Edwardsville Formation |
---|
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 |
---|
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]
References
- ^ Edwardsville Formation at the Indiana Geological Survey
- ^ 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)
Chronostratigraphy of Indiana
Ph | Pz | C | ⁋ | Kasimovian | - McLeansboro Group
- Bond Formation, Mattoon Formation, Patoka Formation
|
---|
Moscovian | |
---|
Bashkirian | |
---|
|
---|
M | |
---|
|
---|
D | |
---|
S | |
---|
O | |
---|
Є | |
---|
|
---|
|
---|
pЄ | |
---|