Dinosaurs and other fossils found in Pennsylvania
The Paleobiology Database records 1,735 fossil occurrences of 281 genera in Pennsylvania, United States, including 6 dinosaur genera. Every fossil site is shown on the map; colours show the main group found there. States are as recorded by the Paleobiology Database for each fossil collection.
Dots are fossil collections in the Paleobiology Database on today’s map, merged where closer than about 5 km. See them on the ancient Earth →
What dinosaurs have been found in Pennsylvania?
The Paleobiology Database records 6 dinosaur genera from Pennsylvania. Those with the most fossil records there are Eubrontes, Anomoepus.
Dinosaurs found in Pennsylvania (6 genera)
Eubrontes, Anomoepus and 4 more genera without a page here: Anchisauripus, Atreipus, Grallator, Otozoum.
Prehistoric birds (2 genera)
2 more genera recorded.
Crocodile relatives (7 genera)
7 more genera recorded.
Early tetrapods & amphibians (19 genera)
Isodectes, Eryops, Diplocaulus, Diploceraspis, Branchiosaurus, Fedexia, Ctenerpeton, Calamops, Limnopus · 10 more genera recorded.
Pre-mammals (synapsids) (1 genera)
1 more genera recorded.
Ice Age & later mammals (51 genera)
Mammut, Odocoileus, Marmota, Equus, Smilodon, Mylohyus, Sylvilagus, Arctodus, Blarina, Zapus, Castoroides, Platygonus, Erethizon, Homo, Mammuthus, Castor, Mustela, Vulpes, Tamias, Sorex, Lontra, Myotis, Thomomys, Lasiopodomys, Megalonyx, Cervalces, Paramylodon, Aenocyon · 23 more genera recorded.
Ancient fish & sharks (14 genera)
Carinacanthus, Turrisaspis · 12 more genera recorded.
Ammonites & nautiloids (6 genera)
Orthoceras · 5 more genera recorded.
Trilobites & sea scorpions (43 genera)
Eurypterus · 42 more genera recorded.
Ediacaran & Cambrian life (129 genera)
Olenellus, Salterella, Anomalocaris, Lepidocystis, Elrathia · 124 more genera recorded.
Giant insects & arthropods (3 genera)
Arthropleura · 2 more genera recorded.
Fossil occurrences: Paleobiology Database (CC0 as reported by the API; CC BY 4.0 policy), downloaded 23 October 2026. Genus pages quote Wikipedia (CC BY-SA 4.0).