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[edit]
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.