Hailey Shales Formation

Hailey Shales Formation
Stratigraphic range: Cretaceous
Type Formation
Location
Region Wyoming
Country United States

The Hailey Shales Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Cretaceous period.

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This article is issued from Wikipedia - version of the 11/1/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.