Detroit River Group

Detroit River Group
Stratigraphic range: Devonian
Lucas Dolomite, upper Detroit River Group, Middle Devonian (quarry near Junction, Ohio)
TypeGroup
Sub-unitsLucas Dolomite, Formosa Reef Limestone
UnderliesDundee Limestone and Traverse Formation
OverliesHolland Quarry Shale and Wabash Formation
Location
RegionIndiana, Michigan and Ohio
CountryUnited States

The Detroit River Group is a geologic group in Michigan and Ohio. It preserves fossils dating back to the Devonian period.

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