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
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 22 June 2014.
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.