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The St. Ignace Dolomite is a geologic formation in Michigan. It preserves fossils dating back to the Silurian period.
| Pointe aux Chenes Formation | |
|---|---|
| Stratigraphic range: Silurian | |
_2_(40975889854).jpg) Mackinac Breccia, Devonian (St. Ignace Dolomite; Upper Peninsula of Michigan) | |
| Type | Formation |
| Unit of | Bass Islands Group |
| Underlies | Put-in-Bay Dolomite |
| Overlies | Pointe aux Chenes Formation |
| Location | |
| Region |  Michigan |
| Country |  United States |
References edit
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.[better source needed]
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