Hanna Formation
Stratigraphic range:Selandian-Thanetian (Torrejonian-Tiffanian) ~63–56 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Petrified wood from the Hanna Formation
Type	Formation
Location
Coordinates	41°48′N107°00′W / 41.8°N 107.0°W /41.8; -107.0
Approximate paleocoordinates	47°36′N86°48′W / 47.6°N 86.8°W /47.6; -86.8
Region	Wyoming
Country	United States
Extent	Carbon Basin
Type section
Named for	High Hanna Hill
Hanna Formation (the United States) Show map of the United States Hanna Formation (Wyoming) Show map of Wyoming

TheHanna Formation is ageologic formation inWyoming. It preservesfossils dating back to theTorrejonian toTiffanian stages of thePaleogeneperiod.^[1]

• List of fossiliferous stratigraphic units in Wyoming
• Paleontology in Wyoming

• C. S. Scott and R. C. Fox. 2005. Windows on the evolution ofPicrodus (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

This article about a specificstratigraphicformation in Wyoming is astub. You can help Wikipedia byexpanding it.

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• Paleogene geology of Wyoming
• Selandian Stage
• Thanetian Stage
• Tiffanian
• Torrejonian
• Paleontology in Wyoming
• Geologic formations of Wyoming
• Western United States geologic formation stubs
• Wyoming stubs
• Paleogene stubs

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