T-Rex

Tyrannosaurus Temporal range: Late Cretaceous, 68–66 Ma PreЄ Є O S D C P T J K Pg N ↓
Reconstruction of the T. rex type specimen (CM 9380) at the Carnegie Museum of Natural History
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Dinosauria
Order:	Saurischia
Suborder:	Theropoda
Family:	†Tyrannosauridae
Subfamily:	†Tyrannosaurinae
Tribe:	†Tyrannosaurini Osborn, 1906
Genus:	†Tyrannosaurus Osborn, 1905
Type species
†Tyrannosaurus rex Osborn, 1905
Synonyms
Genus synonymy Manospondylus Cope, 1892 Dynamosaurus Osborn, 1905 Nanotyrannus? Bakker, Williams & Currie, 1988 Stygivenator Olshevsky, 1995 Dinotyrannus Olshevsky, 1995 Species synonymy Manospondylus gigas Cope, 1892 Aublysodon amplus? Marsh, 1892 Deinodon amplus? (Marsh, 1892) Manospondylus amplus? (Marsh, 1892) Stygivenator amplus? (Marsh, 1892) Tyrannosaurus amplus? (Marsh, 1892) Aublysodon cristatus? Marsh, 1892 Deinodon cristatus? (Marsh, 1892) Stygivenator cristatus? (Marsh, 1892) Dynamosaurus imperiosus Osborn, 1905 Tyrannosaurus imperiosus (Osborn, 1905) Gorgosaurus lancensis? Gilmore, 1946 Albertosaurus lancensis? (Gilmore, 1946) Aublysodon lancensis? (Gilmore, 1946) Deinodon lancensis? (Gilmore, 1946) Nanotyrannus lancensis? (Gilmore, 1946) Stygivenator molnari (Paul, 1988) Dinotyrannus megagracilis Olshevsky, 1995

Tyrannosaurus (/tᵻˌrænəˈsɔːrəs/ or /taɪˌrænəˈsɔːrəs/, meaning "tyrant lizard", from the Ancient Greek tyrannos (τύραννος), "tyrant", and sauros (σαῦρος), "lizard") is a genus of coelurosaurian theropod dinosaur. The species Tyrannosaurus rex (rex meaning "king" in Latin), is one of the most well-represented of the large theropods. Tyrannosaurus lived throughout what is now western North America, on what was then an island continent known as 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. It was the last known member of the tyrannosaurids, and among the last non-avian dinosaurs to exist before the Cretaceous–Paleogene extinction event.