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
Valley of the T. rex help it frighten away other meateaters, like dromaeosaurs, from carcasses. His description of T. rex is "Big, nasty, and stinky." Since "Valley of the T. rex" was shown on television, it has been met by criticism. Many of the arguments Horner use to support his case have been examined by other paleontologists, who do not agree that they conclusively show "Tyrannosaurus" was an obligate scavenger. As for "Tyrannosaurus" short forelimbs, it has been pointed out that predators like wolves and hyenas do not use their frontlegs to take down prey. Moreover, hyenas, like "Tyrannosaurus", have jaws and teeth to crush