Warsaw Formation
| Warsaw Formation | |
|---|---|
| Stratigraphic range: Mississippian | |
| Type | Formation |
| Underlies | Salem Formation |
| Overlies | Keokuk Limestone[1] |
| Location | |
| Region | Illinois, Iowa, Missouri |
| Country | United States |
| Type section | |
| Named for | Warsaw, Hancock County, Illinois[1] |
The Warsaw Formation is a geologic formation in Illinois, Iowa and Missouri. It preserves fossils dating back to the Mississippian subperiod. Brachiopod, bryozoan, and crinoid fossils are common, particularly the bryozoan Archimedes.[2]
See also
- List of fossiliferous stratigraphic units in Illinois
- List of fossiliferous stratigraphic units in Iowa
- List of fossiliferous stratigraphic units in Missouri
References
- ^ a b 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
- ^ "Handbook of Illinois stratigraphy | Resources | UIUC". resources.isgs.illinois.edu. Retrieved 2026-03-12.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 19 August 2022. Retrieved 22 June 2014.