| Holland Quarry Shale | |
|---|---|
| Stratigraphic range: Devonian | |
 Eurypterids of the Devonian Holland Quarry Shale | |
| Type | Formation |
| Underlies | Detroit River Group and Sylvania Sandstone |
| Location | |
| Region |  Ohio |
| Country |  United States |
The Holland Quarry Shale is a geologic formation in Ohio. It preserves fossils dating back to the Devonian period.