| Sumner Group | |
|---|---|
| Stratigraphic range: Lower Permian | |
| Type | Group |
| Sub-units | Stone Corral Formation, Ninnescah Shale, Wellington Formation |
| Underlies | Nippewalla Group |
| Overlies | Chase Group |
| Lithology | |
| Primary | Shale, dolomite |
| Other | Salt, anhydrite, mudstone |
| Location | |
| Region | Kansas |
| Country | United States |
| Type section | |
| Named for | Sumner County, Kansas [1] |
| Named by | F.W. Cragin [1] |
| Year defined | 1896 |
The Sumner Group is a sedimentary geologic group of Lower Permian age. It is defined in east-central Kansas and extends into Oklahoma and Nebraska as well as the Colorado subsurface where it is undivided. [2]
 | This article about a specific stratigraphic formation in Kansas is a stub. You can help Wikipedia by expanding it. |
 | This article related to the Permian period is a stub. You can help Wikipedia by expanding it. |
