Bois Blanc Formation
The Bois Blanc Formation is a geologic formation in Michigan. It preserves fossils dating back to the Devonian period.
| Bois Blanc Formation | |
|---|---|
| Stratigraphic range: Middle Devonian | |
| Type | Formation |
| Underlies | Onondaga Limestone and Sylvania Sandstone |
| Overlies | Garden Island Formation and Oriskany Sandstone |
| Location | |
| Region | Michigan and Ohio |
| Country | United States |
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