Mifflin Formation
| Mifflin Formation | |
|---|---|
| Stratigraphic range: Ordovician | |
| Type | Formation |
| Location | |
| Region |  Illinois |
| Country |  United States |
The Mifflin Formation is a fossil bearing geologic formation in Illinois dating to the Ordovician period.
See also
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 22 June 2014.
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