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Mifflin Formation

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Mifflin Formation
Stratigraphic range: Ordovician
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

The Mifflin Formation is a fossil bearing geologic formation in Illinois dating to the Ordovician period.

See also

References


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