Ornithomimus is a genus of ornithomimid dinosaurs from the Late Cretaceous Period of what is now North America.
Ka-Zar of Prehistoria[]
Ornithomimus are commonly known as Hackers by the primitive tribes of Cavemen that are found throughout the world of Prehistoria. These dinsoaurs would roam the open grasslands and plains most of every environment of Prehistoria. Tyrannosaurus would often hunt Ornithomimus for food but would also be hunted by predators such as Dimetrodon and Smilodon.