Potosi Dolomite

The Potosi Formation is a geologic formation in Missouri, Illinois and Indiana. It preserves fossils dating back to the Cambrian period.

Potosi Formation
Stratigraphic range: Cambrian
Fossil from the Potosi Dolomite
Type	Formation
Underlies	Eminence Dolomite and Oneota Dolomite
Overlies	Davis Formation,[1] Derby-Doerun Dolomite,[2] and Franconia Formation
Location
Coordinates	38.091733°N 90.685176°W / 38.091733; -90.685176
Region	Illinois, Indiana, Missouri
Country	United States

Paleofauna

Monoplacophora

• Gayneoconus

G. echolsi^[3]

See also

• List of fossiliferous stratigraphic units in Missouri
• Paleontology in Missouri

References

1. General Stratigraphic Column for Paleozoic Rocks in Indiana
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 229
3. Stinchcomb, Bruce; Angeli, Nicholas (2002). "New Cambrian and Lower Ordovician monoplacophorans form the Ozark Uplift, Missouri". Journal of Paleontology. 76 (6): 965–974. Bibcode:2002JPal...76..965S. doi:10.1017/S0022336000057802.

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.