Grand River Formation
| Grand River Formation Stratigraphic range: Pennsylvanian | |
|---|---|
| Type | Formation |
| Underlies | Ionia Formation |
| Overlies | Saginaw Formation |
| Location | |
| Region |  Michigan |
| Country |  United States |
The Grand River Formation is a geologic formation in Michigan. It preserves fossils dating back to the Pennsylvanian period.
References[]
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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 | This article about a specific stratigraphic formation in Michigan is a stub. You can help Wikipedia by . |
Categories:
- Carboniferous Michigan
- Pennsylvanian Series
- Midwestern United States geologic formation stubs
- Michigan geography stubs