| Ohio Shale | |
|---|---|
| Stratigraphic range: Late Devonian Frasnian ~ | |
.jpg) Black mudshale with glacial striations (Ohio Shale) | |
| Type | Formation |
| Sub-units | Cleveland Shale Chagrin Formation Huron Shale |
| Underlies | Bedford Shale, Berea Sandstone, and Cussewago Sandstone |
| Overlies | Java Formation and Olentangy Shale |
| Lithology | |
| Primary | shale |
| Location | |
| Region | Ohio |
| Country | United States |
The Ohio Shale is a geologic formation in Ohio. It preserves fossils dating back to the Devonian period.