Theodosia Formation

Theodosia Formation
Stratigraphic range: Ordovician
Type Formation
Location
Region Arkansas, Missouri
Country United States
Type section
Named for Theodosia, Ozark County, Missouri[1]

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

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]

See also

References

  1. 1 2 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
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