| Potosi Formation | |
|---|---|
| Stratigraphic range: Cambrian | |
 Fossil from the Potosi Dolomite | |
| Type | Formation |
| Underlies | Eminence Dolomite and Oneota Dolomite |
| Overlies | Davis Formation, Derby-Doerun Dolomite, and Franconia Formation |
| Location | |
| Coordinates | 38°05′30″N 90°41′07″W / 38.091733°N 90.685176°W / 38.091733; -90.685176 |
| Region | Illinois, Indiana, Missouri |
| Country | United 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
See also
References
- General Stratigraphic Column for Paleozoic Rocks in Indiana
- 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
- 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.
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