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 have argued that "Tyrannosaurus" could have had a well-developed sense of sight with binocular vision, typical of a predator, and a well-developed sense of smell in "Tyrannosaurus" could have been used for hunting, rather than just finding carcasses. Evidences for a predatory lifestyle in "Tyrannosaurus" includes discoveries of skeletons from herbivorous dinosaurs like "Edmontosaurus" and "Triceratops", with evidence of healed bitemarks on them, indicating they survived attacks from big predators, possibly "Tyrannosaurus". Valley of the T. rex Valley of the T. rex is a 2001 Discovery Channel documentary, featuring paleontologist Jack Horner. The program shows Horner with his digging team