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Tyrannosaurus Rex Tooth
Age - 67/66 Million Years Old
Late Cretaceous
Species - Tyrannosaurus Rex
Specimen - Tooth
Discovered - South Dakota, Hell Creek Formation
** Tyrannosaurus Rex **
Tyrannosaurus is a genus of tyrannosaurid theropod dinosaur. The species Tyrannosaurus rex, often called T. rex or colloquially T-Rex, is one of the best represented of these 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.
