Raptorex Raptorex Raptorex is a dubious genus of tyrannosaurid dinosaur. Its fossil remains consist of a single juvenile specimen probably uncovered in Mongolia, or possibly northeastern China. The type species is "R. kriegsteini", described in 2009 by Sereno and colleagues. The genus name is derived from Latin ', "robber", and ', "king". The specific name honours Roman Kriegstein, a survivor of the Holocaust, whose son Henry Kriegstein donated the specimen to the University of Chicago for scientific study. While initially considered to have come from the Yixian Formation of China, dated to approximately 125 million years ago during the early Cretaceous
Tyrannosaurus largest bite force among all terrestrial animals. By far the largest carnivore in its environment, "Tyrannosaurus rex" was most likely an apex predator, preying upon hadrosaurs, armored herbivores like ceratopsians and ankylosaurs, and possibly sauropods. Some experts have suggested the dinosaur was primarily a scavenger. The question of whether "Tyrannosaurus" was an apex predator or a pure scavenger was among the longest debates in paleontology. Most paleontologists today accept that "Tyrannosaurus" was both an active predator and a scavenger. More than 50 specimens of "Tyrannosaurus rex" have been identified, some of which are nearly complete skeletons. Soft tissue and proteins