My next addition to "My Jurassic Park" is with a single species the Hadrosaur: Edmontosaurus annectens. In the late Cretaceous Edmontosaurus was one of the largest and very last Hadrosaurs to exist. It roamed the western North America 66 million years ago and remains are found in its Maastrichtian deposits. Herds of these animals must have been awesome to watch because they were about the size T-rex around 40 ft (12m) long and a great food source for them. All my material was collected fro