Ludlow Formation

The Ludlow Formation is a geologic formation in western North Dakota.^[1] 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

See also

• Paleontology portal

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