| 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 |
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.
The Waynesville Formation is a geologic formation in Ohio and Indiana. It preserves fossils from the Late Ordovician period.
The Whitewater Formation is a geologic formation in Ohio and Indiana. It preserves fossils dating back to the Ordovician period.
The Saluda Formation is a geologic formation in Ohio and Indiana. It preserves fossils dating back to the Ordovician period.
The Tymochtee Formation is a geologic formation in Ohio. It preserves fossils dating back to the Silurian period.
The Arnheim Formation is a geologic formation in Ohio. It preserves fossils dating back to the Ordovician period.
The Liberty Formation is a geologic formation in Ohio and Indiana. It preserves fossils dating back to the Ordovician period.
The Grant Lake Formation is a geologic formation in Ohio and Kentucky. It preserves fossils dating back to the Ordovician period.
The Bellevue Formation is a geologic formation in Ohio and Kentucky. It preserves fossils dating back to the Ordovician period.
The McMillan Formation is a geologic formation in Ohio, Kentucky and Indiana. It preserves fossils dating back to the Ordovician period.
The Peebles Dolomite is a geologic formation in Ohio. It preserves fossils dating back to the Silurian period.
The Louisville Limestone is a geologic formation in Ohio. It preserves fossils dating back to the Silurian period.
The Lilley Formation is a geologic formation in Ohio. It preserves fossils dating back to the Silurian period.
The Greenfield Formation is a geologic formation in Ohio. It preserves fossils dating back to the Silurian period.
The Bisher Formation is a geologic formation in Ohio. It preserves fossils dating back to the Silurian period.
The Cincinnati Group is a geologic group in Kentucky, Ohio and Indiana. It is Upper Ordovician.
The Harrodsburg Limestone is a geologic formation, a member of the Sanders Group of Indiana Limestone, of Mississippian age. It was named for Harrodsburg in southern Monroe County, Indiana by T. C. Hopkins and C. E. Siebenthal. It is made up primarily of calcarenite and calcirudite. It also may include some beds of dolomite and shale.
The Salem Formation is a geologic formation in Illinois, Indiana, Kentucky, and Missouri. It preserves fossils dating back to the Mississippian subperiod. This formation is quarried and used as a building material, known as "Indiana limestone", also called Bedford limestone.
The Laurel Formation, also known as the Laurel Limestone or the Laurel Dolomite, is a geologic formation in Indiana and Kentucky. It preserves fossils dating back to the Silurian period.
The Louisville Formation is a geologic formation in Indiana. It preserves fossils dating back to the Silurian period.
The Lorraine Group is a geologic group in the northeastern United States and southeastern Canada.
 | This article about a specific stratigraphic formation in Indiana is a stub. You can help Wikipedia by expanding it. |
| | This article about a specific stratigraphic formation in Kentucky is a stub. You can help Wikipedia by expanding it. |
| | This article about a specific stratigraphic formation in Ohio is a stub. You can help Wikipedia by expanding it. |
