Alpena Limestone

Alpena Formation
Stratigraphic range: Middle Devonian
TypeFormation
Unit ofTraverse Group
Sub-unitsFour Mile Dam Member and Newton Creek Member
UnderliesThunder Bay Limestone
OverliesLong Lake Limestone
Location
RegionMichigan
CountryUnited States

The Alpena Formation is a geologic formation in Michigan. It preserves fossils dating back to the Devonian period.

References

  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.


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