Late Cretaceous Fauna - Late Cretaceous Fauna - Late Cretaceous Fauna. From left to right: a couple of Stegoceras validum, a Champsosaurus, an Ornithomimus edmontonicus and in the distance an Edmontonia longiceps. During sunset, a pair of Stegoceras validum jousting while an Ornithomimus edmontonicus sprints along a riverbank below, passing near a Champsosaurus. Ambling in the distance is an Edmontonia longiceps
Ornithomimus - An ornithomimus edmontonicus passes near a champsosaurus. In the background an Edmontonia longiceps. Ornithomimus is an Ornithmomidae dinosaur dating back to the late cretaceous and found fossils in the western United States. The Ornithomimus was 3.5 metres long and 2.1 metres high and weighed between 100 and 150 kg. He was paged and looked like an ostrich. An ornithomimus edmontonicus near a champsosaurus. In background is an Edmontonia longiceps. Ornithomimus is a genus of dinosaur from the Late Cretaceous Period. Ornithomimus was 3.5 meters long, 2.10 meters high and weighed around 100-150 kg. It was bipedal and resembled an ostrich