Mifflin Formation
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| Mifflin Formation | |
|---|---|
| Stratigraphic range: Ordovician | |
| File:Amplexograptus maxwelli fossil graptolites (Mifflin Formation, Ordovician; Lee County, Illinois, USA) (17203906150).jpg Fossils from the Mifflin Formation (Lee County, Illinois) | |
| Type | Formation |
| Location | |
| Region | Illinois, Wisconsin, Iowa |
| Country | United States |
_(17203906150).jpg){kind=link}
The Mifflin Formation is a fossil bearing geologic formation in Illinois dating to the Ordovician period.
See also
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References
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