Lucas Formation

Lucas Formation
Stratigraphic range: Middle Devonian
Lucas Dolomite (Middle Devonian; quarry near Junction, Ohio)
TypeFormation
Unit ofDetroit River Group
UnderliesAnderdon Limestone and Dundee Formation
OverliesAmherstburg Formation
Location
RegionMichigan and Ohio
CountryUnited States

The Lucas Formation is a geologic formation in U.S. states of Michigan and Ohio. It preserves fossils dating back to the middle Devonian period.

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