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

References

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