This list of the Cenozoic life of North Dakota contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of North Dakota and are between 66 million and 10,000 years of age.
Fossilized skeleton of the Late Cretaceous-Oligocene
Alligator
relative
Allognathosuchus
Life restoration of the Eocene-Oligocene entelodont mammal
Archaeotherium
Restorative portrait of the Miocene oreodont mammal
Brachycrus