List of fossiliferous stratigraphic units in Pennsylvania

This article contains a list of fossil-bearing stratigraphic units in the state of Pennsylvania, U.S.

Sites

Group or Formation	Period	Notes
Allegheny Formation	Carboniferous
Ames Formation	Carboniferous
Anthracite Formation	Carboniferous
Antietam Formation	Cambrian
Bellefonte Formation	Ordovician
Bloomsburg Formation	Silurian
Canadaway Group/Canaseraga Formation	Devonian
Canadaway Group/Cuba Formation	Devonian
Canadaway Group/Java Formation	Devonian
Canadaway Group/Machias Formation	Devonian
Canadaway Group/Rushford Formation	Devonian
Catskill Formation	Devonian
Chatham Group/Hammer Creek Formation	Triassic
Chemung Formation	Devonian
Cherry Ridge Shale	Devonian
Conemaugh Group	Carboniferous
Conemaugh Group/Conemaugh Formation	Carboniferous
Conemaugh Group/Glenshaw Formation	Carboniferous
Conewango Group	Devonian
Conewango Group/Pocono Formation	Devonian
Conewango Group/Venango Formation	Devonian
Conneaut Group/Cuba silt shale (Chadakoin)	Devonian
Connemaugh Group	Carboniferous
Connemaugh Group/Duquesne Coal	Carboniferous
Cussewago Formation	Devonian
Dunkard Group/Greene Formation	Permian
Dunkard Group/Waynesburg Formation	Permian
Gatesburg Formation	Cambrian
Genesee Group/Ithaca Formation	Devonian
Gettysburg Formation	Triassic
Glenshaw Formation	Carboniferous
Hamilton Group/Mahantango Formation	Devonian
Hamilton Group/Marcellus Shale	Devonian
Harrell Formation	Devonian
Helderberg Formation	Devonian
Jennings Formation	Devonian
Keyser Limestone	Silurian
Kinzers Formation	Cambrian
Llewellyn Formation	Carboniferous
Lock Haven Formation	Devonian
Lockatong Formation	Triassic
Pocono Formation	Devonian
Mahantango Formation	Devonian
Manlius Limestone	Devonian
Martinsburg Formation	Ordovician
Mauch Chunk Formation	Carboniferous
Mercer Formation	Carboniferous
Mifflintown Formation	Silurian
Monongahela Group/Pittsburgh Formation	Carboniferous
New Oxford Formation	Triassic
Newark Group/Gettysburg Formation	Triassic
Newark Group/Lockatong Formation	Triassic
Newark Group/New Oxford Formation	Triassic
Nittany Dolomite	Ordovician
Old Point Formation	Devonian
Onondaga Formation	Devonian
Oswayo Sandstone	Devonian
Passaic Formation	Triassic
Pleasant Hill Limestone	Cambrian
Pocono Formation	Carboniferous, Devonian
Pottsville Formation	Carboniferous
Reedsville Group/ Martinsburg Formation	Ordovician
Rockdale Run Formation	Ordovician
Rose Hill Formation	Silurian
Shawangunk Formation	Silurian
Sonyea Group/Delaware River Formation	Devonian
Stockton Formation	Triassic
Stonehenge Formation	Ordovician
Susquehanna Group/Chemung Formation	Devonian
Titusville Till
Tomstown Dolomite	Cambrian
Venango Formation	Devonian
Vintage Dolomite	Cambrian
Warrior Formation	Cambrian
Washington Formation	Permian

See also

• Paleontology in Pennsylvania

References

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