Raptorex

Raptorex was a small predatory dinosaur from the Late Cretaceous period of Mongolia, about 75 million years ago. A small tyrannosaurid related to T. rex, some scientists have debated that this species is actually a juvenile of the large Tyrannosaur species Tarbosaurus. With long legs, thin jaws, and a gracile build, this Mongolian carnivore was built for hunting smaller, fast moving prey.