Cotter Formation

Cotter Formation
Stratigraphic range: Ordovician
Type Formation
Underlies Powell Formation
Overlies Jefferson City Formation
Lithology
Primary Dolostone
Other Chert, sandstone, shale
Location
Region

Arkansas, Missouri, Oklahoma,

Virginia
Country United States
Type section
Named for Cotter, Baxter County, Arkansas
Named by Edward Oscar Ulrich[1]

The Cotter Formation is a geologic formation in Arkansas,[2] Missouri,[3] Oklahoma[4] and in Virginia. It preserves fossils dating back to the Ordovician period.

See also

References

  1. ↑ Purdue, A.H.; Miser, Hugh D. (1916). "Description of the Eureka Springs and Harrison quadrangles" (PDF). U.S. Geological Survey Geologic Atlas of the United States. 202: 4.
  2. ↑ Cotter Dolomite
  3. ↑ Thompson, Thomas L., 2001, Lexicon of Stratigraphic Nomenclature in Missouri, Missouri Department of Natural Resources, Division of Geology and Land Survey, Report of Investigation Number 73, p 72-3
  4. ↑ McFarland, John David (2004) [1998]. "Stratigraphic summary of Arkansas" (PDF). Arkansas Geological Commission Information Circular. 36: 3-4.
  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 31 July 2014. Retrieved 22 June 2014.
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