Hanna Formation
The Hanna Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Torrejonian to Tiffanian stages of the Paleogene period.
| Hanna Formation | |
|---|---|
| Stratigraphic range: Selandian-Thanetian (Torrejonian-Tiffanian) ~ | |
Petrified wood from the Hanna Formation | |
| Type | Formation |
| Location | |
| Coordinates | 41.8°N 107.0°W |
| Approximate paleocoordinates | 47.6°N 86.8°W |
| Region | Wyoming |
| Country | United States |
| Extent | Carbon Basin |
| Type section | |
| Named for | High Hanna Hill |
Hanna Formation (the United States) Hanna Formation (Wyoming) | |
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