List of the Paleozoic life of Kentucky

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

A

• †Abatocrinus
  • †Abatocrinus grandis
  • †Abatocrinus steropes
  • †Abatocrinus n. sp. – informal

• 

  Fossilized calyx of the Carboniferous crinoid ("sea lily") Abrotocrinus

  †Abrotocrinus
  • †Abrotocrinus coreyi
  • †Abrotocrinus debrae
  • †Abrotocrinus manus – tentative report
  • †Abrotocrinus springeri
  • †Abrotocrinus unicus
• †Achatella
• †Achistrum
  • †Achistrum brownwoodensis
  • †Achistrum ludwigi
  • †Achistrum monochordata
  • †Achistrum nicholsoni
• †Acidaspis
• †Acidaspsis
• †Acinophyllum
  • †Acinophyllum davisi
• †Aclisina
  • †Aclisina golconda
• †Acolocrinus
  • †Acolocrinus hydraulicus
• †Acratia
• † Acrophyllum
  • †Acrophyllum clarki
  • †Acrophyllum conigerum
• †Actinoceras
  • †Actinoceras altopontense – type locality for species
  • †Actinoceras kentuckiense – type locality for species

• 

  Fossilized calyx and partial stem of the Devonian-Permian crinoid ("sea lily") Actinocrinites

  †Actinocrinites
  • †Actinocrinites eximius
  • †Actinocrinites gibsoni
  • †Actinocrinites jugosus
  • †Actinocrinites scitulus
• †Adinocrinus
  • †Adinocrinus nodosus
• †Aerocortex
  • †Aerocortex kentuckiensis
• †Agaricocrinus
  • †Agaricocrinus americanus
  • †Agaricocrinus crassus
  • †Agaricocrinus inflatus – tentative report
  • †Agaricocrinus planoconvexus
  • †Agaricocrinus wortheni – tentative report
• †Agassizocrinus
  • †Agassizocrinus conicus
  • †Agassizocrinus gibbosua
  • †Agassizocrinus laevis
  • †Agassizocrinus lobatus
• †Ahrensisporites
  • †Ahrensisporites guerickei
• †Alaskadiscus
  • †Alaskadiscus magnus
  • †Alaskadiscus subacutus
• †Alastega
  • †Alastega martini – type locality for species

• 

  Fossilized fronds of the Carboniferous-Early Cretaceous seed fern Alethopteris

  †Alethopteris
  • †Alethopteris decurrens
  • †Alethopteris lonchitica – or unidentified comparable form
• †Allonychia
  • †Allonychia flanaganensis
• †Alloprosallocrinus
  • †Alloprosallocrinus conicus
• †Allorisma
• †Allosaccus
• †Allumettoceras
  • †Allumettoceras tenerum – or unidentified comparable form
• †Alveolites
  • †Alveolites asperus
  • †Alveolites constans
  • †Alveolites expatiatus
  • †Alveolites fibrosus
  • †Alveolites goldfussi
  • †Alveolites labrosus
  • †Alveolites louisvillensis
  • †Alveolites minimus
  • †Alveolites mordax
  • †Alveolites squamosus
  • †Alveolites undosus
  • †Alveolites winchellana
• †Amaurotoma
  • †Amaurotoma leavenworthana
• †Amblytochiton
  • †Amblytochiton incomptus – type locality for species
• †Ambochia
• †Ambonychia
  • †Ambonychia byrnesi
  • †Ambonychia ulrichi – or unidentified comparable form
• †Ammonellipsites
• †Amphiscapha
  • †Amphiscapha catilloides
• †Amphissites
  • †Amphissites centronotoides
  • †Amphissites mimicus
  • †Amphissites planoventralis
  • †Amphissites vanniae
• †Amphoracrinus
• †Amplexizaphrentis
  • †Amplexizaphrentis compressus
  • †Amplexizaphrentis spinulosus

• 

  Ordovician-Permian bryozoan Amplexopora

  †Amplexopora
  • †Amplexopora minnesotensis
  • †Amplexopora minor
  • †Amplexopora persimilis
  • †Amplexopora winchelli – or unidentified comparable form
• †Amplexus
  • †Amplexus fragilis
• †Amygdalocystites
  • †Amygdalocystites fiorealis
• †Anapiculatisporites
  • †Anapiculatisporites minor
• †Anastrophia – tentative report
• †Anazyga
  • †Anazyga recurvirostra
• †Anchiopella
  • †Anchiopella anchiops
• †Anematina
  • †Anematina proutana
• † Anisophyllum
  • †Anisophyllum trifurcatum
  • †Anisophyllum unilargum – tentative report
• †Ankyropteris
  • †Ankyropteris brongniartii

• 

  Fossil of the Carboniferous horsetail relative Annularia

  †Annularia
  • †Annularia galioides
• †Anomalocrinus
• †Anomalodonta
  • †Anomalodonta gigantea
• †Aorocrinus
  • †Aorocrinus nodulus – type locality for species
• †Aparchites
  • †Aparchites minutissimus
• †Apiculatasporites
  • †Apiculatasporites variocorneus
• †Apodasmocrinus
  • †Apodasmocrinus punctatus
• †Aptochilina
• †Arabellites
  • †Arabellites cornutus
• †Arachnophyllum
  • †Arachnophyllum mamillare
  • †Arachnophyllum mammillare
  • †Arachnophyllum pentagonum – type locality for species
  • †Arachnophyllum quadrangulare
  • †Arachnophyllum separatum
  • †Arachnophyllum sinemurum – type locality for species
  • †Arachnophyllum striatum

• 

  Fossilized shell and spines of the Late Devonian-Permian sea urchin Archaeocidaris

  †Archaeocidaris
  • †Archaeocidaris norwoodi
• †Archaeocrinus
  • †Archaeocrinus peculiaris
• †Archaeopitys
  • †Archaeopitys eastmanii
• †Archaeopteris
  • †Archaeopteris eastmanii

• 

  Fossils of the Carboniferous-Permian bryozoan Archimedes

  †Archimedes
  • †Archimedes communis
  • †Archimedes compactus
  • †Archimedes confertus
  • †Archimedes distans
  • †Archimedes invaginatus
  • †Archimedes lativolvis
  • †Archimedes macfarlani
  • †Archimedes meekanoides
  • †Archimedes meekanus
  • †Archimedes proutanus
  • †Archimedes sublaxus
  • †Archimedes swallowvanus
  • †Archimedes terebriformis
• †Archinacella
  • †Archinacella simulatrix
• †Arnoldella
  • †Arnoldella minuta
• †Arthraria
  • †Arthraria rogersensis
• †Arthropitys
  • †Arthropitys communis
• †Arthroxylon
• †Asolanus
• †Aspidopora
  • †Aspidopora newberryi
• †Astarella
• †Astartella – tentative report
  • †Astartella concentrica

• 

  Fossilized teeth of the Devonian-Cretaceous shark Asteracanthus

  †Asteracanthus
  • †Asteracanthus siderius – type locality for species
• †Asterophyllites
  • †Asterophyllites charaeformis
  • †Asterophyllites longifolius
• †Asthenophyllum
  • †Asthenophyllum davisi – type locality for species
  • †Asthenophyllum scitulum – tentative report
• †Astrocerium
  • †Astrocerium hisingeri
  • †Astrocerium niagarense
  • †Astrocerium venustum
• †Atactopora
• †Atactoporella
  • †Atactoporella newportensis
• †Atelestocrinus
  • †Atelestocrinus kentuckyensis – type locality for species
• †Athyris
  • †Athyris fultonensis

• 

  Fossilized shell of the Late Ordovician-Carboniferous brachiopod Atrypa

  †Atrypa
• †Augustoceras
  • †Augustoceras shideleri – type locality for species
• †Aulacera
  • †Aulacera cylindrica
  • †Aulacera intermedia
  • †Aulacera nodulifera
  • †Aulacera plummeri
• †Aulocrinus
  • †Aulocrinus bellus
• †Aulocystis
  • †Aulocystis auloporoidea
  • †Aulocystis jacksoni
  • †Aulocystis procumbens – tentative report
  • †Aulocystis transitorius – type locality for species

• 

  Fossil of the Late Ordovician-Permian tabulate coral Aulopora

  †Aulopora
  • †Aulopora precius
  • †Aulopora pygmaea – tentative report
  • †Aulopora tubiporoides
• †Australosutura
• †Aviculopecten
  • †Aviculopecten germanus – or unidentified related form

B

• Bairdia
  • †Bairdia salemensis
• †Balticopora
  • †Balticopora tenuimurale
• †Barycrinus
  • †Barycrinus asteriscus – or unidentified related form
  • †Barycrinus cornutus
  • †Barycrinus rhombiferus
  • †Barycrinus sculptilis
  • †Barycrinus sculptus
  • †Barycrinus spurius
  • †Barycrinus stellatus
  • †Barycrinus tumidus
• †Batherocystis
  • †Batherocystis appressa
• †Bathyurus
  • †Bathyurus ingalli – or unidentified comparable form
• †Batocrinus
  • †Batocrinus calyculus
  • †Batocrinus icosodactylus
  • †Batocrinus spergenensis
• †Batostoma
  • †Batostoma humile – or unidentified comparable form
• †Batostomella
  • †Batostomella gracilis
• †Beecheria
  • †Beecheria formosa – tentative report
• †Belemnospongia
  • †Belemnospongia parmula

• 

  Fossilized shell of the Silurian-Early Triassic mollusc Bellerophon

  †Bellerophon
• †Beloitoceras
  • †Beloitoceras huronense – or unidentified comparable form
• †Benthanyphyllum
  • †Benthanyphyllum prateriforme
  • †Benthanyphyllum robustum
• Berenicea
• †Beyrichia
  • †Beyrichia chambersi
• †Beyrichoceras
• †Billingsastraea
  • †Billingsastraea yandelli
• †Billingsocystis
  • †Billingsocystis invaginata
• †Bisatoceras – tentative report
• †Blairocrinus
  • †Blairocrinus protuberatus – type locality for species
• †Blothrocrinus
  • †Blothrocrinus swallovi
• †Blothrophyllum
  • †Blothrophyllum zaphrentiforme
• †Bolbopisthia
  • †Bolbopisthia progressa reticulata – or unidentified comparable form
• †Bollia
  • †Bollia persulcata
• †Borestus
• †Bostonia
  • †Bostonia perplexa
• †Bothrodendron
  • †Bothrodendron minutifolium
• †Bowmanites
  • †Bowmanites dawsoni
• †Brachiospongia
  • †Brachiospongia digitata
• †Brachymetopus
• †Brachythyris
  • †Brachythyris subcardiformis
  • †Brachythyris suborbicularis
• †Bucanapsis
• †Bucania
  • †Bucania halli
  • †Bucania pojetai – type locality for species
  • †Bucania rugatina
  • †Bucania subangulata
  • †Bucania sublata
• †Bucanopsis
  • †Bucanopsis carinifera
  • †Bucanopsis diabloensis
• †Bulimorpha
  • †Bulimorpha bulimiformis
  • †Bulimorpha elongata

• 

  Life restoration of the Early Ordovician-Silurian trilobite Bumastus

  †Bumastus
• †Byssonychia
  • †Byssonychia radiata
  • †Byssonychia richmondensis
• Bythocypris
  • †Bythocypris cylindrica
  • †Bythocypris lydeae

C

• 

  Fossilized stems from the Carboniferous-Permian horsetail relative Calamites

  †Calamites
  • †Calamites cistii
  • †Calamites undulatus
• †Calamocarpon
  • †Calamocarpon insignis
• †Calamopitys
  • †Calamopitys americana
  • †Calamopitys foerstei
• †Calamopteris
  • †Calamopteris hippocrepis
• †Calamoptys
  • †Calamoptys foerstei
• †Calamospora
  • †Calamospora hartungiana
• †Calamostachys
  • †Calamostachys binneyana
• †Calapoecia
  • †Calapoecia huronensis

• 

  A polished round of the permineralised Late Devonian-Carboniferous wood Callixylon

  †Callixylon
  • †Callixylon brownii
• †Calopora
  • †Calopora ramosa
• †Calostylis
  • †Calostylis lindstroemi
  • †Calostylis spongiosa
• †Calyptaulax
  • †Calyptaulax strasburgensis – or unidentified comparable form
• †Camarotoechia
  • †Camarotoechia mutata
• †Camerella
  • †Camerella immatura – or unidentified related form

• 

  Fossilized shell of the Middle Ordovician-Silurian nautiloid cephalopod Cameroceras

  †Cameroceras
  • †Cameroceras rowenaense – type locality for species
  • †Cameroceras trentonense – or unidentified comparable form
• †Camptocrinus
  • †Camptocrinus crawfordsvillensis
  • †Camptocrinus nudus
• †Canadocystis
  • †Canadocystis tennesseensis
• †Cantabricanites – tentative report
  • †Cantabricanites greenei
• †Carabocrinus
  • †Carabocrinus micropunctatus
  • †Carabocrinus plate – informal
• †Carinaropsis
  • †Carinaropsis cymbula
  • †Carinaropsis explanata – type locality for species
  • †Carinaropsis minima
• †Cartersoceras
  • †Cartersoceras popei – type locality for species
  • †Cartersoceras shideleri
• †Catillocrinus
  • †Catillocrinus tennesseeae
• †Cavellina
• †Ceramophylla
  • †Ceramophylla alternatum
• †Ceramoporella
• †Cerartoleperditia
  • †Cerartoleperditia kentuckyensis
• †Ceratopsis
  • †Ceratopsis chambersi
  • †Ceratopsis intemedia
  • †Ceratopsis intermedia
  • †Ceratopsis oculifera – or unidentified related form

• 

  Fossil of the Middle-Late Ordovician trilobite Ceraurus

  †Ceraurus
• †Cestocrinus – tentative report
• †Chasmatopora
• †Cheirocystis
  • †Cheirocystis fultonensis – type locality for species
• †Chonetes
• †Cincinnaticrinus
  • †Cincinnaticrinus varibrachialis
• †Cincinnetina
  • †Cincinnetina meeki
  • †Cincinnetina multisecta
• †Cladochonus
  • †Cladochonus beecheri
  • †Cladochonus crassus
• †Cladopora
  • †Cladopora aculeata
  • †Cladopora acupicta
  • †Cladopora bifura
  • †Cladopora gulielmi
  • †Cladopora imbricata
  • †Cladopora menis – tentative report
  • †Cladopora ordinata
  • †Cladopora reticulata
• †Cladoxylon
• †Clathrospira
  • †Clathrospira conica
  • †Clathrospira subconica
• †Claudeonychia – tentative report
  • †Claudeonychia byrnesi
• †Cleionychia

• 

  Fossilized shell of the Middle Devonian-Permian brachiopod Cleiothyridina

  †Cleiothyridina
  • †Cleiothyridina hirsuta
  • †Cleiothyridina sublamellosa
• †Clepsydropsis
  • †Clepsydropsis bertrandi
  • †Clepsydropsis campbelli
  • †Clepsydropsis chaneyi
  • †Clepsydropsis titan
• †Climacograptus
  • †Climacograptus putillus
• †Clinopistha
  • †Clinopistha radiata
• †Codaster
  • †Codaster jessieae
• †Coeliocrinus
  • †Coeliocrinus subspinosus
• †Coenites
  • †Coenites verticillatus
• †Colaptomena
• †Colpomya
  • †Colpomya constricta
  • †Colpomya faba

• 

  Fossilized shell of the Late Devonian-Permian brachiopod Composita

  †Composita
  • †Composita subquadrata
  • †Composita trinuclea
• †Conostoma
  • †Conostoma anglogermanicum
  • †Conostoma oblongum
• †Constellaria
  • †Constellaria florida – or unidentified comparable form
  • †Constellaria teres
• †Conularia
  • †Conularia formosa
  • †Conularia trentonensis
• †Convolutispora
• †Coopericystis
  • †Coopericystis pyriformis
• †Cordaites
  • †Cordaites felicis

• 

  Fossil of the Middle Ordovician-Carboniferous horn coral Cornulites

  †Cornulites
• †Coronocystis
  • †Coronocystis angulatus
• †Cosmetocrinus
  • †Cosmetocrinus gracilis
• †Costalocrinus
  • †Costalocrinus conkini – type locality for species
  • †Costalocrinus cornutus
  • †Costalocrinus rex
• †Costatulites
  • †Costatulites richmondensis
• †Crania – tentative report
• †Craniops
  • †Craniops cincinnatiensis
• †Crassispora
  • †Crassispora kosankei
• †Craterophyllum
  • †Craterophyllum adnascens
  • †Craterophyllum invaginatum
  • †Craterophyllum solitarium
• †Cryptolithus
  • †Cryptolithus bellulus
  • †Cryptolithus recurvus
  • †Cryptolithus tesselatus
• †Ctenobolbina
  • †Ctenobolbina ciliata
• †Ctenodonta
  • †Ctenodonta logani – or unidentified related form
  • †Ctenodonta longa – or unidentified related form
  • †Ctenodonta nasuta – or unidentified comparable form
  • †Ctenodonta obliqua
  • †Ctenodonta regia
  • †Ctenodonta socialis
• †Cuffeyella
  • †Cuffeyella arachnoidea
• †Culmicrinus
  • †Culmicrinus verus
• †Cuneamya
• †Cupulocrinus
• †Cyathactis
  • †Cyathactis sedentarius
  • †Cyathactis typus
• †Cyathaxonia
  • †Cyathaxonia venusta

• 

  Fossilized calyx and partial stem of the Silurian-Permian crinoid ("sea lily") Cyathocrinites

  †Cyathocrinites
  • †Cyathocrinites asperrimus
  • †Cyathocrinites astralus – type locality for species
  • †Cyathocrinites farleyi
  • †Cyathocrinites glenni
  • †Cyathocrinites iowensis
  • †Cyathocrinites kelloggi
  • †Cyathocrinites multibrachiatus
  • †Cyathocrinites nodosus
  • †Cyathocrinites parvibrachiatus
• †Cyathophylloides
• †Cybelinidae
  • †Cybelinidae cranidium – informal
• †Cycloconcha
  • †Cycloconcha milleri
  • †Cycloconcha ovata – or unidentified related form
• †Cyclocyclopa
• †Cyclocystoides
• †Cyclogranisporites
  • †Cyclogranisporites aureus – or unidentified comparable form
  • †Cyclogranisporites minutus
• †Cyclonema
  • †Cyclonema minuta
• †Cyclopentagonopa
• †Cyclora – tentative report
• †Cydrocrinus
  • †Cydrocrinus concinnus – tentative report
  • †Cydrocrinus subramulosus – tentative report
• †Cymatonota
• †Cyphaspis
• †Cyphotrypa
  • †Cyphotrypa acervulosa
  • †Cyphotrypa clarksvillensis
• †Cypricardinia
  • †Cypricardinia indianensis
• †Cyrtina

• 

  Restoration of the Cambrian-Middle Devonian nautiloid cephalopod Cyrtoceras

  †Cyrtoceras
• †Cyrtodonta
  • †Cyrtodonta grandis
  • †Cyrtodonta subovata
• †Cyrtodontula
  • †Cyrtodontula umbonata
• †Cyrtolites
  • †Cyrtolites claysferryensis – type locality for species
  • †Cyrtolites inornatum
  • †Cyrtolites ornatus – tentative report
  • †Cyrtolites retrorsus
• †Cyrtospira
  • †Cyrtospira bicurvata – type locality for species
• †Cyrtostropha
  • †Cyrtostropha salteri
• †Cystihalysites
  • †Cystihalysites nexus
• †Cystiphylloides
  • †Cystiphylloides americanum
  • †Cystiphylloides crassatum
• †Cystiphyllum
  • †Cystiphyllum granilineatum
  • †Cystiphyllum niagarense
  • †Cystiphyllum spinulosum
• †Cystodictya
  • †Cystodictya lineata
• Cytherella

D

• †Dalejina
• †Dalmanella
  • †Dalmanella emacerata
  • †Dalmanella fertilis
  • †Dalmanella sulcata
• †Dalmanophyllum
  • †Dalmanophyllum gainesi
  • †Dalmanophyllum herzeri
  • †Dalmanophyllum linguliferum

• 

  Fossilized calyx of the Carboniferous crinoid ("sea lily") Decadocrinus

  †Decadocrinus
  • †Decadocrinus scalaris
• †Deceptrix
  • †Deceptrix hartsvillensis – or unidentified comparable form
  • †Deceptrix perminuta
• †Declinognathodus
  • †Declinognathodus delicatus – or unidentified related form
  • †Declinognathodus donetzianus
  • †Declinognathodus marginodosus
• †Decoroproetus
  • †Decoroproetus parviusculus
• †Deiroceras
  • †Deiroceras curdsvillense
• †Dekayia
• †Deliablastus
  • †Deliablastus cumberlandensis
• †Deltoidospora
  • †Deltoidospora priddyi
• †Densosporites
  • †Densosporites annulatus
  • †Densosporites glandulosus
  • †Densosporites sphaerotriangularis
• †Dentiblastus
• †Diabolocrinus
  • †Diabolocrinus vesperalis
• †Dichocrinus
  • †Dichocrinus ficus – tentative report
  • †Dichocrinus gracilis
  • †Dichocrinus pocillum – tentative report
  • †Dichocrinus simplex
  • †Dichocrinus ulrichi
• †Dictyophlois
  • †Dictyophlois reticulata
• †Dictyotomaria
  • †Dictyotomaria nyi
• †Dictyotriletes
  • †Dictyotriletes bireticulatus
• †Dielasma
  • †Dielasma formosa
• †Diestoceras
  • †Diestoceras indianense
• †Diichnia
  • †Diichnia kentuckiensis
• †Dilobella
• †Dimegelasma
• †Dimorphoceratoides
  • †Dimorphoceratoides adamsi – type locality for species
• †Dinophyllum
  • †Dinophyllum hoskinsoni
  • †Dinophyllum stokesi
• †Dinorthis
  • †Dinorthis pectinella
• †Diorychopora
  • †Diorychopora tenuis
• †Diploblastus

• 

  Cambrian graptolite Diplograptus

  †Diplograptus
• †Disphyllum
  • †Disphyllum synaptophylloides
• †Dizygocrinus
  • †Dizygocrinus biturbinatus
  • †Dizygocrinus montgomeryensis
  • †Dizygocrinus whitei
• †Doleroides
• †Dolichoharpes
• †Donaldina
  • †Donaldina zadoe
• †Dorycrinus
  • †Dorycrinus gouldi
  • †Dorycrinus quinquelobus
• †Drymopora
  • †Drymopora fascicularis
• †Dzhaprakoceras
  • †Dzhaprakoceras brodheadense – type locality for species

E

• †Ectenocrinus
  • †Ectenocrinus simplex
• †Edaphophyllum
  • †Edaphophyllum laciniatum – tentative report
• †Edmondia
• †Edrioaster
  • †Edrioaster bigsbyi
  • †Edrioaster priscus
• †Emmonsia
  • †Emmonsia amplissima
  • †Emmonsia arbuscula
  • †Emmonsia bacula
  • †Emmonsia convexa
  • †Emmonsia emmonsi
  • †Emmonsia epidermata
  • †Emmonsia epidermi
  • †Emmonsia eximia
  • †Emmonsia radiciformis
  • †Emmonsia ramosa
  • †Emmonsia tuberosa

• 

  Fossilized shells and restored appearances of the Middle-Late Ordovician nautiloid cephalopod Endoceras

  †Endoceras
  • †Endoceras proteiformis
• †Endothyra
  • †Endothyra baileyi
• †Endothyranella
  • †Endothyranella inflata
  • †Endothyranella kentuckyensis
• †Enoploura
  • †Enoploura punctata – or unidentified comparable form
• †Entelophyllum
  • †Entelophyllum eruciforme
  • †Entelophyllum rugosum
  • †Entelophyllum strictum
• Eocaudina
  • †Eocaudina gutschicki
  • †Eocaudina mccormacki
• †Eochonetes
  • †Eochonetes clarksvillensis
• †Eoleperditia
  • †Eoleperditia catheysensis – or unidentified comparable form
  • †Eoleperditia fabulites
• †Eolissochonetes
  • †Eolissochonetes morsei
• †Eopteria
  • †Eopteria conocardiformis
• †Eospirifer
• †Eotomaria
• †Ephippioceras
  • †Ephippioceras ferratum

• 

  A living Equisetum, or horsetail

  †Equisetum
  • †Equisetum arvense
• †Eratacrinus
  • †Eratacrinus coxanus
• †Eremopteris
  • †Eremopteris gracilis
• †Eretmocrinus
  • †Eretmocrinus cloelia
  • †Eretmocrinus magnificus
  • †Eretmocrinus ramulosus
  • †Eretmocrinus yandelli
• †Eridophyllum
  • †Eridophyllum archiaci
  • †Eridophyllum coagulatum
  • †Eridophyllum seriale
  • †Eridophyllum tumidulum
• †Eridopora
• †Eridorthis
  • †Eridorthis nicklesi
• †Eridotrypa
  • †Eridotrypa briareus – or unidentified comparable form
  • †Eridotrypa mutabilis
• †Escharopora
  • †Escharopora falciformis
  • †Escharopora hilli
  • †Escharopora nodulosa – or unidentified comparable form
• †Etheridgella
  • †Etheridgella biconvexa – type locality for species
• †Eucladocrinus
  • †Eucladocrinus millebrachiatus
• †Euconospira
  • †Euconospira conula
• †Eumetria
  • †Eumetria marcyi
  • †Eumetria vera
  • †Eumetria verneuiliana
  • †Eumetria verneuliana
• †Eunema
  • †Eunema centralis
  • †Eunema helicteres
• †Eunicites
• †Eupachycrinus
  • †Eupachycrinus germanus
  • †Eupachycrinus spartarius
• †Euphemites
  • †Euphemites randolphensis
• †Euryocrinus
  • †Euryocrinus tennesseensis

F

• †Favistella
  • †Favistella alveolata
• †Favistina
  • †Favistina stellata

• 

  Fossil of the Late Ordovician-Permian tabulate coral Favosites

  †Favosites
  • †Favosites arbor
  • †Favosites biloculi
  • †Favosites clausus
  • †Favosites delandi
  • †Favosites densitabulatus
  • †Favosites discoideus
  • †Favosites discus
  • †Favosites divergens
  • †Favosites favosus
  • †Favosites hamiltoniae
  • †Favosites hisingeri
  • †Favosites niagarensis
  • †Favosites placenta
  • †Favosites proximatus
  • †Favosites quercus
  • †Favosites rotundituba
  • †Favosites turbinatus
• †Fenestella
  • †Fenestella multispinosa
  • †Fenestella rudis
  • †Fenestella serratula
• †Fimbrispirifer
  • †Fimbrispirifer venustus
• †Fistulipora
  • †Fistulipora incrustans
  • †Fistulipora perdensa
  • †Fistulipora spergenensis

• 

  Front (left) and right side (right) views of an enrolled fossil of the Middle Ordovician-Silurian trilobite Flexicalymene

  †Flexicalymene
  • †Flexicalymene granulosa
  • †Flexicalymene griphus
  • †Flexicalymene meeki
• †Florinites
  • †Florinites mediapudens
• †Foerstephyllum
  • †Foerstephyllum vacuum
• †Foerstia
  • †Foerstia ohioensis
• †Follotites
  • †Follotites bighillensis – type locality for species

• 

  Fossilized calyx of the Devonian-Carboniferous crinoid ("sea lily") Forbesiocrinus

  †Forbesiocrinus
  • †Forbesiocrinus multibrachiatus
  • †Forbesiocrinus wortheni
  • †Forbesiocrinus wortheri
• †Furcitella
  • †Furcitella scofieldi – or unidentified comparable form
• †Fusispira
  • †Fusispira sulcata

G

• †Galtiera
  • †Galtiera bostonensis
• †Gastrioceras
  • †Gastrioceras magoffinense – type locality for species
• †Gaulocrinus
  • †Gaulocrinus bordeni
  • †Gaulocrinus symmetros – type locality for species
  • †Gaulocrinus trantscholdi
  • †Gaulocrinus veryi
• †Geniculograptus
  • †Geniculograptus typicalis

• 

  Fossilized calyx and partial stem of the Devonian-Carboniferous crinoid ("sea lily") Gilbertsocrinus

  †Gilbertsocrinus
  • †Gilbertsocrinus tuberculosus – tentative report
  • †Gilbertsocrinus tuberosus
  • †Gilbertsocrinus typus – tentative report
• †Girtyella
  • †Girtyella brevilobata
  • †Girtyella turgida
• †Glabrocingulum
  • †Glabrocingulum ellenae – type locality for species
• †Globozyga
  • †Globozyga littonana
• †Globulocystites
• †Glossina
  • †Glossina nebraskensis

• 

  Assemblage of fossils of the Middle Ordovician-Silurian crinoid ("sea lily") Glyptocrinus

  †Glyptocrinus
  • †Glyptocrinus nodosus
• †Glyptopleura
  • †Glyptopleura parvacostata
  • †Glyptopleura perbella
• †Glyptopora
  • †Glyptopora sagenella
• †Glyptorthis
  • †Glyptorthis insculpta
• †Gnathodus
  • †Gnathodus bulbosus
  • †Gnathodus pseudosemiglaber
  • †Gnathodus semiglaber
  • †Gnathodus texanus

• 

  Fossilized shell of the Late Devonian-Late Triassic ammonoid cephalopod Goniatites

  †Goniatites
• †Goniocyclus
• †Gorbyoceras
  • †Gorbyoceras tetreauense – or unidentified comparable form
• †Gordonaster
  • †Gordonaster brassfieldensis
• †Gosseletina
  • †Gosseletina johnsoni
  • †Gosseletina subglobosa
• †Grammysia – tentative report
• †Granasporites
  • †Granasporites medius
• †Granatocrinus
  • †Granatocrinus granulatus
• †Granulatisporites
  • †Granulatisporites granularis
  • †Granulatisporites granulatus
  • †Granulatisporites pallidus
  • †Granulatisporites verrucosus
• †Graptodictya
• †Gravicalymene
  • †Gravicalymene hagani
• †Grewingikia
  • †Grewingikia rustica

• 

  Multiple views of a fossil of the Ordovician horn coral Grewingkia

  †Grewingkia
  • †Grewingkia rusticum
• †Grumosisporites
  • †Grumosisporites varioreticulatus
• †Gyronema
  • †Gyronema pulchellum

H

• †Hadroblastus
• †Hallia
  • †Hallia strigata – tentative report

• 

  Fossil of the Ordovician bryozoan ("moss animal") Hallopora

  

  Close-up photograph of a fossil of the Ordovician bryozoan ("moss animal") Hallopora

  †Hallopora
  • †Hallopora multitabulata
  • †Hallopora onealli
• †Halysiocrinus
  • †Halysiocrinus cumberlandensis
  • †Halysiocrinus dactylus
  • †Halysiocrinus tunicatus

• 

  Fossil of the Ordovician-Silurian tabulate coral Halysites

  †Halysites
  • †Halysites louisvillensis – type locality for species
  • †Halysites meandrinus – tentative report
  • †Halysites nitidus
• †Haplistion
  • †Haplistion armstrongi
• †Hapsiphyllum
  • †Hapsiphyllum cassedayi
  • †Hapsiphyllum cassedeyi
• †Hebertella
  • †Hebertella alveolata
  • †Hebertella frankfortensis
  • †Hebertella occidentalis
  • †Hebertella parkensis
  • †Hebertella parksensis
  • †Hebertella sinuata
• †Helicelasma
  • †Helicelasma rusticum
• †Helicotoma
  • †Helicotoma planulatoides – type locality for species
• †Heliolites
  • †Heliolites megastoma
  • †Heliolites romingeri
  • †Heliolites spongiosus
  • †Heliolites spongodes
  • †Heliolites subtubulatus

• 

  Fossil of the Middle Devonian horn coral Heliophyllum

  †Heliophyllum
  • †Heliophyllum alternatum
  • †Heliophyllum ethelanum
  • †Heliophyllum gurleyi
  • †Heliophyllum halli
  • †Heliophyllum infundibulum
  • †Heliophyllum insigne
  • †Heliophyllum tenuiseptatum
• †Helminthochiton
  • †Helminthochiton blacki
• †Hemiphragma
  • †Hemiphragma tenuimurale – or unidentified comparable form
• †Hemitrypa
• †Hesperorthis
  • †Hesperorthis tricenaria
• †Heterophrentis
  • †Heterophrentis concava
  • †Heterophrentis foliata
  • †Heterophrentis simplex
  • †Heterophrentis subcompressa
• †Heterorthina
  • †Heterorthina macfarlani
• †Heterotrypa
  • †Heterotrypa frondosa – or unidentified comparable form
  • †Heterotrypa trentonensis
• †Hierogramma
  • †Hierogramma jeffreyi
• †Hindia
  • †Hindia parva
• †Hippocardia
• †Hiscobeccus
  • †Hiscobeccus capax
• †Histocrinus
  • †Histocrinus coreyi
  • †Histocrinus stellatus – tentative report
• †Hoareicardia
  • †Hoareicardia cunea
• †Holcocrinus
  • †Holcocrinus nodobrachiatus
  • †Holcocrinus spinobrachiatus

• 

  Fossilized shells of the Ordovician-Carboniferous sea snail Holopea

  †Holopea
  • †Holopea insignis
  • †Holopea parvula – or unidentified comparable form
• †Holtedahlina
  • †Holtedahlina sulcata
• †Homaloneura – type locality for genus
  • †Homaloneura redbirdi – type locality for species
• †Homotelus
• †Homotrypa
  • †Homotrypa callosa
  • †Homotrypa similis
• †Hormotoma
  • †Hormotoma gracilis
• †Hudsonospongia
• †Hustedia
  • †Hustedia miseri – or unidentified comparable form
  • †Hustedia mormoni – or unidentified comparable form
• †Hybocrinus
  • †Hybocrinus tumidus
• †Hybocystites
  • †Hybocystites problematicus
• †Hylodecrinus
  • †Hylodecrinus asper
  • †Hylodecrinus bonoensis
  • †Hylodecrinus briareus – tentative report
  • †Hylodecrinus sculptus

Fossilized shells of the Cambrian-Permian brachiopod relative Hyolitha

†Hyolithes

• • †Hyolithes parviuscula
• †Hypergonia
  • †Hypergonia marvinwelleri
• †Hypselocrinus
  • †Hypselocrinus campanulus
  • †Hypselocrinus hoveyi

I

• †Ianthinopsis
  • †Ianthinopsis medialis
• †Idiognathoides
  • †Idiognathoides ouachitensis
  • †Idiognathoides sinuatus
  • †Idiognathoides tuberculatus
• †Imitoceras

• 

  Fossil of the Ordovician crinoid ("sea lily") Iocrinus

  †Iocrinus
• †Ischyrodonta
  • †Ischyrodonta elongata – tentative report
  • †Ischyrodonta modioliformis
• †Isochilina
  • †Isochilina ampla – or unidentified comparable form
• †Isorophus
  • †Isorophus cincinnatiensis
• †Isorthoceras
  • †Isorthoceras albersi – type locality for species

• 

  Fossil of the Middle-Late Ordovician giant trilobite Isotelus.

  †Isotelus
  • †Isotelus gigas
  • †Isotelus maximus

J

• †Jonesella
  • †Jonesella crepidiformis
  • †Jonesella obscura – or unidentified related form

K

• †Kalymma
  • †Kalymma auriculata
  • †Kalymma grandis
  • †Kalymma hippocrepis
  • †Kalymma lirata
  • †Kalymma minuta
  • †Kalymma resinosa
• †Kaskia
  • †Kaskia chesterensis
• †Kazakhstania
  • †Kazakhstania colubrella
  • †Kazakhstania mangeri
• †Ketophyllum
  • †Ketophyllum intertrium
• †Kinkaidia – type locality for genus
  • †Kinkaidia cancellata – type locality for species
• †Kirkbya
• †Kodonophyllum
  • †Kodonophyllum vadum
• †Krausella

L

• †Labechia
  • †Labechia huronensis
• †Laccoprimitia
  • †Laccoprimitia centralis
• †Lambeophyllum – tentative report
• †Lamprophyllum
  • †Lamprophyllum niagarense
• †Lanecrinus
  • †Lanecrinus depressus
  • †Lanecrinus repertus
• †Lanthanaster
  • †Lanthanaster intermedius
• †Laphamoceras
  • †Laphamoceras scofieldi – or unidentified comparable form
• †Lecocrinus
  • †Lecocrinus springeri
• †Lekocrinus
  • †Lekocrinus planibrachiatus
• †Leperditella
  • †Leperditella glabra
• †Leperditia
  • †Leperditia caecigena
• †Lepidocoleus

• 

  Restoration of the Carboniferous-Late Triassic club moss relative Lepidodendron. Eli Heimans (1911).

  †Lepidodendron
  • †Lepidodendron aculeatum – or unidentified comparable form
  • †Lepidodendron baylense
  • †Lepidodendron boylensis
  • †Lepidodendron noralbaniense
  • †Lepidodendron volkmannianum
• †Lepidophylloides
  • †Lepidophylloides longifolium
• †Lepidostrobophyllum
  • †Lepidostrobophyllum lanceolatum
• †Lepidostrobus
  • †Lepidostrobus fisheri
  • †Lepidostrobus kentuckiensis
  • †Lepidostrobus ornatus – tentative report
  • †Lepidostrobus shopfii – type locality for species
• †Leptaena
  • †Leptaena gibbosa
  • †Leptaena kentuckiana – type locality for species
  • †Leptaena richmondensis
• †Levizygopleura
  • †Levizygopleura inornata

• 

  Illustration of a fossilized shell of the Cambrian-Late Ordovician brachiopod Lingulella

  †Lingulella
• †Linoproductus
  • †Linoproductus cora
• †Liospira
  • †Liospira decipens
  • †Liospira micula
  • †Liospira progne
  • †Liospira vitruvia
• †Liroceras
• †Listrochiton – type locality for genus
  • †Listrochiton weiri – type locality for species
• Lithophaga – tentative report
• †Litostrobus
  • †Litostrobus iowensis – or unidentified comparable form
• †Lophophyllidium
  • †Lophophyllidium proliferum
• †Lophospira
  • †Lophospira abnormis
  • †Lophospira decursa – or unidentified comparable form
  • †Lophospira milleri
  • †Lophospira obliqua
  • †Lophospira perangulata
  • †Lophospira type locality for species A – informal
• †Lophotriletes
  • †Lophotriletes gibbosus
• †Loxobucania
  • †Loxobucania lindsleyi – type locality for species
  • †Loxobucania nashvillensis
  • †Loxobucania singularis – type locality for species
• †Loxonema
  • †Loxonema nitida
• †Loxoplocus
• †Lycopogenia
  • †Lycopogenia callicyrta
• †Lycospora
  • †Lycospora granulata
  • †Lycospora micropapillata
  • †Lycospora pellucida
  • †Lycospora pusilla
  • †Lycospora rotunda
  • †Lycospora subjuga
• †Lyrodesma
  • †Lyrodesma acuminatum – or unidentified comparable form
  • †Lyrodesma inornatum – tentative report

M

• †Maclurites
• †Macrocrinus
  • †Macrocrinus konincki
  • †Macrocrinus mundulus
  • †Macrocrinus verneuillianus
• †Macurdablastus
  • †Macurdablastus uniplicatus
• †Maelonoceras
  • †Maelonoceras praematurum – or unidentified comparable form
• †Magnuscrinus
  • †Magnuscrinus kammeri
  • †Magnuscrinus praegravis
• †Marginatia
• †Marginicinctus
• †Marginifera
• †Mariopteris
  • †Mariopteris nervosa
• †Masonoceras – type locality for genus
  • †Masonoceras kentuckiense – type locality for species
• †Maximites
  • †Maximites nassichuki – type locality for species
• †Meekopora
  • †Meekopora eximia
• †Meekospira
  • †Meekospira evansvillensis
  • †Meekospira minuta
  • †Meekospira mississippiensis
  • †Meekospira peracuta
• †Megalaspidae – tentative report
  • †Megalaspidae pygidium – informal
• †Megalomphala
  • †Megalomphala crassa
• †Meniscocrinus

• 

  Illustration (lower right, entry 15) of a fossilized shell in front and side views of the Silurian-Late Devonian brachiopod Meristella

  †Meristella
  • †Meristella nasuta
• †Meristina – tentative report
• †Meristoschisma
  • †Meristoschisma hudsoni
• †Merocanites
• †Merocrinus
• †Mesocyridira
  • †Mesocyridira flagrocosta
  • †Mesocyridira washingtonensis
• †Mesopalaeaster
  • †Mesopalaeaster finei
• †Mesopilocrinus – tentative report
  • †Mesopilocrinus romingeri
• †Mesotrypa
• †Mespilocrinus
  • †Mespilocrinus kentuckyensis – type locality for species
  • †Mespilocrinus myllos
  • †Mespilocrinus romingeri
• †Metablastus
  • †Metablastus bipyramidalis
  • †Metablastus wortheni
• †Metacromyocrinus
  • †Metacromyocrinus oklahomenisis
• †Metichthyocrinus
  • †Metichthyocrinus clarkensis
  • †Metichthyocrinus tiaraeformis
• †Michelinia
• †Michelinoceras
• †Micnoceras – or unidentified comparable form
• †Microceras – tentative report
• †Micromphalus – type locality for genus
  • †Micromphalus turris – type locality for species
• †Micropileus
  • †Micropileus variabilis
• †Microzygia
  • †Microzygia lacunosa
• †Milleratia
  • †Milleratia shideleri – or unidentified related form
• †Mimella
• †Mitrospermum
  • †Mitrospermum compressum
• †Modiolodon
  • †Modiolodon oviformis
• †Modiolopsis
  • †Modiolopsis modiolaris
• †Monomuchites
  • †Monomuchites annularis – type locality for species
  • †Monomuchites costalis – or unidentified comparable form
  • †Monomuchites obliquum – type locality for species
• †Monticulipora
• †Mourlonia
• †Muensteroceras
  • †Muensteroceras oweni
• †Murchisonia
• †Murinella – tentative report
• †Murrayoceras
  • †Murrayoceras murrayi – or unidentified comparable form

N

• †Nannillaneus
• †Neoicoceras
  • †Neoicoceras elkhornense – type locality for species

• 

  Fossilized shell of the Carboniferous-Permian brachiopod Neospirifer

  †Neospirifer
  • †Neospirifer cameratus
• †Neozaphrentis
• †Neuropteris
  • †Neuropteris gigantea
  • †Neuropteris heterophylla
  • †Neuropteris tenuifolia – or unidentified comparable form
• †Nipterocrinus
  • †Nipterocrinus monroensis
• †Nucleospira – tentative report
• Nuculana
  • †Nuculana belliostriata
• †Nucularca
  • †Nucularca cingulata
  • †Nucularca pectunculoides – or unidentified related form
• †Nuculites
  • †Nuculites fabula
• †Nuculopsis
  • †Nuculopsis girtyi
  • †Nuculopsis subrotunda
• †Nyctopora – tentative report

O

• †Octonaria
  • †Octonaria bicava
• †Odontophyllum
  • †Odontophyllum convergens
  • †Odontophyllum patellatum
  • †Odontophyllum tornatum
• †Oepikina
  • †Oepikina minnesotensis
• †Oliganisus
• †Oncoceras
  • †Oncoceras major – type locality for species
  • †Oncoceras multicameratum
• †Onniella

• 

  Fossil of the Carboniferous crinoid ("sea lily") Onychocrinus

  †Onychocrinus
  • †Onychocrinus grandis – type locality for species
  • †Onychocrinus pulaskiensis
• †Orbiculoidea
  • †Orbiculoidea convexa
  • †Orbiculoidea manhattensis
• †Orbitremites
  • †Orbitremites coralridgensis – type locality for species
  • †Orbitremites kentuckyensis – type locality for species
  • †Orbitremites oppelti
• †Ordogeisonoceras
  • †Ordogeisonoceras amplicameratum – type locality for species
• †Ormoceras
  • †Ormoceras ferecentricum – type locality for species
• †Orthis
  • †Orthis testudinaria
• †Orthoceras
• †Orthodesma
• †Orthonybyoceras
• †Orthonychia
  • †Orthonychia chesterense
• †Orthorhynchula
  • †Orthorhynchula linneyi
  • †Orthorhynchula sublinneyi
• †Orthotetes
• †Ovatia

P

• †Pachydictya
• †Pachyglossella
• †Pachylocrinus
  • †Pachylocrinus aequalis
• †Palaeacis
  • †Palaeacis cuniformis
• †Palaeocapulus
  • †Palaeocapulus acutirostre
• †Palaeocaudina
  • †Palaeocaudina kansasensis
• †Palaeoconcha
  • †Palaeoconcha obliqua
• †Palaeocrinus
  • †Palaeocrinus avondalensis
  • †Palaeocrinus planobasalis
• †Palaeoneila
• †Palaeoneilo
  • †Palaeoneilo socialis
• †Palaeopteria
  • †Palaeopteria parvula – or unidentified related form
• †Palaeostylus – tentative report
• †Palaeozygopleura
  • †Palaeozygopleura delphicola
• †Paleofavosites
  • †Paleofavosites prolificus
• †Paracyrtolites
  • †Paracyrtolites parvus – type locality for species
  • †Paracyrtolites subplanus
• †Paradichocrinus
  • †Paradichocrinus liratus
  • †Paradichocrinus planus
  • †Paradichocrinus polydactylus
  • †Paradichocrinus ramus
  • †Paradichocrinus sculptus
• †Paragassizocrinus
  • †Paragassizocrinus disculus – or unidentified comparable form
  • †Paragassizocrinus kendrickensis
  • †Paragassizocrinus turris – or unidentified comparable form
• †Paraliospira – tentative report
  • †Paraliospira mundula – type locality for species
• †Paraparchites
  • †Paraparchites subcircularis
• †Parascytalocrinus
  • †Parascytalocrinus hamiltonensis
  • †Parascytalocrinus pentagonus
• †Parisocrinus – tentative report
• †Parvohallopora
  • †Parvohallopora onealli
  • †Parvohallopora ramosa
• †Patellilabia
  • †Patellilabia chesterensis
• †Patellostium
• †Pattersonia
  • †Pattersonia aurita
  • †Pattersonia tuberosa
• †Paupospira
  • †Paupospira bowdeni
  • †Paupospira burginensis
  • †Paupospira oweni
  • †Paupospira sumnerensis
  • †Paupospira tenuistriata
  • †Paupospira tropidophora
• †Pecopteris
  • †Pecopteris plumosa – or unidentified comparable form
• †Pelecocrinus
  • †Pelecocrinus type locality for species – informal
• †Pellecrinus
  • †Pellecrinus obuncus
• †Pentagonia
  • †Pentagonia biplicata
• †Pentamerus

• 

  Fossilized theca of the Carboniferous blastoid echinoderm ("sea bud") Pentremites

  †Pentremites
  • †Pentremites abruptus
  • †Pentremites clavatus
  • †Pentremites conoideus
  • †Pentremites elegans
  • †Pentremites girtyi
  • †Pentremites godoni
  • †Pentremites halli
  • †Pentremites okawensis
  • †Pentremites platybasis
  • †Pentremites princetonensis – or unidentified comparable form
  • †Pentremites pyramidatus
  • †Pentremites pyriformis
  • †Pentremites spicatus
  • †Pentremites springeri
  • †Pentremites symmetricus
  • †Pentremites tulipaformis
  • †Pentremites tulipiaformis
  • †Pentremites welleri
• †Perditocardinia
  • †Perditocardinia dubia
• †Periastron
  • †Periastron perforatum
  • †Periastron reticulatum
  • †Periastron reticulum
• †Pericyclus
• †Peripristis
  • †Peripristis semicircularis
• †Permophorus
• †Peronopora
  • †Peronopora decipiens – or unidentified comparable form
  • †Peronopora granulifera – or unidentified comparable form
  • †Peronopora milleri
• †Petrocrania
  • †Petrocrania scabiosa
• †Petropegia
  • †Petropegia radiata – type locality for species
  • †Petropegia spinosa – type locality for species
• †Phaneroceras
  • †Phaneroceras chesnuti – type locality for species
• †Phanocrinus
  • †Phanocrinus parvaramus
• †Phestia
  • †Phestia prolongata
• †Phillibole
• †Phillipsia
  • †Phillipsia bufo
• †Phragmolites
  • †Phragmolites bellulus – type locality for species
  • †Phragmolites compressus – type locality for species
• †Phymatophyllum
  • †Phymatophyllum nanum
• †Phytokneme
  • †Phytokneme rhodona
• †Pietzschia
  • †Pietzschia polyupsilon
• †Pionodema
  • †Pionodema rectimarginata
• †Pionomena
  • †Pionomena recens
• †Pithodea
  • †Pithodea americana
• †Pitys
  • †Pitys brownii

• 

  Fossilized shell of the Ordovician brachiopod Plaesiomys

  †Plaesiomys
  • †Plaesiomys subquadrata
  • †Plaesiomys subquatra
• †Planalvus
  • †Planalvus densa
• †Planisporites
  • †Planisporites granifer
• †Planoendothyra
  • †Planoendothyra whitesidei – or unidentified comparable form
• †Plasmopora
  • †Plasmopora elegans
  • †Plasmopora follis
• †Platyaxum
  • †Platyaxum foliatum
  • †Platyaxum frondosum
  • †Platyaxum orthosoleniskum
  • †Platyaxum undosum
• †Platyceras

• 

  Three fossilized calyces of the Devonian-Permian crinoid ("sea lily") Platycrinites

  †Platycrinites
  • †Platycrinites bonoensis
  • †Platycrinites georgii
  • †Platycrinites glyptus
  • †Platycrinites hemisphaericus
  • †Platycrinites hemisphericus – tentative report
  • †Platycrinites planus
  • †Platycrinites sculptus
  • †Platycrinites spinifer
• †Platylichas
  • †Platylichas halli

• 

  Fossilized shell of the Middle Ordovician-Silurian brachiopod Platystrophia

  †Platystrophia
  • †Platystrophia acutilirata
  • †Platystrophia amoena
  • †Platystrophia annieana
  • †Platystrophia auburnensis
  • †Platystrophia clarkesvillensis
  • †Platystrophia clarksvillensis
  • †Platystrophia colbiensis
  • †Platystrophia crassa
  • †Platystrophia cypha
  • †Platystrophia elegantula
  • †Platystrophia hopensis
  • †Platystrophia laticosta
  • †Platystrophia ponderosa
  • †Platystrophia sublaticosta
• †Plectambonites
  • †Plectambonites plicatellus
• †Plectocamara
• †Plectoceras
  • †Plectoceras carletonense – or unidentified comparable form
• †Plectorthis
  • †Plectorthis aequivalvis
  • †Plectorthis fissicosta
  • †Plectorthis plicatella
• †Plectospira

• 

  Fossil of the Silurian-Carboniferous tabulate coral Pleurodictyum

  †Pleurodictyum
  • †Pleurodictyum cylindricum
  • †Pleurodictyum insigne
  • †Pleurodictyum louisvillensis
  • †Pleurodictyum maximum
  • †Pleurodictyum planum
  • †Pleurodictyum wardi
• Pleurotomaria
• †Plicodendrocrinus
  • †Plicodendrocrinus casei
• †Plicorachis
  • †Plicorachis danvillensis
• †Pojetaconcha
  • †Pojetaconcha cressmani
• †Pojetoceras – type locality for genus
  • †Pojetoceras floweri – type locality for species
• †Polaricyclus
  • †Polaricyclus ballardensis
  • †Polaricyclus bordenensis – type locality for species
  • †Polaricyclus conkini – type locality for species
• †Polygnathus
  • †Polygnathus communis
• †Polygrammoceras
• †Polypora
  • †Polypora simulatrix
• †Portlockiella – type locality for genus
  • †Portlockiella kentuckyensis – type locality for species
• †Poteriocrinites
  • †Poteriocrinites horowitzi
• †Prasopora
  • †Prasopora falesi
  • †Prasopora hospitalis
  • †Prasopora simulatrix
• †Primaspis
• †Prismopora
  • †Prismopora serrulata
• †Productus
  • †Productus cestriensis

• 

  Restoration of the Silurian trilobite Proetus

  †Proetus
• †Prolecanites
  • †Prolecanites lyoni
• †Propora
  • †Propora eminula
  • †Propora glabra
  • †Propora papillata
  • †Propora puella
• †Protaraea
  • †Protaraea richmondensis
• †Proteoceras
  • †Proteoceras tyronensis – type locality for species
• †Protocyathactis
  • †Protocyathactis cybaeus – or unidentified comparable form
• †Protosalvinia
  • †Protosalvinia arnoldii
  • †Protosalvinia furcata
  • †Protosalvinia rarenna
  • †Protosalvinia ravenna

• 

  Restoration based on the "Schunnemunk tree" fossil of the Silurian-Late Devonian tree-like probable fungus Prototaxites

  †Prototaxites
  • †Prototaxites ortoni
• †Protozyga – tentative report
• †Pseudobigalea
  • †Pseudobigalea crista
• †Pseudoconocardium
• †Pseudolingula
• †Pseudomulceodens
  • †Pseudomulceodens cancellatus
• †Pseudopolygnathus
  • †Pseudopolygnathus multistriatus
• †Pseudorthoceras
  • †Pseudorthoceras knoxense
• †Pseudozygopleura
  • †Pseudozygopleura deloi – or unidentified comparable form
  • †Pseudozygopleura lanceolatus
  • †Pseudozygopleura macra – or unidentified comparable form
  • †Pseudozygopleura scitula
  • †Pseudozygopleura semicostata
• †Pterinea
  • †Pterinea demissa
• †Pterotheca
  • †Pterotheca angusta
  • †Pterotheca expansa
• †Pterotocrinus
  • †Pterotocrinus acutus
  • †Pterotocrinus armatus
  • †Pterotocrinus bifurcatus
  • †Pterotocrinus capitalis
  • †Pterotocrinus depressus
  • †Pterotocrinus lingulaformis
  • †Pterotocrinus spatulatus
• †Ptychocrinus
• †Punctatisporites
  • †Punctatisporites irrasus
  • †Punctatisporites minutus
• †Punctospirifer
  • †Punctospirifer transversus
• †Pustulatisporites
  • †Pustulatisporites crenatus
• †Pycnactis
  • †Pycnactis tenuiseptatus

Q

• †Quadratia
• †Quepora
  • †Quepora huronensis
  • †Quepora louisvillensis – type locality for species

R

• †Rafinesquina
  • †Rafinesquina alternata
  • †Rafinesquina ponderosa
  • †Rafinesquina trentonensis
  • †Rafinesquina winchesterensis
• †Raistrickia
  • †Raistrickia breveminens
  • †Raistrickia crocea
• †Raphistoma
• †Raphistomina
  • †Raphistomina lapicida
• †Rectifenestella
  • †Rectifenestella tenax
• †Reinschospora
  • †Reinschospora triangularis
• †Renisporites
  • †Renisporites confossus
• †Resserella
• †Reticulariina
  • †Reticulariina salemensis
  • †Reticulariina spinosa
• †Reticulatisporites
  • †Reticulatisporites muricatus
• †Retispira
  • †Retispira ornatus
• †Rhabdocyclus
  • †Rhabdocyclus scutellus
• †Rhegmaphyllum
  • †Rhegmaphyllum daytonensis
• †Rhineoderma
  • †Rhineoderma wortheni
• †Rhinidictya
• †Rhipidomella
  • †Rhipidomella dubia
• †Rhizophyllum
  • †Rhizophyllum attenuatum
  • †Rhizophyllum corniculum
• †Rhodocrinites
  • †Rhodocrinites barrisi
• †Rhombopora
  • †Rhombopora incrassata
• †Rhombotrypa
  • †Rhombotrypa quadrata
• †Rhynchopora
  • †Rhynchopora beecheri
• †Rhynchotrema
  • †Rhynchotrema dentatum
  • †Rhynchotrema increbescens
  • †Rhynchotrema kentuckiensis
• †Rhytiodentalium
  • †Rhytiodentalium kentuckyensis
• †Rhytiophora
• †Romingerella
  • †Romingerella major
• †Romingeria
  • †Romingeria cummunata
  • †Romingeria umbellifera
  • †Romingeria vannula
• Rostricellula
  • †Rostricellula minuta
• †Ruedemannia
  • †Ruedemannia lirata
• †Rugomena
  • †Rugomena vetusta
• †Rugosochonetes

S

• †Saffordophyllum
  • †Saffordophyllum floweri
• †Salpingostoma
  • †Salpingostoma kentuckyense
• †Salterospira
  • †Salterospira chesterensis
• †Sarocrinus
  • †Sarocrinus varsoviensis
• †Savagellites – tentative report
  • †Savagellites lindahli
• †Savitrisporites
  • †Savitrisporites nux
• †Scalites
  • †Scalites peracutum
• †Scenophyllum
  • †Scenophyllum coniferum – tentative report
• †Schizocrania
• †Schizodus
• †Schizophaulactis
  • †Schizophaulactis densiseptatus
• †Schlotheimophyllum
  • †Schlotheimophyllum fulcratum
  • †Schlotheimophyllum ipomaea
• †Schuchertella
  • †Schuchertella costatula
  • †Schuchertella minuta

• 

  Fossilized calyx of the Carboniferous crinoid ("sea lily") Scytalocrinus

  †Scytalocrinus
  • †Scytalocrinus decadactylus
  • †Scytalocrinus robustus
• †Seminula
  • †Seminula subtilita
• †Septimyalina
• †Setigerites
  • †Setigerites setiger
• †Sevillea
  • †Sevillea trinucleata – or unidentified related form
• †Siderella
  • †Siderella scotti
• †Similodonta
  • †Similodonta hermitagensis – or unidentified related form
• †Sinuites
  • †Sinuites cancellatus
  • †Sinuites globularis
  • †Sinuites granistriatus
  • †Sinuites obesa
  • †Sinuites pervoluta
  • †Sinuites planodorsatus – type locality for species
• †Sinuitina
• †Sinuspores
  • †Sinuspores sinuatus
• †Siphonophrentis
  • †Siphonophrentis halli
• †Soleniscus
  • †Soleniscus gracilis
  • †Soleniscus texanus

• 

  Fossils of the red alga Solenopora

  †Solenopora
• †Sowerbyella
  • †Sowerbyella curdsvillensis
  • †Sowerbyella grierensis – type locality for species
  • †Sowerbyella rugosa
• †Sowerbyites
• †Spackmanites
  • †Spackmanites habibii
• †Sphenophyllum
  • †Sphenophyllum cuneifolium

• 

  Fossilized foliage of the Late-Devonian-Cretaceous seed fern Sphenopteris

  †Sphenopteris
  • †Sphenopteris amoena
  • †Sphenopteris obtusiloba
• †Sphenosphaera
  • †Sphenosphaera bilineatus – type locality for species
  • †Sphenosphaera burginensis
  • †Sphenosphaera capax
  • †Sphenosphaera mohri
  • †Sphenosphaera recurvus
  • †Sphenosphaera rogersensis
  • †Sphenosphaera troosti
• †Sphenothallus
• †Spicuchelodes
  • †Spicuchelodes cressmani

• 

  Fossilized shell of the Late Ordovician-Late Triassic brachiopod Spirifer

  †Spirifer
  • †Spirifer bifurcatus
  • †Spirifer increbescens
  • †Spirifer keokuk
  • †Spirifer lateralis
  • †Spirifer rockymontanus
  • †Spirifer subaequalis
  • †Spirifer tenuicostatus
  • †Spirifer washingtonensis
• †Spiriferellina – tentative report
• †Spiriferina
  • †Spiriferina subelliptica
• †Sporangites
  • †Sporangites huronensis
• †Springericrinus
  • †Springericrinus magniventrus
• †Stauropteris
  • †Stauropteris biseriata
• †Stegacanthia
• †Stegocoelia
  • †Stegocoelia kentuckiensis
• †Steloxylon
  • †Steloxylon irvingense
  • †Steloxylon santaecrucis

• 

  Fossils of the Ordovician-Silurian brittle star Stenaster

  †Stenaster
  • †Stenaster obtusus – or unidentified comparable form
• †Stenomyelon
  • †Stenomyelon muratum
• †Stenopora
• †Stenoscisma
  • †Stenoscisma explanatum
• †Stephanozyga
  • †Stephanozyga nodosa
• †Stereolasma
  • †Stereolasma gallicalcar
  • †Stereolasma rectum
• †Stereopteris
  • †Stereopteris annularis
• †Stictopora
  • †Stictopora neglecta

• 

  Fossil preserved in situ of a Carboniferous tree-like club moss relative with attached Stigmaria rhizome system

  †Stigmaria
  • †Stigmaria ficoides
  • †Stigmaria wedingtonensis
• †Stigmatella
  • †Stigmatella conica – or unidentified comparable form
  • †Stigmatella multispinosa
• †Stinocrinus
  • †Stinocrinus granulosus
• Stomatopora
  • †Stomatopora arachnoidea
• †Straparollus
  • †Straparollus spergenensis
• †Streblochondria
• †Streblopteria
• †Streptelasma
  • †Streptelasma angulatum
  • †Streptelasma divaricans
  • †Streptelasma obliquum
  • †Streptelasma scoleciforme
  • †Streptelasma subvesiculare – tentative report
• †Striatopora
  • †Striatopora huronensis
• †Strobeus
  • †Strobeus paludinaeformis – or unidentified comparable form
• †Stromatocerium
  • †Stromatocerium huronense
• †Strombodes
  • †Strombodes shumardi

• 

  Fossilized shell of the Ordovician-Silurian brachiopod Strophomena

  †Strophomena
  • †Strophomena concordensis
  • †Strophomena costellata – or unidentified comparable form
  • †Strophomena maysvillensis
  • †Strophomena musculosa – or unidentified comparable form
  • †Strophomena neglecta
  • †Strophomena planoconvexa
  • †Strophomena planumbona
  • †Strophomena sinuata
  • †Strophomena sulcata
• †Strophostylus
  • †Strophostylus chesterensis
  • †Strophostylus wortheni
• †Subulites
  • †Subulites parvus – type locality for species
• †Sulcoretepora
  • †Sulcoretepora lineata
• †Synbathocrinus
  • †Synbathocrinus angularis
  • †Synbathocrinus dentatus
  • †Synbathocrinus robustus
  • †Synbathocrinus swallovi
• †Syringolites
  • †Syringolites vesiculosus

• 

  Fossil of the Devonian tabulate coral Syringopora

  †Syringopora
  • †Syringopora hisingeri
  • †Syringopora monroensis
  • †Syringopora perelegans

T

• †Tabulipora
  • †Tabulipora cestriensis
  • †Tabulipora penerudis
  • †Tabulipora ramosa
• †Talarocrinus
  • †Talarocrinus simplex
• †Tancrediopsis
  • †Tancrediopsis cuneata
• †Tarphophragma
  • †Tarphophragma multitabulata

• 

  Fossil of the Silurian-Carboniferous crinoid ("sea lily") Taxocrinus (right)

  †Taxocrinus
  • †Taxocrinus colletti
  • †Taxocrinus pustulosus
• †Technophorus
  • †Technophorus cincinnatiense
  • †Technophorus faberi
  • †Technophorus punctostriatus
• †Teichochilina – tentative report
• †Temnodiscus
  • †Temnodiscus nitidula
• †Tetracamera
  • †Tetracamera arctirostrata
  • †Tetracamera grosvenori
  • †Tetracamera mutata
  • †Tetracamera subcuneata
• †Tetradium
  • †Tetradium approximatum
  • †Tetradium cellulosum – or unidentified comparable form
• †Tetranota
  • †Tetranota obsoleta
• †Thamniscus
• †Thamnopora
  • †Thamnopora limitaris
• †Thamnoptychia
  • †Thamnoptychia alternans
  • †Thamnoptychia vermiculosa
• †Thecia
  • †Thecia minor
• †Theelia
  • †Theelia hexacneme – type locality for species
• †Thinocrinus
  • †Thinocrinus lowei
• †Thuroholia
  • †Thuroholia croneisi
  • †Thuroholia floydensis – type locality for species
  • †Thuroholia irregularis – type locality for species
  • †Thuroholia wanlessi – type locality for species
• †Toichochilina
• †Torynifer
  • †Torynifer pseudolineatus
  • †Torynifer setigera
• †Trematis
• †Trepospira
  • †Trepospira depressa
  • †Trepospira illinoisensis

• 

  Fossilized shell of the Ordovician nautiloid cephalopod Treptoceras

  †Treptoceras
  • †Treptoceras cincinnatiensis
  • †Treptoceras duseri
  • †Treptoceras transversum
• †Triarthrus
  • †Triarthrus eatoni
• †Triboloporus
  • †Triboloporus cryptoplicatus
• †Triendoceras – tentative report
  • †Triendoceras davisi – type locality for species
• †Trigonocarpus
• †Trigonodictya
  • †Trigonodictya acuta
• †Trocholites
  • †Trocholites faberi
• †Trochonema
  • †Trochonema canadensis
  • †Trochonema subcrassum
• †Trochonemella
  • †Trochonemella notablis
• †Trochophyllum
• †Tropidodiscus
• †Tryplasma
  • †Tryplasma cylindrica
  • †Tryplasma mitella
  • †Tryplasma prava
  • †Tryplasma radicula

U

• †Ulodendron
  • †Ulodendron majus
• †Ulrichia
  • †Ulrichia nodosa

• 

  Fossilized calyx ad partial stem of the Carboniferous crinoid ("sea lily") Ulrichicrinus

  †Ulrichicrinus
  • †Ulrichicrinus agnatus
• †Ulrichocystis
  • †Ulrichocystis eximia
• †Undulabucania
  • †Undulabucania punctifrons
• †Uperocrinus
  • †Uperocrinus acuminatus – type locality for species
  • †Uperocrinus nashvillae
  • †Uperocrinus pyriformis
  • †Uperocrinus robustus

V

• †Vaginoceras
• †Vallatotheca
  • †Vallatotheca unguiformis
• †Vanuxemia
  • †Vanuxemia dixonensis – or unidentified related form
  • †Vanuxemia gibbosa
  • †Vanuxemia nana – or unidentified comparable form
  • †Vanuxemia sardesoni – or unidentified related form
• †Verrucosisporites
  • †Verrucosisporites microtuberosus
• †Vestispora
  • †Vestispora costata
• †Volsellina
  • †Volsellina subelliptica
• †Vorticina
  • †Vorticina anneae – type locality for species

W

• †Waagenella
  • †Waagenella claxtonensis
• †Wachsmuthicrinus
  • †Wachsmuthicrinus spinosulus
  • †Wachsmuthicrinus spinulosus
• †Warthinia
  • †Warthinia nodosa
• †Weissistachys
  • †Weissistachys kentuckiensis
• †Wellergyi – type locality for genus
  • †Wellergyi chesterensis
• †Whiteavesia
• †Wilsonites
  • †Wilsonites circularis
  • †Wilsonites vesicatus
• †Winchelloceras
  • †Winchelloceras allei
  • †Winchelloceras knappi – type locality for species
• †Worthenia
  • †Worthenia tabulata
• †Worthenocrinus
  • †Worthenocrinus hardinensis
• †Worthenopora

X

• †Xenocrinus
• †Xyeleblastus
  • †Xyeleblastus magnificus

Z

• †Zadelsdorfia – tentative report
• †Zaphrenthis
  • †Zaphrenthis amplexiformis – tentative report
• †Zygospira
  • †Zygospira cincinnatiensis
  • †Zygospira kentuckyensis
  • †Zygospira lebanonensis
  • †Zygospira modesta

References

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.