The Hanna Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Torrejonian to Tiffanian stages of the Paleogene period.[1]
Hanna Formation | |
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Stratigraphic range: Selandian-Thanetian (Torrejonian-Tiffanian) ~ | |
Type | Formation |
Location | |
Coordinates | 41°48′N 107°00′W / 41.8°N 107.0°W |
Approximate paleocoordinates | 47°36′N 86°48′W / 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) |