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Black River Formation

From Wikipedia, the free encyclopedia
Black River Formation
Stratigraphic range: Middle Ordovician
TypeFormation
UnderliesTrenton Formation
OverliesAu Train Formation
Location
RegionQuebec and Michigan
CountryCanada 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

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References

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  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.