Harrison Formation

Harrison Formation
Stratigraphic range: Miocene
Burrow fossil from the Harrison Formation (Middle Miocene; Sioux County, Nebraska)
Type	Formation
Location
Region	South Dakota, Wyoming, Nebraska
Country	United States

The Harrison Formation is a geologic group in South Dakota and Nebraska. It preserves fossils from the Miocene.

• List of fossiliferous stratigraphic units in South Dakota
• Paleontology in South Dakota

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.