Ludlow Formation | |
---|---|
Stratigraphic range: Paleogene | |
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Jarosite
concretions from the Ludlow Formation (South Dakota) | |
Type | Formation |
Unit of | (partially) Fort Union Formation |
Underlies | Cannonball Formation and Slope Formation |
Overlies | Hell Creek Formation |
Location | |
Region | North Dakota, South Dakota |
Country | United States |
The Ludlow Formation is a geologic formation in western North Dakota. [1] It preserves fossils dating back to the Paleogene Period.
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