Earth:Hanna Formation
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| Hanna Formation Stratigraphic range: Selandian-Thanetian (Torrejonian-Tiffanian) ~63–56 Ma | |
|---|---|
 Petrified wood from the Hanna Formation | |
| Type | Formation |
| Location | |
| Coordinates | [ ⚑ ] : 41°48′N 107°00′W / 41.8°N 107.0°W |
| 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 |
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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]
See also
- List of fossiliferous stratigraphic units in Wyoming
- Paleontology in Wyoming
References
- ↑ Hanna Formation at Fossilworks.org
Further reading
- C. S. Scott and R. C. Fox. 2005. Windows on the evolution of Picrodus (Plesiadapiformes: Primates): morphology and relationships of a species complex from the Paleocene of Alberta. Journal of Paleontology 79(4):635-657
- R. Secord. 1998. Paleocene mammalian biostratigraphy of the Carbon Basin, southeastern Wyoming, and age constraints on local phases of tectonism. Rocky Mountain Geology 33(1):119-154
- J. A. Lillegraven. 1994. Age of upper reaches of Hanna Formation, northern Hanna Basin, south-central Wyoming. Berliner geowissenschaftliche Abhandlungen E (Paläobiologie) 13:203-219
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