Osgood Formation

Osgood Formation
Stratigraphic range: Sheinwoodian[1]
TypeFormation
UnderliesLaurel Limestone
OverliesBrassfield Formation and Dayton Formation
Location
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.