Osgood Formation

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Osgood Formation
Stratigraphic range: Sheinwoodian[1]
UnderliesLaurel Limestone
OverliesBrassfield Formation and Dayton Formation
CountryUnited States
ExtentIndiana, Kentucky, Mississippi, and Ohio

The Osgood Formation, also known as the Osgood Shale is a geologic formation in Indiana, Kentucky, and Ohio. It preserves fossils dating back to the Silurian period.

See also[edit]


  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 31 July 2014. Retrieved 22 June 2014. Cite uses deprecated parameter |deadurl= (help)
  • Generalized Stratigraphic Chart for Ohio