Cannonball Formation
| Cannonball Formation Stratigraphic range: Paleogene | |
|---|---|
| Type | Formation |
| Underlies | Bullion Creek Formation, Slope Formation |
| Overlies | Hell Creek Formation, Ludlow Formation |
| Location | |
| Region | North Dakota |
| Country | United States |
The Cannonball Formation is a geologic formation in western North Dakota.[1] It preserves fossils dating back to the Paleogene Period.
See also[]
References[]
- ^ Bluemle, John P. 1988. "Generalized Bedrock Geological Map of North Dakota" (PDF). North Dakota Geological Survey, Miscellaneous Map 28. Retrieved 2017-02-03.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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