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