The Powell Formation or Powell Dolomite is a geologic formation in northern Arkansas, southeast Missouri[3] and Virginia. It contains gastropod, cephalopod, and trilobite fossils dating back to the Ordovician Period.[3]
See also
- List of fossiliferous stratigraphic units in Arkansas
- List of fossiliferous stratigraphic units in Missouri
- List of fossiliferous stratigraphic units in Virginia
References
- ^ 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 230
- ^ Purdue, A.H.; Miser, H.D. (1916). "Description of the Eureka Springs and Harrison quadrangles". U.S. Geological Survey Geologic Atlas of the United States. 202: 2, 4, 5, 6, 7, 9, 16, 17, 18, 20, 21.
- ^ a b "Powell Dolomite/Formation". Archived from the original on 2014-07-14. Retrieved 2014-07-11.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.