Tyrannosaurus

phylum	Chordata	Tyrannosaurus is a genus of coelurosaurian theropod dinosaur. The species Tyrannosaurus rex (rex meaning "king" in Latin), commonly abbreviated to T. rex, is a fixture in popular culture. It lived throughout what is now western North America, at the time an island continent termed Laramidia, with a much wider range than other tyrannosaurids. Fossils are found in a variety of rock formations dating to the upper Cretaceous Period, 67 to 65.5 million years ago. It was among the last non-avian dinosaurs to exist before the Cretaceous–Paleogene extinction event. For more information, visit the Wikipedia entry. Get back to Theropoda
clade	Sauropsida
clade	Dinosauria
order	Saurischia
Suborder	Theropoda
family	Tyrannosauridae
genus	Tyrannosaurus
species	T. rex
Period	Late Cretaceous