The Black River Formation is a geologic formation in Quebec, Canada and Michigan, United States. It preserves fossils dating back to the Ordovician period.
Black River Formation | |
---|---|
Stratigraphic range: Middle Ordovician | |
Type | Formation |
Underlies | Trenton Formation |
Overlies | Au Train Formation |
Location | |
Region | Quebec and Michigan |
Country | Canada and the United States |
See also
editReferences
edit- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.[dead link]