Warsaw Formation

Warsaw Formation
Warsaw Formation
Stratigraphic range: Mississippian
	Geode from the Warsaw Formation (Warsaw, Hancock County, Illinois)
Type	Formation
Underlies	Salem Formation
Overlies	Keokuk Limestone
Location
Region	Illinois, Iowa, Missouri
Country	United States
Type section
Named for	Warsaw, Hancock County, Illinois

Last updated August 03, 2025

The Warsaw Formation is a geologic formation in Illinois, Iowa and Missouri. It preserves fossils dating back to the Mississippian subperiod.

References

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 145

Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 19 August 2022. Retrieved 22 June 2014.

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[Thompson-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 145

[1]

Warsaw Formation

See also

References