Cummingsville Formation

Cummingsville Formation
Stratigraphic range: Ordovician

Cummingsville Formation in Decorah, Iowa. The Cummingsville is the brown upper unit; the Decorah Shale is below.
Type Formation
Overlies Decorah Shale
Location
Region Iowa and Minnesota
Country United States

The Cummingsville Formation is a geologic formation in Iowa and Minnesota. It preserves fossils dating back to the Ordovician period.

See also

References


This article is issued from Wikipedia - version of the 8/1/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.