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 period. Since it was first described in 1905, "Tyrannosaurus rex" has become the most widely recognized dinosaur species in popular culture. It is the only dinosaur that is commonly known to the general public by its full scientific name (binomial name) and the scientific abbreviation "T. rex" has also come into wide usage. Robert T. Bakker notes this in "The Dinosaur Heresies" and explains that, “a name like ‘"Tyrannosaurus rex"’ is just irresistible to the tongue." Notes Citations Tyrannosaurus Tyrannosaurus is a genus of coelurosaurian theropod dinosaur. The species Tyrannosaurus rex ("rex" meaning "king" in Latin), often called T. rex