Paleozoic
Selected Paleozoic taxa of Indiana
Fossilized calyx of the Carboniferous crinoid ("sea lily") Abrotocrinus - † Achistrum
- † Achistrum brevis – type locality for species
- † Achistrum ludwigi
- † Achistrum nicholsoni
- † Achistrum triassicum
- † Acidaspis
- † Acrophyllum
- † Actinocrinites
- † Actinocrinites gibsoni
- † Actinocrinites grandissimus
- † Actinocrinites lobatus – tentative report
- † Actinocrinites lowei
- † Agaricocrinus
- † Aipoceras – tentative report
Fossilized fronds of the Carboniferous-Early Cretaceous seed fern Alethopteris - Ammodiscus
- † Ammonellipsites
- † Amplexopora
- † Amplexus
- † Anchiopsis
- † Angustidontus
- † Annularia
- † Aphlebia
Fossils of the Carboniferous-Permian bryozoan Archimedes - † Archimedes communis
- † Archimedes compactus
- † Archimedes distans
- † Archimedes intermedius
- † Archimedes invaginatus
- † Archimedes lativolvis
- † Archimedes macfarlani
- † Archimedes meekanoides
- † Archimedes meekanus
- † Archimedes negligens – or unidentified comparable form
- † Archimedes proutanus
- † Archimedes swallovanus
- † Archimedes swallowvanus
- † Archimedes symmetricus
- † Archimedes terebriformis
- † Arctinurus
- † Armenoceras
- † Artisia
- † Asterotheca
Life restoration of the Early Devonian club moss relative Asteroxylon - † Athyris
- † Atrypa
- † Atrypa newsomensis
- † Atrypa parva – or unidentified comparable form
- † Atrypa reticularis
- † Atrypa reticularus
- † Aulacophyllum
- † Aulopora
- † Aviculopecten
- † Avonia – tentative report
- † Avonia
Fossilized shell of the Silurian-Early Triassic mollusc Bellerophon - † Bellerophon gibsoni – type locality for species
- † Bellerophon jeffersonensis
- † Bellerophon spergensis – type locality for species
- † Bembexia
- † Beyrichoceras
- † Bordonia
- † Bumastus
- † Bumastus armatus – or unidentified comparable form
- † Bumastus insignis
- † Bumastus ioxus
- † Bumastus niagarense – or unidentified comparable form
- † Calamites
Fossilized fronds of the Carboniferous seed fern Callipteridium - † Callixylon
- † Calymene
- † Camarotoechia
- † Camarotoechia gregaria – tentative report
- † Camarotoechia horsfordi
- † Camarotoechia mutata
- † Camarotoechia neglecta – or unidentified comparable form
- † Camarotoechia pisa
- † Camarotoechia tethys
Fossil of the Silurian eurypterid ("sea scorpion") Carcinosoma - † Caseodus
- † Caseodus eatoni – type locality for species
- † Ceramopora
- † Ceraurinus
- † Ceraurus
- † Chancelloria
- † Charactoceras
- † Cheirurus
- † Chomatodus
- † Chondrites
- † Chonetes
- † Cincinnetina
- † Cladochonus
Fossilized shell of the Middle Devonian-Permian brachiopod Cleiothyridina - † Clorinda – tentative report
- † Coenites
- † Coenites brownsportensis
- † Coenites cryptodens – or unidentified comparable form
- † Coenites laqueata – or unidentified comparable form
- † Coenites rectilineatus
- † Columnaria
- † Composita
- † Conchidium
- † Conocardium
- † Conocardium richmondense – type locality for species
Fossil of the Ordovician bryozoan Constellaria - † Coolinia
- † Cordaites
- † Cornulites
- † Coronura
- † Crania
- † Craniops
- † Crotalocrinites
Fossilized calyx and partial stem of the Silurian-Permian crinoid ("sea lily") Cyathocrinites - † Cyathocrinites glenni – or unidentified comparable form
- † Cyathocrinites multibrachiatus
- † Cyathocrinites parvibrachiatus
- † Cyathocrinites pauli
- † Cyathocrinites sanduskyensis
- † Cyathocrinites striatissimus
- † Cyathocrinites wilsoni
- † Cyclonema
- † Cyclopteris
- † Cyphaspis
- † Cypricardinia
- † Cyrtolites
- † Cyrtospirifer
- † Cystodictya
Fossil of the Late Ordovician-Middle Devonian trilobite Dalmanites - † Danaea
- † Decadocrinus
- † Dicoelosia
- † Dictyonema
- † Dimerocrinites
- † Dinicthys
- † Dizygocrinus
- † Dizygocrinus indianaensis
- † Dizygocrinus indianensis
- † Dizygocrinus venustus – or unidentified comparable form
- † Dizygocrinus whitei – or unidentified comparable form
- † Drepanopterus
Life restoration of the Late Devonian-Carboniferous Chimaera relative Edestus - † Edmondia
- † Eldredgeops
- † Elytron
- † Emmonsia
- † Encrinurus
- Eocaudina
- † Eodictyonella
- † Eospirifer
- † Eretmocrinus
- † Eretmocrinus cassedayanus – tentative report
- † Eretmocrinus magnificus
- † Erieopterus
- † Eucalyptocrinites
Fossil of the Late Ordovician-Permian tabulate coral Favosites - † Favosites arbor
- † Favosites baculus
- † Favosites biloculi
- † Favosites clelandi
- † Favosites cristatus
- † Favosites discoideus
- † Favosites favosus
- † Favosites forbesi
- † Favosites forbsei
- † Favosites goodwini
- † Favosites hisingeri
- † Favosites hispidus – or unidentified comparable form
- † Favosites impeditus
- † Favosites mundus
- † Favosites niagarensis
- † Favosites occidentalis
- † Favosites patellatus – type locality for species
- † Favosites pirum
- † Favosites placentus
- † Favosites proximatus
- † Favosites quercus
- † Favosites ramulosus
- † Favosites rotundituba
- † Favosites spinigerus
- † Favosites turbinatus
- † Fayettoceras
- † Fenestella
- † Fletcheria
- † Flexicalymene
- † Gilbertsocrinus
Life restoration of the Carboniferous shark Glikmanius - † Glyptambon
- † Glyptocrinus
- † Gomphoceras
- † Greenops
- † Grewingkia
- † Hallopora
Fossil of the Ordovician-Silurian tabulate coral Halysites - † Harpidium – tentative report
- † Heliophyllum
Fossil of the Devonian colonial rugose coral Hexagonaria , also known as a Petoskey stone - † Hexameroceras
- † Hindia
- † Holopea
- † Hyolithes
- † Icriodus
- † Illaenus
Life restoration of the Carboniferous Chimaera relative Iniopteryx - † Iocrinus
- † Isotelus
- † Kindleoceras
- † Kingstonia
- † Kionoceras
- † Kokomopterus
- † Lambeoceras
Restoration of the Carboniferous-Late Triassic club moss relative Lepidodendron . Eli Heimans (1911). - † Lepidodendron aculeatum
- † Lepidodendron dichotomum
- † Lepidodendron lanceolatum – tentative report
- † Lepidodendron obovatum
- † Lepidodendron vestitum
- † Lepidophyllum
- † Lepidostrobus
- † Lichas
- † Lingula
- † Llanoaspis – tentative report
- † Manitoulinoceras
- † Marsupiocrinus
- † Martinia
- † Melonechinus
- † Meristella
- † Meristina
- † Microplasma
- † Mucrospirifer
- † Murchisonia
- † Natica
- † Naticopsis
- † Naticopsis carleyana – type locality for species
Fossilized frond of the Carboniferous seed fern Neuropteris - † Odontopleura – tentative report
- † Oncoceras
- † Onychocrinus
- † Onychopterella
- † Oonoceras
- † Ornithoprion – type locality for genus
Restoration of the Carboniferous-Permian cartilaginous fish Orodus - † Palmatolepis
- † Paolia – type locality for genus
- † Paraspirifer
- † Pecopteris
- † Pelagiella
- † Pentagonia
- † Pentameroceras
- † Pentamerus
- † Pentremites
- † Periastron
- † Periechocrinus
Fossil of the Late Ordovician-Late Devonian trilobite Phacops - † Phillipsia
- † Phragmolites
- † Pinna
- † Pinnularia
- † Plaesiomys
- † Platyceras
- † Platycrinites
- † Platystrophia
- † Plectodonta
- † Pleurodictyum
- † Pleurorthoceras
- † Poleumita
- † Polygnathus
- † Polysacos – type locality for genus
- Priscopedatus
- † Proetus
- † Protochonetes – tentative report
- † Protosalvinia
- † Psaronius
- † Pteria
- † Pterotheca
Life restoration of the Silurian-Middle Devonian eurypterid ("sea scorpion") Pterygotus - † Quasillites – tentative report
- † Retzia
- † Rhadinichthys
- † Rhynchonella
- † Richmondoceras – type locality for genus
- † Rineceras
- † Rota
- † Samaropsis
- † Sandalodus
- † Scytalocrinus
- † Sidetes
Fossilized stump of the Carboniferous-Permian club moss relative Sigillaria - † Skenidioides
- † Sowerbyella
- † Spathognathodus
- † Sphaerexochus
- † Sphaerocodium
- † Sphenophyllum
- † Sphenopteris
- † Spirifer
- Spirorbis
- † Spyroceras
Life restorations of a male (foreground) and female (background) of the Late Devonian-Carboniferous Chimaera relative Stethacanthus - † Stigmaria
- † Stigmatella
- † Strophomena
- † Syringopora
- † Taxocrinus
- † Tentaculites
- † Tetradium
- † Thalassinoides
- † Treptoceras
- † Tricrepicephalus
- † Trimerus
- † Zittelloceras
- † Zoophycos
