Theodosia Formation
The Theodosia Formation is a geologic formation in Missouri. It preserves fossils dating back to the Ordovician period.
| Theodosia Formation Stratigraphic range: Ordovician | |
|---|---|
| Type | Formation |
| Location | |
| Region | Arkansas, Missouri |
| Country | United States |
| Type section | |
| Named for | Theodosia, Ozark County, Missouri[1] |
| Named by | James Shelley Cullison[2] |
The Rich Fountain Formation was proposed in 1944 as the equivalent of the lower part of the Jefferson City Formation in a new Jefferson City Group. The Theodosia Formation was proposed as the equivalent of the upper Jefferson City and the lower portion of the overlying Cotter Formation.[1] This formation was also proposed for use in Arkansas by the original author of the name, but it was never used by other workers in Arkansas.
See also
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 239 and 287
- Cullison, J.S. (1944). "The stratigraphy of some Lower Ordovician formations of the Ozark uplift". University of Missouri School of Mines and Metallurgy Bulletin, Technical Series. 15 (2): 7, 11, 15, 16, 17, 21, 23, 25–32, pl. 2.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 31 July 2014. Retrieved 8 July 2014.
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