Osgood Formation

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.

Osgood Formation
Stratigraphic range: Sheinwoodian[1]
Type	Formation
Underlies	Laurel Limestone
Overlies	Brassfield Formation and Dayton Formation
Location
Country	United States
Extent	Indiana, Kentucky, Mississippi, and Ohio

See also

• Earth sciences portal
• Indiana portal
• United States portal
• Ohio portal
• Paleontology portal

• List of fossiliferous stratigraphic units in Indiana
• List of fossiliferous stratigraphic units in Kentucky
• List of fossiliferous stratigraphic units in Ohio