Tiranosaurus Rex

Description
Tyrannosaurus was a genus of theropod dinosaur. The species Tyrannosaurus rex commonly abbreviated to T-rex, is a fixture in popular culture. It lived throughout what is now western of North America, with a much wider range than other tyrannosaurids. Fossils are found in a variety of rock formation dating to the last three million years of the Cretaceous Period about 68 to 65 million years ago. It was among the last non-avian dinosaurs to life before the Cretaceous-Tertiary extinction event.