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Cotter Formation
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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.
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See also
[edit]References
[edit]- ^ 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.
- ^ "Cotter Dolomite". Archived from the original on 2014-07-14. Retrieved 2014-07-11.
- ^ 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
- ^ McFarland, John David (2004) [1998]. "Stratigraphic summary of Arkansas" (PDF). Arkansas Geological Commission Information Circular. 36: 3–4. Archived from the original (PDF) on 2016-12-21. Retrieved 2018-01-10.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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