Cannonball Formation Explained

Cannonball Formation
Type:	Formation
Age:	Paleogene
Region:	North Dakota
Country:	United States
Underlies:	Bullion Creek Formation, Slope Formation
Overlies:	Hell Creek Formation, Ludlow Formation

The Cannonball Formation is a geologic formation in western North Dakota.^[1] It preserves fossils dating back to the Paleogene Period.

See also

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

References

• Web site: Fossilworks: Gateway to the Paleobiology Database. ((Various Contributors to the Paleobiology Database)). 17 December 2021.

Notes and References

1. Web site: Bluemle. John P. 1988. Generalized Bedrock Geological Map of North Dakota. North Dakota Geological Survey, Miscellaneous Map 28. 2017-02-03.