Sentinel Butte Formation | |
---|---|
Stratigraphic range: Thanetian ~ | |
Type | Formation |
Unit of | Fort Union Formation |
Underlies | Golden Valley Formation |
Overlies | Bullion Creek Formation |
Location | |
Region | North Dakota |
Country | United States |
The Sentinel Butte Formation is a geologic formation of Paleocene age in the Williston Basin of western North Dakota.[1] It preserves significant assemblages of non-marine plant and animal fossils.