Clayton Formation
The Clayton Formation is a geologic formation in Illinois. It preserves fossils dating back to the Paleogene period.
| Clayton Formation Stratigraphic range: Paleogene | |
|---|---|
 Fossils from the Clayton Formation in Mississippi | |
| Type | Formation |
| Unit of | Midway Group |
| Underlies | Porters Creek Formation, Wilcox Group, and others |
| Overlies | Arkedelphia Formation and others |
| Lithology | |
| Primary | Limestone |
| Location | |
| Region | Central United States |
| Country |  United States |
| Extent | Illinois |
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 31 July 2014. Retrieved 22 June 2014.
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