Cummingsville Formation

Cummingsville Formation
Stratigraphic range: Ordovician
Cummingsville Formation in Decorah, Iowa. The Cummingsville is the brown upper unit; the Decorah Shale is below.
TypeFormation
OverliesDecorah Shale
Location
CountryUnited States
ExtentIowa and Minnesota

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

See also

References

  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.


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