Tyrannosaurus Rex

Tyrannosaurus (/tɨˌrænəˈsɔrəs/ or /taɪˌrænəˈsɔrəs/ ("tyrant lizard", from the Ancient Greek tyrannos (τύραννος), "tyrant", and sauros(σαῦρος), "lizard"[1]) is a genus of coelurosaurian theropoddinosaur. The species Tyrannosaurus rex (rex meaning "king" in Latin), commonly abbreviated to T.rex, is one of the most well-represented of the large theropods. Tyrannosaurus lived throughout what is now western North America, which then was an island continent named Laramidia. Tyrannosaurus had a much wider range than other tyrannosaurids. Fossils are found in a variety of rock formations dating to the Maastrichtian age of the upper Cretaceous Period, 68 to 66 million years ago.[2] It was among the last non-avian dinosaurs to exist before the Cretaceous–Paleogene extinction event.