Osgood Formation

Osgood Formation Stratigraphic range: Silurian
Type	Formation
Underlies	Laurel Limestone
Overlies	Brassfield Formation and Dayton Formation
Location
Country	United States
Extent	Indiana, Kentucky, 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.