List of the prehistoric life of North Dakota

This list of the prehistoric life of North Dakota contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of North Dakota.

The Paleobiology Database records no known occurrences of Precambrian fossils in North Dakota.

Illustration of a fossilized shell of the Cambrian-Late Ordovician brachiopod Lingulella
Restorative model of the Late Cretaceous mammal Alphadon
Mounted fossilized skeleton of the Late Cretaceous sea turtle Archelon
Mounted fossilized skeleton of the Late Cretaceous crocodilian Borealosuchus
Life restoration of the Late Cretaceous-Eocene choristoderan reptile Champsosaurus
Fossilized shell of the Cretaceous-modern oyster Crassostrea
Life restoration of the Late Cretaceous marsupial relative Didelphodon
Life restoration of the Late Cretaceous duck-billed dinosaur Edmontosaurus annectens
Fossilized leaf of the Permian-modern tree Ginkgo
Fossilized shell of the Late Cretaceous ammonoid cephalopod Hoploscaphites
A modern Lamna mackerel shark
Foliage and flower of a living Liriodendron tulipifera , or American Tulip-tree
Fossilized skull of the Late Cretaceous multituberculate mammal Meniscoessus
A living Nelumbo lotus
Interior of a fossilized shell of the Early Ordovician-modern marine bivalve Nucula
Fossilized skeleton of the Late Cretaceous dome-headed dinosaur Pachycephalosaurus
Electron micrograph of the fossilized teeth in multiple views of the Late Cretaceous theropod dinosaur Paronychodon
Restoration of the Late Cretaceous mosasaur Platecarpus
Life restoration of the Late Cretaceous dromaeosaurid Saurornitholestes preying upon a multituberculate mammal
Shells in differing orientations of Sphaerium freshwater clams
Life restoration of the Late Cretaceous herbivorous dinosaur Thescelosaurus
Fossilized skeleton of the Late Cretaceous tyrannosaur Tyrannosaurus
Fossilized skeleton of the Late Cretaceous-Oligocene Alligator relative Allognathosuchus
Restorative portrait of the Miocene oreodont mammal Brachycrus
A living Corylus , or hazel
Life restoration of the Eocene-Miocene false saber-toothed cat Dinictis . Robert Bruce Horsfall (1913).
Restored foliage of the Late Cretaceous-Miocene ginkgo tree Ginkgo adiantoides
Fossilized skeleton of the Eocene-Oligocene rodent Ischyromys
Mounted fossilized skeleton of the Miocene-Pleistocene ground sloth Megalonyx
A living Nelumbo lotus
Fossilized skull of the Eocene-Oligocene lizard Peltosaurus
Life restoration of a female (left) and male of the Oligocene-Miocene even-toed ungulate Protoceras . Charles R. Knight (1896).
Life restoration of the Paleocene pantodont mammal Titanoides