| Red Eagle Formation | |
|---|---|
| Stratigraphic range: Carboniferous-Permian boundary[1] | |
| Type | Formation |
| Unit of | Council Grove Group |
| Sub-units | In Kansas and Nebraska: *Howe Limestone *Bennett Shale *Glenrock Limestone |
| Lithology | |
| Primary | Limestone |
| Other | Shale |
| Location | |
| Coordinates | 36°52′21″N 96°33′56″W / 36.87250°N 96.56556°W |
| Region | Midcontinent (Oklahoma, Kansas, Nebraska) |
| Country | United States |
| Type section | |
| Named for | Red Eagle School, southwest of Foraker, Oklahoma[2] |
| Named by | K.C. Heald |
| Year defined | 1916 |
The Red Eagle Formation (or Red Eagle Limestone) is a geologic formation ranging from Oklahoma, through Kansas, into southeast Nebraska of the United States.[2] Its members define the Carboniferous-Permian boundary in Kansas.[1]
... the Carboniferous-Permian boundary in Kansas can now be confidently defined. Based [on fossil changes, the] boundary in Kansas can be placed at the base of the Bennett Shale Member of the Red Eagle Limestone.
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