Patoka Formation

The Patoka Formation is a geologic formation in Illinois. It preserves fossils dating back to the Carboniferous period.

Patoka Formation
Stratigraphic range: Pennsylvanian
Type	Formation
Unit of	McLeansboro Group
Underlies	Bond Formation
Overlies	Shelburn Formation
Location
Region	Illinois and Indiana
Country	United States

See also

• List of fossiliferous stratigraphic units in Illinois