Ornithomimus velox

The T-Rex is a carnivorous dinosaur that could measure up to 12 meters long and weigh around 7 tons

as well as competition from other predators and pressure from herbivores

Charonosaurus (C

Meraxes gigas Carcharodontosaurus Ornithomimus veloxMeraxes (M. gigas `Giant Dragon) is the only species of the extinct genus Meraxes, a carcharodontosaurid theropod dinosaur, which lived during the Cenomanian of the middle Cretaceous period, between 95 to 93 million years ago, in what is now South America. Meraxes was a large theropod, estimated to be about 10 meters long and weighing about 4. 5 tons. Its skull alone measured 1. 27 meters long, exceeding that of Acrocanthosaurus, which had a skull