Dunleith Formation
Stratigraphic range: Ordovician
Type	Formation
Unit of	Galena Group
Location
Region	Illinois  Iowa  Missouri  Wisconsin
Country	United States

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

See also[edit]

• List of fossiliferous stratigraphic units in Illinois

References[edit]

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 22 June 2014.