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Bullion Creek Formation
Stratigraphic range: Thanetian ~58–55 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Formation
Underlies	Sentinel Butte Formation
Overlies	Slope and Cannonball formations
Location
Region	North Dakota
Country	United States

The Bullion Creek Formation is a geologic formation in western North Dakota. It preserves bones and tracks of an extinct crocodile and other fossils of Late Paleocene age.

See also

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

References

1. Bluemle, John P. 1988. "Generalized Bedrock Geological Map of North Dakota" (PDF). North Dakota Geological Survey, Miscellaneous Map 28. Retrieved 2017-02-03.{{cite web}}: CS1 maint: numeric names: authors list (link)
2. Erickson, B.R., 2005. Crocodile and Arthropod Tracks from the Late Paleocene Wannagan Creek Fauna of North Dakota, USA. Ichnos, 12(4):3 03-308.

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