Black River Formation
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Black River Formation | |
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Stratigraphic range: Middle Ordovician | |
Type | Formation |
Underlies | Trenton Formation |
Overlies | Au Train Formation |
Location | |
Region | Quebec and Michigan |
Country | Canada and the United States |
The Black River Formation is a geologic formation in Quebec, Canada and Michigan, United States. It preserves fossils dating back to the Ordovician period.
See also
[edit]- List of fossiliferous stratigraphic units in Quebec
- List of fossiliferous stratigraphic units in Michigan
References
[edit]- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.