List of fossiliferous stratigraphic units in Minnesota

Group or Formation	Period	Notes
Colerain Formation	Cretaceous
Coleraine Formation	Cretaceous
Cummingsville Formation	Ordovician
Dakota Formation	Cretaceous
Decorah	Ordovician
Decorah Shale	Ordovician
Dubuque Formation	Ordovician
Franconia Formation	Cambrian
Galena Group/Cummingsville Formation	Ordovician
Galena Group/Decorah Shale	Ordovician
Glenwood Formation	Ordovician
Greenhorn Formation	Cretaceous
Guttenberg Formation	Ordovician
Ion Formation	Ordovician
Maquoketa Group/Elgin Formation	Ordovician
Oneota Formation	Ordovician
Platteville Formation	Ordovician
Prosser Limestone	Ordovician
Shakopee Formation	Ordovician
Spechts Ferry Formation	Ordovician
Spillville Formation	Devonian
St. Peter Sandstone	Ordovician
Stewartville Formation	Ordovician
Windrow Formation	Cretaceous

See also

• Paleontology in Minnesota