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| Sylvania Sandstone | |
|---|---|
| Stratigraphic range: Middle Devonian | |
| Type | Formation |
| Unit of | Detroit River Group |
| Underlies | Amherstburg Formation |
| Overlies | Bois Blanc Formation |
| Location | |
| Region | Michigan and Ohio |
| Country | United States |
The Sylvania Sandstone is a geologic formation in Ohio and Michigan. Its type locality is Sylvania, Ohio. It preserves fossils dating back to the Devonian period.[ citation needed ]