Cotter Formation

Updated on Nov 21, 2024

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Type Formation Primary Dolostone Underlies Powell Formation		Country United States Overlies Jefferson City Formation
Other Chert, sandstone, shale Named for Cotter, Baxter County, Arkansas Regions Arkansas, Missouri, Virginia

The Cotter Formation is a geologic formation in Arkansas Missouri and in Virginia. It preserves fossils dating back to the Ordovician period.

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