Pecatonica Formation
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Pecatonica Formation | |
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Stratigraphic range: Ordovician | |
Type | Formation |
Unit of | Black River Group |
Underlies | Plattin Formation |
Overlies | Joachim Dolomite |
Lithology | |
Primary | Limestone |
Location | |
Region | Illinois, Indiana, Iowa and Wisconsin |
Country | United States |
The Pecatonica Formation is a geologic formation in Illinois. It preserves fossils dating back to the Ordovician period.
See also
[edit]References
[edit]- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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