Paleozoic
Selected Paleozoic taxa of Kentucky
Fossilized calyx of the Carboniferous crinoid ("sea lily") Abrotocrinus - † Achatella
- † Achistrum
- † Acidaspis
- † Acrophyllum
- † Actinoceras
- † Actinocrinites
- † Agaricocrinus
Fossilized fronds of the Carboniferous-Early Cretaceous seed fern Alethopteris - † Alethopteris decurrens
- † Alethopteris lonchitica – or unidentified comparable form
- † Ammonellipsites
- † Amphiscapha
- † Amplexopora
- † Amplexus
- † Anchiopella
- † Anisophyllum
- † Annularia
- † Archaeocidaris
- † Archaeopteris
Fossils of the Carboniferous-Permian bryozoan Archimedes 
Fossilized teeth of the Devonian-Cretaceous shark Asteracanthus - † Athyris
- † Atrypa
- † Augustoceras
- † Aulopora
- † Aviculopecten
- † Aviculopecten germanus – or unidentified related form
- † Bellerophon
- † Beyrichoceras
- † Bisatoceras – tentative report
- † Bostonia
Life restoration of the Early Ordovician-Silurian trilobite Bumastus - † Calamites
- † Callixylon
- † Calyptaulax
- † Camarotoechia
- † Cameroceras
- † Cartersoceras
- † Ceratopsis
- † Ceraurus
- † Chasmatopora
- † Chonetes
Assemblage of fossilized shells of the Ordovician brachiopod Cincinnetina - † Cladochonus
- † Cleiothyridina
- † Climacograptus
- † Coenites
Fossilized shell of the Late Devonian-Permian brachiopod Composita - † Conostoma
- † Constellaria
- † Cordaites
- † Cornulites
- † Crania – tentative report
- † Craniops
- † Cyathocrinites
- † Cyclonema
- † Cydrocrinus
- † Cyphaspis
- † Cypricardinia
Restoration of the Cambrian-Middle Devonian nautiloid cephalopod Cyrtoceras - † Cyrtolites
- † Cystodictya
- † Decadocrinus
- † Declinognathodus
- † Diplograptus
- † Dizygocrinus
- † Edmondia
- † Emmonsia
- † Endoceras
- Eocaudina
- † Eospirifer
- † Equisetum
- † Eretmocrinus
Fossil of the Late Ordovician-Permian tabulate coral Favosites - † Fenestella
Front (left) and right side (right) views of an enrolled fossil of the Middle Ordovician-Silurian trilobite Flexicalymene - † Foerstia
- † Forbesiocrinus
- † Gastrioceras
- † Gilbertsocrinus
- † Glossina
- † Glyptocrinus
- † Glyptopleura
- † Gnathodus
- † Goniatites
- † Gravicalymene
Multiple views of a fossil of the Ordovician horn coral Grewingkia - † Hallia
- † Hallopora
- † Halysites
- † Heliophyllum
- † Helminthochiton
- † Hindia
- † Holopea
- † Hyolithes
- † Idiognathoides
- † Iocrinus
- † Isotelus
- † Kazakhstania
- † Krausella
- † Lepidodendron
- † Lepidodendron aculeatum – or unidentified comparable form
- † Lepidostrobus
Illustration of a fossilized shell of the Cambrian-Late Ordovician brachiopod Lingulella - † Liroceras
- Lithophaga – tentative report
- † Maelonoceras
- † Masonoceras – type locality for genus
- † Maximites
- † Meristella
- † Meristina – tentative report
- † Michelinoceras
- † Murchisonia
- † Murrayoceras
- † Neospirifer
Fronds of the Carboniferous seed fern Neuropteris - † Neuropteris gigantea
- † Neuropteris heterophylla
- † Neuropteris tenuifolia – or unidentified comparable form
- † Oncoceras
- † Onychocrinus
- † Ormoceras
- † Orthoceras
- † Pattersonia
- † Pecopteris
- † Pecopteris plumosa – or unidentified comparable form
- † Pentagonia
- † Pentamerus
- † Pentremites
- † Periastron
- † Phillipsia
- † Phragmolites
- † Pitys
- † Plaesiomys
- † Platyceras
- † Platycrinites
Fossilized shell of the Middle Ordovician-Silurian brachiopod Platystrophia - † Plectoceras
- † Pleurodictyum
- Pleurotomaria
- † Polygnathus
- † Polygrammoceras
Restoration of the Silurian trilobite Proetus - † Protosalvinia
- † Prototaxites
- † Pseudopolygnathus
- † Pterotheca
- † Quadratia
- † Scytalocrinus
- † Similodonta
- † Solenopora
- † Sowerbyella
- † Sphenophyllum
- † Sphenopteris
- † Sphenothallus
- † Spirifer
- † Spiriferina
- † Stenaster
- † Stigmaria
- † Stigmatella
Fossilized shell of the Ordovician-Silurian brachiopod Strophomena - † Strophomena concordensis
- † Strophomena costellata – or unidentified comparable form
- † Strophomena neglecta
- † Strophomena planumbona
- † Strophomena sulcata
- † Subulites
- † Syringopora
- † Taxocrinus
- † Tetradium
- † Theelia
- † Treptoceras
Restoration showing the top (left) and underside of the Late Ordovician trilobite Triarthrus - † Triendoceras – tentative report
- † Trocholites
- † Ulrichicrinus
- † Whiteavesia
- † Worthenia
- † Zadelsdorfia – tentative report
