Edwardsville Formation

Edwardsville Formation
Stratigraphic range: Mississippian
TypeFormation
Unit ofBorden Group
UnderliesMuldraugh Formation and Ramp Creek Formation
OverliesSpickert Knob Formation
Location
RegionIndiana
CountryUnited States

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]

  1. ^ Edwardsville Formation at the Indiana Geological Survey
  2. ^ Crinoids from the Edwardsville Formation (Lower Mississippian) of Southern Indiana. William I. Ausich and N. Gary Lane, Journal of Paleontology, November 1982, Volume 56, Number 6, pages 1343-1361 (abstract)