Edwardsville Formation
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The Edwardsville Formation is a geological structure in the Borden Group, of the Lower Mississippian sub system,[1] (Osagean, late Tournaisian). Crinoids fossils can be found in the formation.[2]
Quick Facts Type, Unit of ...
Edwardsville Formation | |
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Stratigraphic range: Mississippian | |
Type | Formation |
Unit of | Borden Group |
Underlies | Muldraugh Formation and Ramp Creek Formation |
Overlies | Spickert Knob Formation |
Location | |
Region | Indiana |
Country | United States |
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