_(17203906150).jpg/250px-Amplexograptus_maxwelli_fossil_graptolites_(Mifflin_Formation,_Ordovician;_Lee_County,_Illinois,_USA)_(17203906150).jpg){kind=small}
_(17203906150).jpg/2000px-Amplexograptus_maxwelli_fossil_graptolites_(Mifflin_Formation,_Ordovician;_Lee_County,_Illinois,_USA)_(17203906150).jpg)
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Mifflin Formation
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The Mifflin Formation is a fossil bearing geologic formation in Illinois dating to the Ordovician period.
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See also
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References
[edit]- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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