Pecatonica Formation

Pecatonica Formation
Stratigraphic range: Ordovician
Type Formation
Location
Region  Illinois
Country  United States

The Pecatonica Formation is a geologic formation in Illinois. It preserves fossils dating back to the Ordovician period.

See also

References

This article is issued from Wikipedia - version of the Tuesday, April 28, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.