List of fossiliferous stratigraphic units in Ohio

Group or Formation	Period	Notes
Putnam Hill Formation	Carboniferous
Vanport Formation	Carboniferous
Washingtonville Formation	Carboniferous
Zaleski Formation	Carboniferous
Ames Formation	Carboniferous
Arnheim Formation	Ordovician
Bedford Shale	Devonian
Bellevue Formation	Ordovician
Bisher Formation	Silurian
Borden Formation	Carboniferous
Brassfield Limestone	Silurian
Breathitt Formation	Carboniferous
Bull Fork Formation	Ordovician
Chagrin Shale	Devonian
Clays Ferry Formation	Ordovician
Cleveland Shale	Devonian
Columbus Limestone	Devonian
Ames Limestone	United States
Duquense Coal	Carboniferous
Glenshaw Formation	Carboniferous
Mahoning Formation	Carboniferous
Corniferous Limestone	Devonian
Corryville Formation	Ordovician
Cuyahoga Formation	Carboniferous
Lucas Formation	Devonian
Dillsboro Formation	Ordovician
Dundee Formation	Devonian
Greene Formation	Permian
Washington Formation	Permian, Carboniferous
Kope Formation	Ordovician
McMicken Formation	Ordovician
Fairview Formation	Ordovician
Freeport Formation	Carboniferous
Glenshaw Formation	Carboniferous
Grant Lake Formation	Ordovician
Greenfield Formation	Silurian
Holland Quarry Shale	Devonian
Liberty Formation	Ordovician
Lilley Formation	Silurian
Lockport Dolomite	Silurian
Logan Formation	Carboniferous
Louisville Limestone	Silurian
Lucas Dolostone	Devonian
McMillan Formation	Ordovician
Maxville Limestone	Carboniferous
Maysville Formation	Ordovician
Fairview Formation	Ordovician
Miamitown Formation	Ordovician
Mount Auburn Formation	Ordovician
Ohio Black Shale	Devonian
Olentangy Shale	Devonian
Oregonia Formation	Ordovician
Peebles Dolomite	Silurian
Plum Brook Shale	Devonian
Portersville Limestone	Carboniferous
Pottsville Formation	Carboniferous
Putnam Hill Formation	Carboniferous
Richmond Formation	Ordovician
Elkhorn Formation	Ordovician
Waynesville Formation	Ordovician
Whitewater Formation	Ordovician
Saluda Formation	Ordovician
Silica Formation	Devonian
Sunset Formation	Ordovician
Sylvania Sandstone	Devonian
Tymochtee Formation	Silurian

See also

• Paleontology in Ohio