Ludlow Formation
The Ludlow Formation is a geologic formation in western North Dakota. It preserves fossils dating back to the Paleogene Period.
| Ludlow Formation | |
|---|---|
| Stratigraphic range: Paleogene | |
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 |
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