locality for species • †Adiphlebia – type locality for genus • †Adiphlebia lacoana – type locality for species • †Adolarryia – type locality for genus • †Adolarryia bairdi – type locality for species • †Aenigmatodes – type locality for genus • †Aenigmatodes danielsi – type locality for species • †Aetophlebia – type locality for genus • †Aetophlebia singularis – type locality for species • †Agogoblattina • †Agogoblattina occidua – type locality for species • †Ahrenisporites • †Ahrenisporites guerickei • †Ahrensisporites • †Ahrensisporites guerickei • †Alanympha – type locality for genus • †Alanympha richardsoni – type locality for species • †Alatisporites • †Alatisporites hexalatus • †Alatisporites punctatus • †Alatisporites trialatus • †Alethopteris'' • †Alethopteris decurrens • †Alethopteris lonchitica • †Alethopteris owenii • †Alethopteris serlii • †Allagecrinus • †Allagecrinus mccraneyensis – type locality for species • †Alloiopteris • †Alloiopteris gracillima • †Alloiopteris quercifolia – or unidentified comparable form • †Alloiopteris sternbergi • †Allosocrinus • †Allosocrinus bronaughi • †Amarixys • †Amarixys gracilis – type locality for species • †Amarixys stellaris – type locality for species • †Amarixys sulcata – type locality for species • †Amaurotoma • †Amaurotoma leavenworthana • †Ambocoelia • †Ambocoelia louisianaensis • †Ambocoelia minuta • †Ambonychia – tentative report • †Ametretus – type locality for genus • †Ametretus laevis – type locality for species • †Ameura • †Amousus – type locality for genus • †Amousus mazonus – type locality for species • †Amphibamus'' – type locality for genus • †Amphibamus grandiceps – type locality for species • †Amphicoelia • †Amphilichas • †Amphilichas subdisjunctus • †Amphiscapha • †Amphiscapha subrugosa • †Amplexizaphrentis • †Amplexizaphrentis spinulosus • †Amynilyspes – type locality for genus • †Amynilyspes wortheni – type locality for species • †Anaphragma • †Anaphragma mirabile • †Anapiculatisporites • †Anapiculatisporites grundensis • †Anapiculatisporites spinosus • †Anastrophia • †Anegertus – type locality for genus • †Anegertus cubitalis – type locality for species • †Anematina • †Anematina proutana • †Anepitedius – type locality for genus • †Anepitedius giraffa – type locality for species • †Annularia'' • †Annularia asteris – or unidentified comparable form • †Annularia cuspidata • †Annularia stellata • †Annularia vernensis – or unidentified comparable form • †Anobasicrinus • †Anobasicrinus brevis – type locality for species • †Anomphalus – type locality for genus • †Anomphalus rotulus – type locality for species • †Anthracoceras • †Anthracoceras wanlessi – type locality for species • †Anthracophausia • †Anthracophausia ingelsorum • †Anthracoscorpio – tentative report • †Anthracospirifer • †Anthracospirifer leidyi • †Anthracothremma – type locality for genus • †Anthracothremma robusta – type locality for species • †Anthrakoris – type locality for genus • †Anthrakoris aetherius – type locality for species • †Antiquatonia • †Antiquatonia portlockianus – or unidentified comparable form • †Antirhynchonella • †Antirhynchonella ventricosa – or unidentified comparable form • †Aphantomartus • †Aphantomartus pustulatus – type locality for species • †Apiculatasporites • †Apiculatasporites latigranifer • †Apiculatasporites setulosus • †Apiculatasporites spinososaetosus • †Apiculatasporites variocorneus • †Apiculatasporites variusetosus • †Apiculatisporites • †Apiculatisporites abditus • †Apiculatisporites frequentisporites • †Apiculatisporites lappites • †Apiculatisporites setulosus • †Apithanus – type locality for genus • †Apithanus jocularis – type locality for species • †Apographiocrinus • †Apographiocrinus typicalis • †Archaeocalamites • †Archaeocalamites radiatus • †Archaeocalyptocrinus • †Archaeocalyptocrinus obconicus • †Archaeocidaris – tentative report • †Archaeologus – type locality for genus • †Archaeologus falcatus – type locality for species • †Archaeopteris • †Archaeopteris stricta • †Archimedes'' • †Archimedes communis • †Archimedes compactus • †Archimedes invaginatus • †Archimedes lativolvis • †Archimedes macfarlani • †Archimedes swallovanus • †Archimedes terebriformis • †Archimylacris • †Archimylacris paucinervis – type locality for species • †Archisymplectes – type locality for genus • †Archisymplectes rhothon – type locality for species • †Architarbus – type locality for genus • †Architarbus minor – type locality for species • †Architarbus rotundatus – type locality for species • †Archiulus – tentative report • †Archiulus glomeratus – type locality for species • †Archoblattina – type locality for genus • †Archoblattina beecheri – type locality for species • †Archoblattina scudderi – type locality for species • †Arctinurus • †Arctinurus boltoni • †Arctinurus chicagoensis • †Argentiproductus • †Argentiproductus auriculatus • . Charles Emerson Beecher (1889). †Arthrolycosa'' – type locality for genus • †Arthrolycosa antiqua – type locality for species • †Arthrolycosa danielsi – type locality for species • †Arthropitys • †Arthropitys communis • †Artisia • †Artisia transversa • †Asemoblatta • †Asemoblatta danielsi – type locality for species • †Asemoblatta mazona – type locality for species • †Asinomphalus • †Asinomphalus antiqua • †Asolanus • †Asolanus camptotaenia • †Astartella • †Astartella compacta • †Astartella concentrica • †Asterophyllites • †Asterophyllites equisetiformis – or unidentified comparable form • †Asterophyllites longifolius • †Asterophyllites multifolia • †Asterotheca • †Asterotheca miltoni – or unidentified comparable form • †Astraeospongium • †Asyncritus – type locality for genus • †Asyncritus reticulatus – type locality for species • †Athyris • †Athyris vittata • †Atrypa'' • †Atrypa putilla • †Atrypa reticularis – report made of unidentified related form or using admittedly obsolete nomenclature • †Aulacotheca • †Aulertupus – type locality for genus • †Aulertupus tembrocki – type locality for species • †Aviculopecten • †Aviculopecten fasciculatus • † Avonia • †Avonia pyidata • †Axiodeaneia • †Axiodeaneia glenparkensis • †Axiologus – type locality for genus • †Axiologus thoracicus – type locality for species ==B==

• †Balteosporites • †Balteosporites minutus • †Bandringa – type locality for genus • †Bandringa herdinae – type locality for species • †Bandringa rayi – type locality for species • †Bassleroceras • †Bassleroceras lasallense • †Baylea • †Baylea minuta – type locality for species • †Baylea sinuatus – type locality for species • †Baylea subconstricta – type locality for species • †Beecheria • †Beecheria illinoisense • †Beecheria paraplicata • †Belemnospongia • †Belemnospongia parmula • †Bellerophon'' • †Bellerophon chesterensis – type locality for species • †Bellerophon incomptus – type locality for species • †Bellerophon spergensis • †Bellerophon stevensianus • †Bellerophon tenuilineata – type locality for species • †Belinurus • †Belinurus lacoei – type locality for species • †Bembexia • †Bembexia gradilispira – type locality for species • †Beyrichiella • †Beyrichiella confluens • †Bicarina • †Bicarina petilitornata • †Bighornia • †Bighornia patella – or unidentified comparable form • †Bizarrea – type locality for genus • †Bizarrea obscura – type locality for species • †Blattoidea • †Blattoidea anceps – type locality for species • †Blattoidea carri – type locality for species • †Blattoidea melanderi • †Blattoidea schuchertiana – type locality for species • †Blattoidea sellardsiana – type locality for species • †Brabeocrinus – type locality for genus • †Brabeocrinus christinae – type locality for species • †Brachycycloceras • †Brachycycloceras normale • †Brachydectes'' • †Brachydectes newberryi • †Brachythyris • †Brachythyris hortonensis • †Brevilamnulella – tentative report • †Brevilamnulella thebesensis • †Bucania • †Bucania batchtownensis – type locality for species • †Bulimorpha • †Bulimorpha minor • †Bulimorpha whitfieldi – type locality for species • †Bumastoides • †Bumastoides billingsi • †Bumastus'' • †Bumastus armata • †Bumastus armatus – or unidentified comparable form • †Bumastus chicagoensis • †Bumastus cuniculus – or unidentified comparable form • †Bumastus graftonensis • †Bumastus insignis • †Bumastus springfieldensis • †Bumastus transversalis • †Buthiscorpius • †Buthiscorpius lemayi – type locality for species ==C==

• †Cacurgus – type locality for genus • †Cacurgus spilopterus – type locality for species • †Cadiospora • †Cadiospora fithiana • †Cadiospora magna • †Calamites'' • †Calamites cistiiformis – or unidentified comparable form • †Calamites rectangularis • †Calamites suckowii • †Calamocarpon • †Calamocarpon insignis • †Calamodendron • †Calamodendron americanum • †Calamospora • †Calamospora breviradiata • †Calamospora flava • †Calamospora flexilis • †Calamospora hartungiana • †Calamospora liquida • †Calamospora minuta • †Calamospora mutabilis • †Calamospora pedata • †Calamospora straminea • †Calamostachys • †Calamostachys americana • †Calamostachys andanensis • †Calamostachys inversibractis – type locality for species • †Calceocrinus • †Calliasterella • †Calliasterella americana • †Calliocrinus • †Calliocrinus cornatus • †Calliocrinus cornutus • †Calliocrinus pentangularis • †Callipteridium'' • †Calvinia • †Calvinia edgewoodensis • †Calymene • †Calymene breviceps • †Calymene celebra • †Calyptaulax • †Calyptaulax callicephala • †Camarophorella • †Camarophorella buckleyi – or unidentified comparable form • †Camarotoechia • †Camerella • †Camptotriletes • †Camptotriletes bucculentus • †Camptotriletes triangularis • †Cancrinella • †Cancrinella boonensis • †Cannophyllites • †Cannophyllites abbreviata • †Cannophyllites dawsoni • †Cannophyllites fasciculata • †Cannophyllites marginata • †Cannophyllites rectinervis • †Cannophyllites southwelli • †Carbonocoryphe • †Carbonocoryphe planucauda • †Carbonympha – type locality for genus • †Carbonympha herdinai – type locality for species • †Cardiocarpon • †Cardiopteridium • †Cardiothyris • †Cardiothyris pristina • †Carpocrinus • †Caryocrinites • †Caryocrinites ornatus – or unidentified comparable form • †Caseodus'' • †Caseodus basalis – type locality for species • †Catadyesthus • †Catadyesthus priscus • †Caulopteris • †Cephalerpeton – type locality for genus • †Cephalerpeton ventriarmatum – type locality for species • †Ceratiocaris • †Ceratiocaris markhami • †Ceratocephala • †Ceratocephala goniata • †Ceraurinella • †Ceraurinella tenuisculptus • †Ceraurinus • †Ceraurinus platycanthus • †Cerauromerus • †Cerauromerus hydei • †Ceraurus'' • †Ceraurus globulobatus • †Ceraurus pleurexanthemus • †Cervifurca • †Cervifurca nasuta • †Chaenomya • †Chaetetes • †Cheirurus • †Cheirurus niagarensis – or unidentified comparable form • †Cheirurus patens • †Cheliphlebia – type locality for genus • †Cheliphlebia carbonaria – type locality for species • †Cheliphlebia mazona – type locality for species • †Chenilleophycus • †Chenilleophycus godfreyensis • †Chicagocrinus • †Chicagocrinus ornatus • †Chirodus • †Chirodus orbicularis • †Chlidonocrinus • †Chlidonocrinus erectus – type locality for species • †Chlidophorus • †Chonetes • †Chonetes ornatus • †Chonetinella • †Chrestotella • †Chrestotella danae – type locality for species • †Chrestotes – type locality for genus • †Chrestotes lapidea – type locality for species • †Cirratriradites • †Cirratriradites annulatus • †Cirratriradites annuliformis • †Cirratriradites tenuis • †Clathrocrinus – type locality for genus • †Clathrocrinus clathratus – type locality for species • †Clathrocrinus clinatus – type locality for species • †Clathrodictyon • †Clathrodictyon vesiculosum • †Clathrospira • †Clathrospira subconica • †Cleiothyridina'' • †Cleiothyridina atrypoides • †Cleiothyridina sublamellosa • †Clepsydrops – type locality for genus • †Clepsydrops collettii – type locality for species • †Clepsydrops vinslovii – type locality for species • †Cliftonia • †Cliftonia tubulistriata • †Clonocrinus • †Clonocrinus chicagoensis • †Clonocrinus niagarensis • †Coelacanthus'' • †Coelacanthus exiguus • †Coelocystis • †Coelocystis subglobosus • †Columinisporites • †Columinisporites ovalis • †Complexisporites • †Complexisporites chalonerii • †Composita • †Composita argentea • †Composita matutina • †Composita subtilita • †Composita trinuclea • †Compsaster • †Compsaster formosus • †Condrathyris • †Condrathyris perplexa • †Conocardium • †Conocardium chesterensis – type locality for species • †Contocrinus • †Contocrinus coupi – type locality for species • †Converrucosisporites • †Converrucosisporites subverrucosus • †Convolutispora • †Convolutispora florida • †Convolutispora fromensis • †Cooperoceras • †Cordaianthus • †Cordaicarpus • †Cordaicladus • †Cordaites'' • †Cordaites communis • †Cordaites principalis • †Cornulites • †Corynepteris • †Corynepteris erosa – or unidentified comparable form • †Crania • †Crania dodgei • †Craniops • †Crassiproetus • †Crassiproetus occidens • †Crassispora • †Crassispora kosankei • †Crassispora plicata • †Cricotus'' – type locality for genus • †Cricotus heteroclitus – type locality for species • †Cristatisporites • †Cristatisporites alpernii • †Cristatisporites indignabundus • †Crossotheca • †Crotalocrinites • †Crotalocrinites cora • †Crotalocrinites vanhornei • †Crurithyris • †Crurithyris levicula – or unidentified comparable form • †Crurithyris planoconvexa • †Cryptothyrella • †Cryptothyrella ovoides • †Ctenacanthus'' • †Ctenacanthus buttersi – type locality for species • †Ctenodonta • †Ctenodonta concinna • †Curculioides • †Curculioides gigas – type locality for species • †Curculioides mcluckiei – type locality for species • †Curculioides scaber – type locality for species • †Curriella – tentative report • †Cyathocrinites • †Cyclites • †Cyclites globosa – type locality for species • †Cyclogranisporites • †Cyclogranisporites aureus • †Cyclogranisporites breviradiata • †Cyclogranisporites breviradiatus • †Cyclogranisporites leopoldi • †Cyclogranisporites micaceus • †Cyclogranisporites microgranus • †Cyclogranisporites minutus • †Cyclogranisporites obliquus • †Cyclogranisporites orbicularis • †Cyclogranisporites staplini • †Cyclonema • †Cyclonema daytonensis • †Cyclonema intermedium • †Cyclus • †Cyclus americanus – type locality for species • †Cymatospira • †Cymatospira welleri • †Cyperites • †Cyphaspis • †Cyphaspis globosus • †Cyphaspis intermedia • †Cyphocrinus • †Cyphocrinus chicagoensis • †Cypricardella • †Cypricardella bellistriata • †Cyrtia • †Cyrtoceras'' • Cytherella • †Cytherella glandella • †Cytherellina • †Cytherodon – tentative report • †Cytherodon appresus • †Cytocrinus ==D==

• †Dabasacanthus – type locality for genus • †Dabasacanthus inskasi – type locality for species • †Dactylotheca • †Dactylotheca aspera • †Dalejina • †Dalmanella • †Dalmanella edgewoodensis • †Dalmanites'' • †Dalmanites danai • †Dalmanites illinoisensis • †Dalmanites obex • †Dalmanites platycaudatus • †Danielsiella – type locality for genus • †Danielsiella priscula – type locality for species • †Dasciocrinus • †Dasciocrinus spinifer • †Dasyleptus • †Dawsonoceras • †Decoroproetus • †Deiphon • †Deiphon americanus • †Delicaster – type locality for genus • †Delicaster enigmaticus • †Delthyris • †Deltoidospora • †Deltoidospora levis • †Deltoidospora priddyi • †Deltoidospora sphaerotriangula • †Denayella • †Denayella rotalia – or unidentified comparable form • †Densosporites • †Densosporites annulatus • †Densosporites lobatus – or unidentified comparable form • †Densosporites ruhus • †Densosporites sinuosus • †Densosporites sphaerotriangularis • †Densosporites triangularis • †Derbyia • †Derbyia crassa • †Derbyoides • †Derbyoides nebrascensis • †Desmograptus • †Desmograptus micronematodes • †Desmopteris • †Devonatrypa • †Devononema – type locality for genus • †Devononema typicum – type locality for species • †Diagonodictya – type locality for genus • †Diagonodictya crusta – type locality for species • †Diamphidiocystis • †Diamphidiocystis drepanon • †Diaphorodendron • †Diaphorodendron rimosum • †Diaphragmus • †Diaphragmus fasciculatus • †Dicalamophyllum • †Dicalamophyllum americanum • †Dichocrinus • †Dichocrinus nola – type locality for species • †Dicksonites • †Dicoelosia • †Dicranopeltis • †Dicranopeltis decipiens • †Dictyoclostus • †Dictyoclostus inflatus • †Dictyomonolites • †Dictyomonolites swadei • †Dictyonema • †Dictyonema crassibasale • †Dictyonema retiforme • †Dictyonema tenellum • †Dictyophlois • †Dictyophlois reticulata var. illinoisensis • †Dictyotomaria • †Dictyotomaria depressus – type locality for species • †Dictyotomaria wortheni – type locality for species • †Dictyotomaria yochelsoni • †Dictyotriletes • †Dictyotriletes bireticulatus • †Dictyotriletes danvillensis • †Dictyotriletes densoreticulatus • †Dictyotriletes distortus • †Dictyotriletes falsus – or unidentified comparable form • †Dictyotriletes reticulocingulum – or unidentified comparable form • †Dictyoxylon – or unidentified comparable form • †Dieconeura – type locality for genus • †Dieconeura arcuata – type locality for species • †Dieconeura mazona – type locality for species • †Dielasmella • †Dielasmella compressa • †Diexodus – type locality for genus • †Diexodus debilis – type locality for species • †Dimerocrinites • †Dimerocrinites occidentalis • †Dimerocrinites pentangularis • †Dinobolus • †Diplocaulus'' – type locality for genus • †Diplocaulus salamandroides – type locality for species • †Diplothmema • †Diplothmema cheathami • †Discotarbus – type locality for genus • †Discotarbus deplanatus – type locality for species • †Distortitisporites • †Distortitisporites illinoiensis • †Ditomopyge • †Ditomopyge scitula • †Dolichoharpes • †Dolichoharpes uniserialis • †Domatoceras • †Domatoceras mattoonense – type locality for species • †Domatoceras wortheni – type locality for species • †Donaldina • †Donaldina americana • †Donaldina fountainensis – type locality for species • †Donaldina marigoldensis • †Donaldina pygmaea – type locality for species • †Dorycrinus • †Dorycrinus mississippiensis • †Dragonympha – type locality for genus • †Dragonympha srokai – type locality for species • †Dudleyaspis • †Dudleyaspis vanhornei ==E==

• †Echinaria • †Echinoconchus • †Echinoconchus alternatus • †Edestus'' • †Edestus crenulatus – type locality for species • †Edestus serratus – type locality for species • †Edmondia • †Edmondia ovata • †Eileticus – type locality for genus • †Eileticus aequalis – type locality for species • †Eileticus anthracinus – type locality for species • †Elasmonema • †Elasmonema corrugata • †Elaterites • †Elaterites triferens • †Elibatocrinus • †Elibatocrinus elegans – type locality for species • †Elonichthys'' • †Elonichthys disjunctus – type locality for species • †Elonichthys peltigerus • †Elonichthys perpennatus • †Encrinurus • †Encrinurus egani • †Endelocrinus • †Endelocrinus tumidus • †Endoiasmus – type locality for genus • †Endoiasmus reticulatus – type locality for species • †Endosporites • †Endosporites globiformis • †Endosporites plicatus • †Enoploura • †Enteletes • †Enteletes hemiplicata • †Eoasinites • †Eobronteus • †Eobronteus slocomi • †Eoctonus – type locality for genus • †Eoctonus miniatus – type locality for species • †Eodictyonella • †Eohalysiocrinus – tentative report • †Eolissochonetes • †Eomartiniopsis • †Eomartiniopsis kinderhookensis • †Eophacops • †Eophacops handwerki • †Eoplectodonta • †Eoscorpius – type locality for genus • †Eoscorpius carbonarius – type locality for species • †Eospirifer • †Eospirifer radiatus • †Eospirigerina • †Eospirigerina putilla • †Eotrochus • †Eotrochus marigoldensis • †Ephippioceras • †Ephippioceras moinellae – type locality for species • †Epideigma – type locality for genus • †Epideigma elegans – type locality for species • †Eremopteris • †Eremopteris grandis • †Eremopteris inaequilateralis • †Erisocrinus • †Erisocrinus typus • †Erratencrinurus • †Erratencrinurus vigilans • †Escharopora • †Escharopora patens • †Eubleptus – type locality for genus • †Eubleptus danielsi – type locality for species • †Eubleptus maculosus – type locality for species • †Eubrodia – type locality for genus • †Eubrodia dabasinskasi – type locality for species • †Eucaenus – type locality for genus • †Eucaenus ovalis – type locality for species • †Eucaenus pusillus – type locality for species • †Eucaenus rotundatus – type locality for species • †Eucalyptocrinites'' • †Eucalyptocrinites asper • †Eucalyptocrinites crassus • †Eucalyptocrinites depressus • †Eucalyptocrinites egani • †Eucalyptocrinites inornatus • †Eucalyptocrinites ornatus • †Eucalyptocrinites rotundus • †Euchondria • †Euchondria levicula • †Euconospira • †Euconospira sturgeoni • †Euconospira waterlooensis – type locality for species • †Eudoxina • †Eudoxina subrotunda • †Euhydrodiskos – type locality for genus • †Euhydrodiskos diktyotos – type locality for species • †Eumetria • †Eumetria vera • †Eumicrerpeton – type locality for genus • †Eumicrerpeton parvum – type locality for species • †Eunema • †Eunema centralis – type locality for species • †Eunema fasciata – type locality for species • †Euomphalus'' • †Euomphalus planodorsatus • †Euomphalus similis • †Euonychocrinus • †Euonychocrinus simplex – type locality for species • †Euphemerites • †Euphemerites affinis – type locality for species • †Euphemerites gigas – type locality for species • †Euphemerites simplex – type locality for species • †Euphemites • †Euphemites callosus – type locality for species • †Euphemites carbonarius • †Euphemites lentiformis – type locality for species • †Euphemites randolphensis – type locality for species • †Euphoberia'' – type locality for genus • †Euphoberia anguilla – type locality for species • †Euphoberia armigera – type locality for species • †Euphoberia carri – type locality for species • †Euphoberia cuspidata – type locality for species • †Euphoberia flabellata – type locality for species • †Euphoberia granosa • †Euphoberia horrida – type locality for species • †Euphoberia hystricosa – type locality for species • †Euphoberia simplex – type locality for species • †Euphoberia spinulosa – type locality for species • †Euphoberia tracta – type locality for species • †Euryzone • †Euryzone latitornata • †Eusphenopteris • †Eusphenopteris morrowensis • †Exallaspis • †Exallaspis illinoisensis • †Exocrinus • †Exocrinus wanni • †Exoriocrinus – type locality for genus • †Exoriocrinus lasallensis ==F==

• †Fasciculiconcha • †Fasciculiconcha knighti • †Favosites'' • †Fenestella • †Ferganella • †Fistulipora • †Fistulipora excellens • †Fistulipora incrustans • †Fistulipora perdensa • †Fletcheria • †Florinites • †Florinites antiquus • †Florinites grandis • †Florinites mediapudens • †Florinites mediaudens • †Florinites millotti • †Florinites similis • †Florinites triletus • †Florinites visendus • †Florinites volans • †Fraipontia • †Fraipontia bella – type locality for species ==G==

• †Galateacrinus • †Galateacrinus coacervatus – type locality for species • †Gazacrinus • †Gazacrinus major • †Gazacrinus minor • †Genentomum – type locality for genus • †Genentomum validum – type locality for species • †Geralinura • †Geralinura carbonaria – type locality for species • †Gerapompus • †Gerapompus blattinoides – type locality for species • †Gerapompus extensus – type locality for species • †Gerapompus schucherti – type locality for species • †Geraroides • †Geraroides maximus – type locality for species • †Gerarulus – type locality for genus • †Gerarulus radialis – type locality for species • †Gerarus – type locality for genus • †Gerarus collaris – type locality for species • †Gerarus constrictus – type locality for species • †Gerarus danielsi – type locality for species • †Gerarus mazonus – type locality for species • †Gerarus vetus – type locality for species • †Geratarbus – type locality for genus • †Geratarbus lacoei – type locality for species • †Gigantopteris • †Gigantopteris dawsoni • †Gigantopteris ovata • †Girtyella • †Girtyella indianensis • †Girtyspira • †Girtyspira canaliculata • †Girtyspira pygmaea – type locality for species • †Gissocrinus • †Glabrocingulum • †Glabrocingulum chesterensis • †Glabrocingulum grayvillense • †Glaphyrophlebia – type locality for genus • †Glaphyrophlebia pusilla – type locality for species • †Glikmanius'' • †Glikmanius occidentalis • †Globozyga • †Globozyga tenuistriata • †Glyptambon • †Glyptambon verrucosus • †Glyptopleura • †Glyptopleura costata • †Gomphocystites • †Gondolella • †Gondolella pohli • †Gonioloboceras • †Gonioloboceras parrishi – type locality for species • †Goniophora – tentative report • †Gosseletina • †Gosseletina johnsoni • †Gosseletina subglobosa • †Grabauphyllum • †Grabauphyllum johnstoni • †Graeophonus • †Graeophonus scudderi – type locality for species • †Granasporites • †Granasporites medius • †Granulatispoites • †Granulatispoites piroformis • †Granulatisporites • †Granulatisporites adnatoides • †Granulatisporites granularis • †Granulatisporites granulatus • †Granulatisporites livingstonensis • †Granulatisporites microgranifer • †Granulatisporites minutus • †Granulatisporites pallidus • †Granulatisporites pannosites • †Granulatisporites parvus – or unidentified comparable form • †Granulatisporites piroformis • †Granulatisporites verrucosus • †Greenops • †Greererpeton'' • †Greererpeton burkmorani • †Griffithidella • †Griffithidella alternata • †Griffithidella doris • †Grumosisporites • †Grumosisporites rufus – or unidentified comparable form • †Grumosisporites varioreticulatus • †Gulpenia • †Gulpenia limburgensis • †Gypidula • †Gyrophlebia – type locality for genus • †Gyrophlebia longicollis – type locality for species ==H==

• †Hadentomum – type locality for genus • †Hadentomum americanum – type locality for species • †Hadrachne – type locality for genus • †Hadrachne horribilis – type locality for species • †Haeretocrinus • †Haeretocrinus macoupinesis • †Haeretocrinus wagneri – type locality for species • †Hagnocrinus – tentative report • †Hagnocrinus dubius • †Hallicystis • †Hallicystis elongata • †Hallopora'' – tentative report • †Halogetocrinus – type locality for genus • †Halogetocrinus paucus • †Halysites • †Hamburgia • †Hamburgia typa • †Harmostocrinus – type locality for genus • †Harmostocrinus porosus – type locality for species • †Harpidella • †Harpidium • †Hebertella • †Hedeina • †Helenodora – type locality for genus • †Helenodora inopinata – type locality for species • †Helicotoma • †Helicotoma planulata • †Heliolites • †Heliomeroides • †Heliomeroides raymondi • †Hemeristia – type locality for genus • †Hemeristia occidentalis – type locality for species • †Hemiarges • †Herdina – type locality for genus • †Herdina mirificus – type locality for species • †Heslerodus • †Heslerodus divergens • †Hesperorthis • †Heteralosia • †Heteralosia beecheri • †Heterologus – type locality for genus • †Heterologus langfordorum – type locality for species • †Heterotarbus – type locality for genus • †Heterotarbus ovatus – type locality for species • †Hexacrinites • †Hexacrinites mississippiensis – type locality for species • †Holcospermum • †Holia • †Holia magnaspina • †Holocystites • †Holocystites alternatus • †Holocystites cylindricus • †Holocystites scutellatus – type locality for species • †Holocystites spangleri • †Holocystites sphaericus • †Homaloneura • †Homaloneura dabasinskasi – type locality for species • †Homocrinus – tentative report • †Homoeospira • †Homotelus • †Homotelus laeviurus • †Howellella • †Hustedia • †Hustedia marmoni • †Hybochilocrinus • †Hybochilocrinus americanus • †Hymenospora • †Hymenospora multirugosa • †Hymenospora paucirugosa • †Hyolithes'' • †Hyolithes striatus • †Hypergonia • †Hypergonia baldwinensis • †Hypergonia illinoiensis – type locality for species • †Hypergonia marvinwelleri • †Hypermegethes – type locality for genus • †Hypermegethes schucherti – type locality for species • †Hypselocrinus • †Hypselocrinus maccabei • †Hystrichopsydrax – type locality for genus • †Hystrichopsydrax sandersi – type locality for species • †Hystriculina • †Hystriculina texana ==I==

• †Ianthinopsis – tentative report • †Icthyocrinus • †Icthyocrinus subangularis • †Illaenoides • †Illaenoides triloba • †Ilyodes • †Ilyodes divisa – type locality for species • †Ilyodes elongata – type locality for species • †Indospora • †Indospora boletus • †Indospora stewarti • †Ischadites • †Ischadites koenigi • †Isoallagecrinus • †Isoallagecrinus lasallensis – type locality for species • †Isodectes'' • †Isodectes obtusus • †Isorophus – tentative report • †Isorthis • †Isotelus • †Isotelus gigas • †Isotelus maximus ==J==

• †Jimpohlia – type locality for genus • †Jimpohlia erinacea – type locality for species • †Juresania • †Juresania symmetrica ==K==

• †Kanabinocrinus – tentative report • †Kankakeea – type locality for genus • †Kankakeea grundyi – type locality for species • †Kaskia • †Kaskia chesterensis • †Kewaneesporites • †Kewaneesporites reticulatus • †Kewaneesporites reticuloides • †Kionoceras'' • †Kitakamithyris • †Kitakamithyris cooperensis • †Kloedenella – tentative report • †Knorria • †Knorria imbricata – or unidentified comparable form • †Knoxisporites • †Knoxisporites rotatus • †Knoxisporites stephanephorus • †Knoxisporites triradiatus • †Kosankeisporites • †Kosankeisporites elegans • †Kosovopeltis • †Kozlowskia • †Kozlowskia splendens • †Kozlowskiella • †Kozlowskiella inexpectata – type locality for species • †Kronoscorpio • †Kronoscorpio danielsi – type locality for species • †Kustarachne – type locality for genus • †Kustarachne tenuipes – type locality for species • †Kutorginella • †Kutorginella lasallensis ==L==

• †Lacoea • †Lacoea seriata • †Laevigatosporites • †Laevigatosporites desmoinensis • †Laevigatosporites desmoinesensis • †Laevigatosporites globosus • †Laevigatosporites medius • †Laevigatosporites minutus • †Laevigatosporites ovalis • †Laevigatosporites punctatus • †Laevigatosporites vulgaris • †Lagenospermum • †Lameereites – type locality for genus • †Lameereites curvipennis – type locality for species • †Lampterocrinus • †Lampterocrinus inflatus • †Larryia – type locality for genus • †Larryia osterbergi – type locality for species • †Latosporites • †Latosporites minutus • †Latzelia'' – type locality for genus • †Latzelia primordialis – type locality for species • †Laudonocrinus • †Laudonocrinus subsinuatus • †Leangella • †Lecanocrinus • †Lecthaylus - type locality for genus • †Lecthaylus gregarius - type locality for species • †Leiotriletes • †Leiotriletes adnatoides • †Leiotriletes atshanensis – or unidentified comparable form • †Leiotriletes gracilis • †Leiotriletes levis • †Leiotriletes notatus • †Leiotriletes parvus • †Leiotriletes pseudolevis • †Lepadocystis • †Lepetopsis • †Lepetopsis chesterensis • †Lepidocarpon • †Lepidocyclus • . Eli Heimans (1911). †Lepidodendron'' • †Lepidodendron aculeatum • †Lepidodendron oblongifolium • †Lepidodendron veltheimii – or unidentified comparable form • †Lepidodendron volkmannianum • †Lepidodendron wortheni • †Lepidophloios • †Lepidophylloides • †Lepidophyllum • †Lepidophyllum campbelleanum • †Lepidostrobophyllum • †Lepidostrobus • †Leptaena • †Leptaena aequalis • †Leptaena rhomboidalis • †Leptagonia • †Leptagonia missouriensis – or unidentified comparable form • †Leptodesma • †Leptodesma ehlersi – or unidentified comparable form • †Leptodesma laevis • †Leptoptygma • †Leptoptygma fountainensis – type locality for species • †Leptoptygma golconda • †Lesleya • †Lesleya cheimarosa – type locality for species • †Lichas • †Lichas pugnax • †Lingula'' • †Lingula carbonaria • †Lingula lamellata • †Linoproductus • †Linoproductus prattenianus • †Linopteris • †Linopteris rubella • †Liospira – tentative report • †Liroceras • †Liroceras liratum • †Lissatrypa – tentative report • †Lissochonetes • †Lissochonetes geinitzianus • †Lissomartus • †Lissomartus schucherti – type locality for species • †Listroncanthus • †Lithoneura – type locality for genus • †Lithoneura clayesi – type locality for species • †Lithoneura lameerei – type locality for species • †Lithoneura mirifica – type locality for species • †Lithoneura piecko – type locality for species • , or date mussel Lithophaga'' – tentative report • †Lithophaga subelliptica • †Litostrobus – or unidentified comparable form • †Litostrobus iowensis • †Lobeatta – type locality for genus • †Lobeatta schneideri – type locality for species • †Lophophyllidium • †Lophophyllidium proliferum • †Lophospira • †Lophospira obliqua • †Lophospira perangulata • †Lophospira serrulata • †Lophotriletes • †Lophotriletes comissuralis • †Lophotriletes commissuralis • †Lophotriletes copiosus • †Lophotriletes gibbosus • †Lophotriletes granoornatus – or unidentified comparable form • †Lophotriletes ibrahimi • †Lophotriletes microsaetosus • †Lophotriletes mosaicus • †Lophotriletes pseudaculeatus • †Lophotriletes rarispinosus • †Lycodemas – type locality for genus • †Lycodemas adolescens – type locality for species • †Lycospora • †Lycospora brevijuga • †Lycospora granulata • †Lycospora micropapillata • †Lycospora noctuina • †Lycospora orbicula • †Lycospora paulula • †Lycospora pellucida • †Lycospora punctata • †Lycospora pusilla • †Lycospora rotunda • †Lycospora subjuga • †Lycospora torquifer • †Lyellia • †Lyellia thebesensis • †Lygdozoon • †Lygdozoon arkansana • †Lyriocrinus • †Lyriocrinus melissa • showing speculative egg-coiling behavior †Lysorophus'' – type locality for genus • †Lysorophus tricarinatus – type locality for species ==M==

• †Macrocrinus • †Macrocrinus mundulus • †Macrostylocrinus • †Macrostylocrinus striatus • †Macrostylocrinus subglobosus • †Maculatasporites • †Maculatasporites punctatus • †Mammia – type locality for genus • †Mammia alutacea – type locality for species • †Mariopteris • †Mariopteris occidentalis • †Mariopteris pygmaea • †Mariopteris sillimanni • †Mariopteris speciosa • †Marsupiocrinus • †Marsupiocrinus chicagoensis • †Mazoglossus • †Mazoglossus ramsdelli – type locality for species • †Mazonia – type locality for genus • †Mazonia woodiana – type locality for species • †Mazonopterum – type locality for genus • †Mazonopterum wolfforum – type locality for species • †Mazostachys • †Mazostachys pendulata • †Mazothairos – type locality for genus • †Mazothairos enormis – type locality for species • †Mcluckiepteron – type locality for genus • †Mcluckiepteron luciae – type locality for species • †Meekopora • †Meekopora eximia • †Meekospira • †Meekospira bambooformis • †Meekospira batteni • †Meekospira evansvillensis • †Meekospira minuta – type locality for species • †Megalometer – type locality for genus • †Megalometer lata – type locality for species • †Megastrophia • †Megastrophia profunda • †Megathentomum – type locality for genus • †Megathentomum pustulatum – type locality for species • †Megathentomum scudderi – type locality for species • †Megistocrinus • †Melinophlebia – type locality for genus • †Melinophlebia analis – type locality for species • †Melocrinites • †Melocrinites obpyramidalis • †Merista • †Meristina • †Mesoblastus – tentative report • †Mesolobus • †Mesoplica • †Mesoplica mesicostalis – tentative report • †Metacheliphlebia • †Metacheliphlebia elongata – type locality for species • †Metachorus • †Metachorus testudo – type locality for species • †Metacoceras'' • †Metacoceras copei – type locality for species • †Metaconularia • †Metaconularia manni • †Metatarbus – type locality for genus • †Metatarbus triangularis – type locality for species • †Metopolichas • †Metopolichas breviceps • †Miamia – type locality for genus • †Miamia bronsoni – type locality for species • †Microcaracrinus • †Microcaracrinus conjugulus – type locality for species • †Microreticulatisporites • †Microreticulatisporites concavus • †Microreticulatisporites harrisonii • †Microreticulatisporites lunatus • †Microreticulatisporites nobilis • †Microreticulatisporites sulcatus • †Milosaurus – type locality for genus • †Milosaurus mccordi – type locality for species • †Miobatrachus – type locality for genus • †Miobatrachus romeri – type locality for species • †Mischoptera • †Mischoptera douglassi – type locality for species • †Modiolopsis • †Modiomorpha • †Modiomorpha concentrica • †Modiomorphella • †Monograptus'' • †Monograptus dubius • †Monograptus vomerinus • †Monomuchites • †Monomuchites annularis • †Monopteria • †Monopteria longa • †Mooreisporites • †Mooreisporites inusitatus • †Mooreoceras • †Moundocrinus • †Moundocrinus osagensis – or unidentified comparable form • †Mourlonia • †Mulceodens • †Mulceodens sibleyense – or unidentified related form • †Murchisonia • †Murchisonia akidota • †Murchisonia anderdoniae • †Murchisonia sibleyensis • †Murospora • †Murospora kosankei • †Myelodactylus • †Mylacris – type locality for genus • †Mylacris ampla – type locality for species • †Mylacris anthracophila – type locality for species • †Mylacris antiqua – type locality for species • †Mylacris diplodiscus – type locality for species • †Mylacris sellardsi • †Mylacris similis – type locality for species • †Myriotheca • †Myriotheca arnoldi – type locality for species • †Myriotheca scaberrima • †Mysticocrinus – report made of unidentified related form or using admittedly obsolete nomenclature • †Myxinikela – type locality for genus • †Myxinikela siroka – type locality for species ==N==

• †Nacekomia – type locality for genus • †Nacekomia rossae – type locality for species • †Narkema – type locality for genus • †Narkema taeniatum – type locality for species • †Naticonema • †Naticopsis'' • †Naticopsis carleyana • †Naticopsis planifrons • †Naticopsis waterlooensis – type locality for species • †Nectoptilus – type locality for genus • †Nectoptilus mazonus – type locality for species • †Neilsonia • †Neilsonia welleri • †Nemastomoides – type locality for genus • †Nemastomoides longipes – type locality for species • †Nemavermes – type locality for genus • †Nemavermes mackeei – type locality for species • †Neochonetes • †Neochonetes granulifer • †Neofouquea – type locality for genus • †Neofouquea suzanneae – type locality for species • †Neospirifer • †Neospirifer dunbari • †Neospirifer triplicatus • †Neuropteris'' • †Neuropteris clarksoni • †Neuropteris dussarti • †Neuropteris ovata • †Neuropteris parvifolia • †Neuropteris rarinervis • †Neuropteris scheuchzeri • †Neuropteris schlehani • †Neuropteris tennesseeana • †Neuropteris tenuifolia • †Nigeroplica • †Nigeroplica illinoisensis – tentative report • †Nodonema • †Nodonema granulatum • †Nucleospira • †Nucleospira minima • Nucula'' • †Nuculoidea – tentative report • †Nuculopsis • †Nuculopsis girtyi • †Nummicrinus • †Nummicrinus waukoma ==O==

• †Odontopteris • †Oligocarpia • †Oligotypus • †Oligotypus makowskii – type locality for species • †Onychopterella – tentative report • †Onychopterella pumilis • †Ootarbus – type locality for genus • †Ootarbus ovatus – type locality for species • †Ootarbus pulcher – type locality for species • †Opiliotarbus • †Opiliotarbus elongatus – type locality for species • †Orbiculoidea • †Orbiculoidea missouriensis • †Orbinaria • †Orbinaria brownensis – tentative report • †Orthomylacris • †Orthomylacris contorta – type locality for species • †Orthomylacris gurleyi – type locality for species • †Orthomylacris mansfieldi • †Orthomylacris rigida – type locality for species • †Orthonychia • †Orthonychia chesterense • †Orthospirifer • †Orthospirifer iowensis • †Orthotarbus • †Orthotarbus minutus – type locality for species • †Orthotarbus robustus – type locality for species • †Otarion • †Ovatia • †Ovatia nascens • †Ovopteris • †Ovopteris communis • †Oxynoblatta • †Oxynoblatta triangularis – type locality for species • †Oxyprora • †Oxyprora mesialis – type locality for species • †Oxyprora prattenanum – type locality for species ==P==

• †Pachystrophia – tentative report • †Palaeobuthus – type locality for genus • †Palaeobuthus distinctus – type locality for species • †Palaeocarria – type locality for genus • †Palaeocarria ornata – type locality for species • †Palaeodictyopteron – report made of unidentified related form or using admittedly obsolete nomenclature • †Palaeodictyopteron latipenne – type locality for species • †Palaeodictyopteron mazonum – type locality for species • †Palaeolima • †Palaeolima equistriata • †Palaeolima retifer • †Palaeolima retifera • †Palaeoneilo • †Palaeoneilo taffiana • †Palaeopisthacanthus – type locality for genus • †Palaeopisthacanthus schucherti – type locality for species • †Palaeopteridium • †Palaeopteridium reussii • †Palaeostachys • †Palaeostachys andrewsii • †Palaeostylus • †Palaeozygopleura • †Palaeozygopleura venusta • †Palaeozygopleura welleri • †Palaeozygopleura wortheni – type locality for species • †Palaiotaptus – type locality for genus • †Palaiotaptus mazonus – type locality for species • †Palenarthrus – type locality for genus • †Palenarthrus impressus – type locality for species • †Paleospora • †Paleospora fragila • †Palmatopteris • †Parachaetetes • †Paraconularia • †Paraisobuthus • †Paraisobuthus virginiae – type locality for species • †Parajuresania • †Parajuresania nebrascensis • †Parallelodon • †Parallelodon obsoletus • †Parallelodon sangamonensis • †Parallelora • †Parallelora nupera • †Paralogopsis – type locality for genus • †Paralogopsis longipes – type locality for species • †Paramphicrinus – type locality for genus • †Paramphicrinus oklahomaensis – type locality for species • †Parapaolia • †Parapaolia superba – type locality for species • †Paraparchites • †Paraparchites carbonaria • †Paraparchites nicklesi • †Paraphorhynchus • †Paraphorhynchus striatocostatum • †Paratarbus – type locality for genus • †Paratarbus carbonarius – type locality for species • †Pareinoblatta • †Pareinoblatta sellardsi – type locality for species • †Paromylacris • †Paromylacris ampla – type locality for species • †Paromylacris rotunda – type locality for species • †Parulocrinus • †Parulocrinus pontiacensis – type locality for species • †Patellilabia • †Patellilabia chesterensis • †Paucicrura • †Paucijaculum – type locality for genus • †Paucijaculum samamithion – type locality for species • †Paupospira • †Paupospira thebesensis – type locality for species • †Pecopteris'' • †Pecopteris plumosa • †Pecopteris serrulata • †Pecopteris vestita • †Pendulostachys – type locality for genus • †Pendulostachys cingulariformis – type locality for species • †Pentaramicrinus • †Pentaramicrinus bimagnaramus • †Pentremites • †Pentremites clavatus • †Pentremites godoni • †Pentremites obesus • †Pentremites okawensis • †Pentremites pyriformis • †Pentremites springeri • †Pentremites tulipaformis • †Pentremoblastus • †Pericalyphe – type locality for genus • †Pericalyphe longa – type locality for species • †Periechocrinus'' • †Periechocrinus chicagoensis • †Periechocrinus infelix • †Periechocrinus marcouanus • †Periechocrinus necis • †Periechocrinus urniformis • †Pernopecten • †Pernopecten attenuatus – tentative report • †Pernopecten ohioensis • †Perotriletes • †Perotriletes parvigracilus • †Petrochus • †Petrochus conica • †Petrochus mellaria – or unidentified comparable form • †Phacops'' • †Phacops norwoodensis • †Phanerotrema • †Pharkidonotus • †Pharkidonotus harrodi – type locality for species • †Pharkidonotus percarinatus • †Phascolophyllaphycus • †Phascolophyllaphycus lohrensis • †Phestia • †Phestia bellistriatus • . †Phlegethontia'' • †Phlegethontia longissima – type locality for species • †Phlyctiscapha • †Phragmoceras • †Phragmolites • †Phragmolites multinotatus – type locality for species • †Phyloblatta • †Phyloblatta diversipennis – type locality for species • †Phyloblatta hilliana – type locality for species • †Phymatopleura • †Pilosisporites • †Pilosisporites williamsii • †Pisocrinus • †Pityosporites • †Planisporites • †Planisporites granifer • †Platyceras • †Platyceras lineata • †Platyceras subrotundum • †Platycrinus • †Platylichas • †Platymylacris • †Platymylacris paucinervis – type locality for species • †Platysomus'' • †Platysomus circularis • †Platystrophia • †Platystrophia biforata • †Platyzona • †Plectatrypa • †Pleophrynus – type locality for genus • †Pleophrynus ensifer – type locality for species • †Pleurojulus • †Pleurojulus biornatus – or unidentified comparable form • †Plicochonetes • †Plicochonetes glenparkensis – tentative report • †Plummericrinus • †Plummericrinus erectus • †Pohlispongia – type locality for genus • †Pohlispongia monosphaera – type locality for species • †Pojetaconcha • †Pojetaconcha limatula • †Poliochera – type locality for genus • †Poliochera gibbsi – type locality for species • †Poliochera glabra – type locality for species • †Poliochera punctulata – type locality for species • †Polusocrinus • †Polusocrinus avanti • †Polyernus – type locality for genus • †Polyernus complanatus – type locality for species • †Polyetes – type locality for genus • †Polyetes furcifer – type locality for species • †Polygonocrinus • †Polygonocrinus spiniferus – type locality for species • †Polysentor'' – type locality for genus • †Polysentor gorbairdi – type locality for species • †Porcellia • †Porcellia chesterensis • †Poteriocrinus – tentative report • †Potonieisporites • †Potonieisporites elegans • †Priapulites – type locality for genus • †Priapulites konecniorum – type locality for species • †Probletocrinus – type locality for genus • †Probletocrinus curtus – type locality for species • †Prochoroptera – type locality for genus • †Prochoroptera calopteryx – type locality for species • †Procoronaspora • †Procoronaspora dumosa • †Prodentalium • †Productella • †Productella subalata • †Proetus'' • †Proetus canalis • †Proetus determinatus • †Proetus handwerki • †Progenentomum – type locality for genus • †Progenentomum carbonis – type locality for species • †Promexyele • †Promexyele peyeri • †Promylacris • †Promylacris ovalis – type locality for species • †Promytilus – tentative report • †Promytilus annosus • †Protatrypa • †Protoblattoidea – report made of unidentified related form or using admittedly obsolete nomenclature • †Protoblattoidea minor • †Protoblattoidea sellardsi • †Protodictyon – type locality for genus • †Protodictyon pulchripenne – type locality for species • †Protoleptostrophia • †Protomegastrophia • and Titanophasma †Protophasma'' • †Protophasma galtieri – type locality for species • †Protopilio • †Protopilio depressus – type locality for species • †Protoscolex • †Protoscolex ruedemanni • †Protosolpuga – type locality for genus • †Protosolpuga carbonaria – type locality for species • †Pseudaviculopecten • †Pseudaviculopecten princeps • †Pseudoatrypa • †Pseudoatrypa devoniana • †Pseudogerarus – type locality for genus • †Pseudogerarus scudderi – type locality for species • †Pseudomonotis • †Pseudomonotis equistriata • †Pseudophlegethontia'' – type locality for genus • †Pseudophlegethontia turnbullorum – type locality for species • †Pseudorthoceras • †Pseudorthoceras knoxense • †Pseudosphonophyton • †Pseudosphonophyton höegii – type locality for species • †Pseudozygopleura • †Pseudozygopleura yandellana – or unidentified comparable form • †Pterinea • †Pterinea thebesensis • †Pterochiton • †Pterochiton carbonarius – type locality for species • †Pteronites • †Pterotheca • †Pterotheca triangularis – type locality for species • †Pterotocrinus • †Pterotocrinus abruptus • †Pterotocrinus armatus • †Pterotocrinus capitalis • †Pterotocrinus coronarius • †Pterotocrinus lingulaformis • †Pterotocrinus rugosus • †Ptychocarpus • †Pulchratia – tentative report • †Pulchratia symmetrica • †Punctatisporites • †Punctatisporites aerarius • †Punctatisporites curviradiatus • †Punctatisporites decorus • †Punctatisporites edgarensis • †Punctatisporites flavus • †Punctatisporites glaber • †Punctatisporites gracilirugosus – or unidentified comparable form • †Punctatisporites irrasus • †Punctatisporites kankakeensis • †Punctatisporites minutus • †Punctatisporites nahannensis • †Punctatisporites obesus • †Punctatisporites obliquus • †Punctatisporites orbicularis • †Punctatisporites pseudolevatus – or unidentified comparable form • †Punctatisporites vermiculatus • †Punctatosporites • †Punctatosporites minutus • †Punctospirifer • †Punctospirifer kentuckensis • †Punctospirifer transversus • †Pustulatisporites • †Pustulatisporites crenatus • †Pustulatisporties • †Pustulatisporties crenatus • †Pycnosaccus • †Pyrgocystis ==Q==

• †Quadrochonetes • †Quadrochonetes geronticus • †Quasillinites • †Quasillinites diversiformis ==R==

• †Radiizonates • †Radiizonates striatus • †Rafinesquina • †Rafinesquina mesicosta • †Raistrickia • †Raistrickia abdita • †Raistrickia aculeata • †Raistrickia aculeolata • †Raistrickia breveminens • †Raistrickia brevemines • †Raistrickia carbondalensis • †Raistrickia crinita • †Raistrickia crocea • †Raistrickia dispar • †Raistrickia fibrata – or unidentified comparable form • †Raistrickia grovensis • †Raistrickia irregularis • †Raistrickia lacerata • †Raistrickia lowellensis • †Raistrickia pilosa • †Raistrickia pontiacensis • †Raistrickia prisca • †Raistrickia solaria • †Raistrickia subcrinita • †Raistrickia superba • †Rasstriga – type locality for genus • †Rasstriga americana – type locality for species • †Redstockia • †Reinschospora • †Reinschospora magnifica • †Reinschospora triangularis • †Remopleurides • †Remopleurides missouriensis • †Renaultia • †Renisporites • †Renisporites confossus • †Resserella • †Reticulariiina • †Reticulariiina spinosa • †Reticulariina • †Reticulariina spinosa • †Reticulatia • †Reticulatia huecoensis • †Reticulatisporites • †Reticulatisporites lacunosus • †Reticulatisporites muricatus • †Reticulatisporites polygonalis • †Reticulatisporites reticulatus • †Reticulatisporites splendens • †Reticulograptus • †Reticulograptus polymorphus • †Retispira • †Retispira monronensis – type locality for species • †Retispira nodocostata – type locality for species • †Retispira ornatus – type locality for species • †Rhabdoxylon • †Rhabdoxylon americanum – type locality for species • †Rhineoderma • †Rhineoderma piasaensis – type locality for species • †Rhipidium • †Rhipidomella • †Rhipidomella carbonaria • †Rhipidomella rockportensis • †Rhodea • †Rhodea trichomanoides – or unidentified comparable form • †Rhodeopteridium • †Rhodeopteridium phillipsii – type locality for species • †Rhombopora • †Rhynchogonium • †Rhynchogonium fayettevillense • †Rhynchonella'' • †Rhynchopora • †Rhynchopora hamburgensis • †Rhynchopora prisca • †Rhynchopora pustulosa • †Rhynchotreta • †Rugosochonetes • †Rugosochonetes gregarius – or unidentified comparable form • †Rugosochonetes pikensis • †Ruthiphiala • †Ruthiphiala sublaevis ==S==

• †Saccoglossus • †Saccoglossus testa – type locality for species • †Saetograptus • †Saetograptus colonus • †Sagenodus • †Sagenodus cristatus – type locality for species • †Sagittoceras • †Sagittoceras hathawayanum – type locality for species • †Salterospira • †Salterospira chesterensis • †Salterospira okawensis • †Salvadorea • †Salvadorea randi • †Samaropsis • †Savagella • †Savagella illinoisensis • †Savagella lindahli • †Savitrisporites • †Savitrisporites asperatus • †Savitrisporites majus • †Savitrisporites nux • †Scepasma – type locality for genus • †Scepasma gigas – type locality for species • †Sceptropora • †Sceptropora facula • †Schizodus • †Schizophoria • †Schizophoria hortonensis • †Schizophoria iowensis • †Schizotreta • †Schizotreta tenuilamellata • †Schondorfia – type locality for genus • †Schondorfia fungosa – type locality for species • †Schopfites • †Schopfites carbondalensis • †Schopfites colchesterensis • †Schopfites dimorphus • †Schuchertella • †Schuchertella hardinensis • †Schuchertella louisianaensis • †Schuchertella propinqua • †Schuchertiella – type locality for genus • †Schuchertiella gracilis – type locality for species • †Schulzospora • †Schulzospora rara • †Sciadiocrinus • †Sciadiocrinus tegillum – type locality for species • †Scolecopteris – tentative report • †Sedenticellula • †Sedenticellula hamburgensis • †Selenella • †Selenella pediculus • †Semiproductus • †Senftenbergia • †Sentosia • †Sentosia ignota – tentative report • †Septameroceras • †Serpulopsis • †Serpulospira • †Serpulospira diversiformis • †Shansiella • †Shansiella broadheadi – tentative report • †Shumardella • †Shumardella fracta • †Sievertsia • †Sigillaria'' • †Sigillaria mamillaris – or unidentified comparable form • †Sigillaria rugosa • †Sigillariostrobus • †Silphion – type locality for genus • †Silphion latipenne – type locality for species • †Similihariotta – type locality for genus • †Similihariotta dabasinskasi – type locality for species • † Simplicius • †Simplicius simplex – type locality for species • †Sinuspores • †Sinuspores sinuatus • †Siphonocrinus • †Siphonocrinus nobilis • †Skenidioides • Solemya'' • †Solemya trapezoides • †Soleniscus • †Soleniscus primogenius • †Solenochilus • †Solenochilus shumwayense – type locality for species • †Sorellophrynus – type locality for genus • †Sorellophrynus carbonarius – type locality for species • †Spackmanites • †Spackmanites facierugosus – or unidentified comparable form • †Spackmanites habibii • †Sphaerexochus • †Sphaerexochus roemingeri • †Sphaerexochus romingeri • †Sphaerocoryphe • †Sphaerocoryphe arachniformis • †Sphenophyllum'' • †Sphenophyllum cuneifolium • †Sphenophyllum emarginatum • †Sphenophyllum longifolium – or unidentified comparable form • †Sphenopteris • †Sphenopteris distans • †Sphenopteris preslesensis • †Sphenosphaera • †Sphenosphaera consimilis – type locality for species • †Spilaptera • †Spilaptera americana – type locality for species • †Spilomastax – type locality for genus • †Spilomastax oligoneurus – type locality for species • †Spinatrypa • †Spinatrypa bellula • †Spinatrypa occidentalis • †Spinosporites • †Spinosporites exiguus • †Spinyplatyceras • †Spinyplatyceras fornicatum • †Spondylerpeton – type locality for genus • †Spondylerpeton spinatum – type locality for species • †Srokalarva – type locality for genus • part and counterpart †Srokalarva berthei'' – type locality for species • †Staurocephalus • †Staurocephalus obsoleta • †Stearoceras • †Stearoceras involutum – type locality for species • †Stegerhynchus • †Stegerhynchus antiqua • †Stegerhynchus concinna • †Stegocoelia • †Stegocoelia okawensis • †Stellarocrinus • †Stellarocrinus bilineatus – type locality for species • †Stellarocrinus virgilensis – or unidentified comparable form • †Stellatheca • †Stellatheca latiloba • †Stellatheca ornata • †Stenopareia • †Stenopecrinus • †Stenopecrinus planus – or unidentified comparable form • †Stenoscisma • †Stenoscisma explanatum • †Stephanopsis – type locality for genus • †Stephanopsis mirandus – type locality for species • †Stephanozyga • †Stethacanthus'' • †Stethacanthus altonensis • †Stictopora • †Stigmaria • †Stigmaria ficoides • †Stigmaria stellata • †Stigmaria wedingtonensis • †Straparollus • †Straparollus subquadratus • †Streblochondria • †Striispirifer • †Strobeus • †Strobeus brevis • †Strobeus paludinaeformis • †Strophomena • †Strophostylus • †Strophostylus wortheni – type locality for species • †Styptobasis • †Styptobasis aculeata – type locality for species • †Subglobosochonetes • †Subglobosochonetes jerseyensis • †Symmorium'' – type locality for genus • †Symmorium reniforme – type locality for species • †Syntonoptera – type locality for genus • †Syntonoptera schucherti – type locality for species • †Sypharoptera – type locality for genus • †Sypharoptera pneuma – type locality for species • †Syringopora • †Syringothyris • †Syringothyris extenuata • †Syringothyris hannibalensis ==T==

• †Tainoceras • †Tainoceras monilifer • †Tainoceras sexlineatum – type locality for species • †Telangiopsis • †Telangium • †Telmatoscorpio – type locality for genus • †Telmatoscorpio brevipectus – type locality for species • †Tentaculites'' • †Tentaculites bellulus • †Terpnocrinus – type locality for genus • †Terpnocrinus ocoyaensis – type locality for species • †Testajapyx – type locality for genus • †Testajapyx thomasi – type locality for species • †Thalamocrinus • †Thaleops • †Thaleops depressicapitata • †Thallites • †Thallites dichopleurus • †Thebanaspis • †Thebanaspis channahonensis • †Thebesia • †Thebesia thebesensis • †Thelyphrynus – type locality for genus • †Thelyphrynus elongatus – type locality for species • †Thesoneura – type locality for genus • †Thesoneura americana – type locality for species • †Thigriffides • †Thigriffides roundyi • †Tholocrinus • †Tholocrinus discus – type locality for species • †Tholocrinus unionensis – type locality for species • †Thuroholia • †Thuroholia cribriformis – type locality for species • †Thuroholia croneisi – type locality for species • †Thyloblatta • †Thymospora • †Thymospora pseudothiessenii • †Titanoscorpio – type locality for genus • †Titanoscorpio douglassi – type locality for species • †Torispora • †Torispora securis • †Torynifer • †Torynifer setiger • †Tranodis • †Tranodis castrensis • †Tremanotus • †Trepospira • †Trepospira depressa • †Triamara • †Triamara tumida • †Triamara ventricosa • †Trigera – tentative report • †Trigonocarpus • †Trigonoglossa – tentative report • †Trigonoglossa nebrascensis • †Trigonotarbus • †Trigonotarbus carbonarius – type locality for species • †Trihyphaecites • †Trihyphaecites triangulatus • †Triquitrites • †Triquitrites additus • †Triquitrites arculatus – or unidentified comparable form • †Triquitrites bransonii • †Triquitrites crassus • †Triquitrites desperatus • †Triquitrites dividuus • †Triquitrites exiguus • †Triquitrites minutus • †Triquitrites protensus • †Triquitrites pulvinatus • †Triquitrites sculptilis • †Triquitrites spinosus • †Triquitrites subspinosus • †Triquitrites trigonappendix • †Triquitrites truncatus • †Triticites • †Triticites pauper • †Triticites turgidus • †Trochonema • †Trochonema umbilicata – or unidentified comparable form • †Trochurus • †Trochurus welleri • †Tropidodiscus • †Tropidodiscus compticarinatus • †Tuberculatosporites • †Tuberculatosporites robustus • , or the Tully monster †Tullimonstrum'' – type locality for genus • †Tullimonstrum gregarius – type locality for species • †Turnbullia – type locality for genus • †Turnbullia priscillae – type locality for species • †Tylothyris • †Tylothyris missouriensis ==U==