title: List of fossiliferous stratigraphic units in Minnesota
text: # List of fossiliferous stratigraphic units in Minnesota
  
  This article contains a list of fossil-bearing stratigraphic units in the state of Minnesota, U.S.
  
  ## Sites
  
  | Group or Formation | Period |
  | - | - |
  | 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 |
  