Hartshorne Formation
The Hartshorne Formation is a geologic formation in Arkansas and Oklahoma. It preserves fossils dating back to the Carboniferous period.
| Hartshorne Formation | |
|---|---|
| Stratigraphic range: Carboniferous | |
| Type | Formation |
| Underlies | McAlester Formation |
| Overlies | Atoka Formation |
| Location | |
| Region | Arkansas, Oklahoma |
| Country | United States |
| Type section | |
| Named by | J.A. Taff |
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