When Dinosaurs Ruled

Skeleton casts of the dinosaurs Triceratops and Tyrannosaurus rex

Step back 65 million years to the time when dinosaurs ruled. Western North Dakota was a huge delta. Exotic animals, including dinosaurs, lived in this subtropical environment. A wall-size mural depicts North Dakota as it appeared during that time. See impressive life-sized casts of a Tyrannosaurus rex and a Triceratops engaged in battle. These animals are brought to life and battle through computer animation where you get to customize the design of the dinosaurs.

View fossils of plants and animals that lived in the lush environment of woodlands, swamps, and ponds, including the following:

  • Edmontosaurus leg bone with gnaw marks from Tyrannosaurus rex bites
  • A Triceratops skull
  • Edmontosaurus jaw
  • A flying Pteranodon and its nest with babies
  • Skeleton replicas of small Dromaeosaurus raptors
  • A Triceratops brow horn

Welcoming you in the hallway outside this gallery is Dakota, an extremely rare mummified duck-billed dinosaur Edmontosaurus.