The Arnheim Formation is a geologic formation in Ohio. It preserves fossils dating back to the Ordovician period.
Arnheim Formation | |
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Stratigraphic range: Katian[1] | |
![]() Fossil brachiopod from the Arnheim Formation in Ohio | |
Type | Formation |
Underlies | Waynesville Formation |
Overlies | Grant Lake Formation |
Lithology | |
Primary | limestone |
Other | shale |
Location | |
Region | ![]() |
Country | ![]() |