List of the prehistoric life of Pennsylvania

This list of the prehistoric life of Pennsylvania contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Pennsylvania.

Precambrian

The Paleobiology Database records no known occurrences of Precambrian fossils in Pennsylvania.

Paleozoic

Selected Paleozoic taxa of Pennsylvania

†Acidaspis
†Agnostus
†Alethopteris
†Amphiscapha
†Aphthoroblattina
†Archaeopteris
- †Archaeopteris halliana
- †Archaeopteris macilenta
†Archimylacris
†Asaphiscus
†Athyris
- †Athyris spiriferoides
†Atrypa
- †Atrypa reticularis
†Aviculopecten
- †Aviculopecten occidentalis
†Barinophyton
†Bathyuriscus
†Bellerophon
†Bembexia
†Beyrichoceratoides
†Blattoidea
†Bonneterrina
Life restoration of the Late Devonian placoderm fish Bothriolepis
†Bothriolepis
†Byronia
†Callixylon
†Camarotoechia
†Camptostroma
†Cavusgnathus
†Ceramopora
†Ceratopsis
†Chancelloria
†Chancia
†Chonetes
†Cincinnetina
- †Cincinnetina multisecta
†Cleiothyridina
†Climacograptus
Coccosteus cuspidatus restoration, shown attacking multiple Palaeospondylus'
†Coccosteus
†Coelacanthus
†Composita
- †Composita subtilita
†Conotheca
†Coosella
†Coosia
†Cordaites
†Cornulites
- †Cornulites flexuosus
†Craniops
†Crepicephalus
†Ctenerpeton – type locality for genus
†Ctenopterus
†Cyclonema
Fossilized foliage from the Carboniferous seed fern Cyclopteris
†Cyclopteris
†Cypricardinia
- †Cypricardinia indenta
†Cyrtospirifer
†Dawsonia
†Deckera
†Densignathus – type locality for genus
†Diplocaulus – or unidentified comparable form
†Diploceraspis
- †Diploceraspis burkei
†Diplograptus
Life restoration of the Permian synapsid (mammal precursor) Edaphosaurus
†Edaphosaurus
†Edmondia
†Eldredgeops
- †Eldredgeops rana
†Elita
†Elrathia
†Elrathina
†Endolobus
†Eoagnostus
†Erettopterus
†Eryops
†Esmeraldina
†Euomphalus
Life restoration of the Devonian lobe-finned fish Eusthenodon
†Eusthenodon
- E. bourdoni – type locality for species^[1]
Fossil of the Late Ordovician-Permian tabulate coral Favosites
†Favosites
- †Favosites niagarensis
†Fenestella
†Ganorhynchus
†Genevievella
†Glaukerpeton – type locality for genus
†Glyptocrinus
†Gnathodus
†Gravicalymene
†Greenops
†Hallipterus
†Hardieopterus
†Hazelia
†Helcionella
†Hexactinellid
†Hindeodus
†Holonema
†Holopea
†Holoptychius
†Holoptychus
†Hughmilleria
†Hymenocaris
Life restoration of the Late Devonian four-limbed animal precursor Hynerpeton
†Hynerpeton – type locality for genus
- †Hynerpeton bassetti – type locality for species
Life restoration of the Late Devonian lobe-finned fish Hyneria
†Hyneria – type locality for genus
- †Hyneria lindae – type locality for species
†Hyolithellus
†Hyolithes
†Hyolithid
†Indiana – tentative report
†Iocrinus
†Irvingella
†Isodectes
Fossil of the Middle-Late Ordovician giant trilobite Isotelus.
†Isotelus
- †Isotelus gigas
†Kiaeropterus
†Kingstonia
†Kladognathus
†Kootenia
†Kutorgina
†Lancastria
†Langlieria
- †L. radiatus – type locality for species
- †L. smalingi – type locality for species^[2]
†Lepidostrobus
†Leptomitus
†Lenisicaris
- Appendage of the Cambrian radiodont Lenisicaris
  †L. pennsylvanica – type locality for species
Lingula
†Lingulella
†Llanoaspidella – type locality for genus
†Llanoaspis – tentative report
†Lonchocephalus
Life restoration of the Permian snake-like amphibian Lysorophus showing speculative egg-coiling behavior
†Lysorophus
†Margaretia
†Martinia
†Megalograptus – tentative report
†Megamolgophis
†Metacoceras
†Michelinoceras
†Micromitra
†Mimagoniatites – tentative report
†Mucrospirifer
- †Mucrospirifer mucronatus
†Nanahughmilleria
†Naticopsis
Fossilized shell of the Carboniferous-Permian brachiopod Neospirifer
†Neospirifer
- †Neospirifer cameratus
†Neuropteris
†Nisusia
Nucula
†Ogygopsis
†Olenellus
†Olenoides
- †Olenoides serratus
†Orthacanthus
†Orthoceras
†Orthotheca
†Oryctocephalus
Restoration
†Osteolepis
†Oulodus
†Ozarkodina
†Paedeumias
†Pagetia
†Paladin
†Panenka
†Parahughmilleria
†Paraspirifer
†Paterina
†Pelagiella
†Pemphigaspis
†Pentremites
†Peronopsis
†Petalodus
Fossil of the Devonian trilobite Phacops rana
†Phacops
Pinna
†Platyceras
†Pleurodictyum
†Proetus
†Protobarinophyton
†Protocaris
†Protospongia – tentative report
†Pugnax
†Quasillites
†Rhinocarcinosoma
†Rhodea
†Ribeiria
†Ruedemannipterus
†Salterella
Fossilized fin of the Devonian lobe-finned fish Sauripterus
†Sauripterus
- †Sauripterus taylori
†Schaefferia (Paleozoic plant) – or unidentified comparable form
†Schizodiscus
†Sciadophyton
†Selkirkia
†Sidneyia
†Sigillaria
†Solenochilus
†Sowerbyella
†Spathognathodus
†Spirifer
†Spyroceras
†Strophomena
†Taeniocrada
†Tentaculites
Diagram of the branches of the Middle-Late Devonian vascular plant Tetraxylopteris
†Tetraxylopteris
†Titusvillia – type locality for genus
†Triarthrus
†Tricrepicephalus
†Trimerus
†Tubulella
†Tuzoia
†Urasterella
†Vinella
†Wanneria
†Wilkingia
†Worthenia
†Yochelcionella

Mesozoic

†Anchisauripus
- †Anchisauripus gwyneddensis – type locality for species
- †Anchisauripus poolei – type locality for species
- †Anchisauripus sillimani
Fossil (right) of the Early Jurassic dinosaur footprint ichnogenus Anomoepus
†Anomoepus
- †Anomoepus gracillimus
†Apatopus
†Atreipus
- †Atreipus milfordensis
†Batrachopus
- †Batrachopus gracilis
†Belodon
- †Belodon priscus
†Brachychirotherium
†Brontozoum
- †Brontozoum sillimanium
†Calamops – type locality for genus
- †Calamops paludosus – type locality for species
†Chirotherium
- †Chirotherium lulli
- †Chirotherium parvum
Fossil of the Late Triassic shark Carinacanthus
†Carinacanthus – type locality for genus
- †Carinacanthus jepseni – type locality for species
†Cionichthys
†Clepsysaurus – type locality for genus
- †Clepsysaurus pennsylvanicus – type locality for species
- †Clepsysaurus veatleianus
†Dinophyton
Fossil of the Late Triassic coelacanth Diplurus
†Diplurus
- †Diplurus longicaudatus
†Dipterus
- †Dipterus redfieldi
†Eubrontes
- †Eubrontes giganteus
†Grallator
- †Grallator cuneatus
- †Grallator tenuis
†Gwyneddichnium – type locality for genus
- †Gwyneddichnium majore – type locality for species
†Gwyneddosaurus – type locality for genus
- †Gwyneddosaurus erici – type locality for species
†Koskinonodon
- †Koskinonodon perfectus
Fossilized skeleton of the Middle Triassic amphibian Mastodonsaurus
†Mastodonsaurus
- †Mastodonsaurus durus – type locality for species
†Orthodactylus
- †Orthodactylus howelli – type locality for species
†Otozoum – tentative report
- †Otozoum minus
†Pagiophyllum
†Palaeoctonus
- †Palaeoctonus appalachianus
†Palaeosaurus
- †Palaeosaurus fraserianus – type locality for species
†Platypterna
- †Platypterna lockatong – type locality for species
†Pterodactylus
- †Pterodactylus longispinis – type locality for species
†Revueltosaurus
†Rhynchosauroides
- †Rhynchosauroides brunswickii
- †Rhynchosauroides hyperbates
Life restoration of the Late Triassic phytosaur Rutiodon
†Rutiodon
- †Rutiodon carolinensis
†Scoyenia
†Sphodrosaurus – type locality for genus
- †Sphodrosaurus pennsylvanicus – type locality for species
†Suchoprion
- †Suchoprion aulacodus
- †Suchoprion cyphodon
†Synorichthys
- †S. cf. stewarti
†Turseodus