Oligocene Series

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Revision as of 18:56, 3 May 2016 by Jennifer.Obrad (talk | contribs) (IlLex moved page Oliocene Epoch to Oliocene Series without leaving a redirect)

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There are currently no known geologic units of Oliocene age in Illinois.

Retrieved from "https://ilstratwiki.web.illinois.edu/index.php?title=Oligocene_Series&oldid=8413"