Detroit River Group

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Detroit River Group
Stratigraphic range: Devonian
Lucas Dolomite (Middle Devonian; Auglaize Quarry, near Junction, Ohio, USA) 1 (48891623066).jpg
Lucas Dolomite, upper Detroit River Group, Middle Devonian (quarry near Junction, Ohio)
Type Group
Sub-units Lucas Dolomite, Formosa Reef Limestone
Underlies Dundee Limestone and Traverse Formation
Overlies Holland Quarry Shale and Wabash Formation
Location
Region Indiana, Michigan and Ohio
Country United States

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

References

Further reading