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Lucas Formation

From Wikipedia, the free encyclopedia

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.

Fossil content

[edit]
Cnidarians
GenusSpeciesPresence MaterialNotesImages
Siphonophrentis S. gigantea [1] A coral

References

[edit]
  1. McCall, Christian R (16 October 2018). "Exceptional new fossil of Siphonophrentis gigantea". Retrieved 25 July 2022.