Potosi Formation
Stratigraphic range: Cambrian
Fossil from the Potosi Dolomite
TypeFormation
UnderliesEminence Dolomite and Oneota Dolomite
OverliesDavis Formation,[1] Derby-Doerun Dolomite,[2] and Franconia Formation
Location
Coordinates38°05′30″N 90°41′07″W / 38.091733°N 90.685176°W / 38.091733; -90.685176
RegionIllinois, Indiana, Missouri
CountryUnited States

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

Paleofauna

Monoplacophora

G. echolsi[3]

See also

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. doi:10.1017/S0022336000057802.


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