Groos Quarry Formation

Groos Quarry Formation
Groos Quarry Formation
Stratigraphic range: Ordovician
Type	Formation
Unit of	Trenton Group
Location
Region	Michigan
Country	United States

Last updated July 12, 2025

The Groos Quarry Formation is a geologic formation in Michigan. It preserves fossils dating back to the Ordovician period.

References

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

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Groos Quarry Formation

See also

References