Tyrannosaurus Rex

Tyrannosaurus (Greek for "tyrant Lizard King"), more commonly referred to as Tyrannosaurus rex or colloquially known as T. rex (or T-rex), was a genus of large tyrannosaurian theropod dinosaur that thrived during the Maastrichtian age of the late Cretaceous epoch, 68 to 66 million years ago. Tyrannosaurus has been depicted in nearly every form of dinosaur-related media, and over the past few decades has become one of if not the most popular and well-known of its kind. There have been around 50 individuals of this taxon found since its discovery in the early 1900s. The largest, most complete specimen of Tyrannosaurus rex, nicknamed "Sue" (catalog number:"FMNH PR 2081", located at Chicago's Field Museum of Natural History, which is roughly 90% complete) and measures 12.3 meters (forty feet) in length, approximately four meters (thirteen feet) high at the hips and 8.46 tons (7.67 metric tons) in mass, making it among the largest terrestrial predators to ever exist. Tyrannosaurus lived throughout present-day western North America, within a depositional fossil formation known as Hell Creek. Tyrannosaurus had a much broader geographical range than other tyrannosaurids, including Montana, Wyoming, South and North Dakota, Colorado, numerous locations in Canada and even Texas. It was among the last non-avian dinosaurs to exist prior to the K-T (Cretaceous-Tertiary) extinction event. Although Tyrannosaurus rex had a short neck, it had powerful neck muscles that helped support the enormous head.

Individual Specimen
Tyrannosaur Doe

Tyrannosaur Bull

Tyrannosaur Buck

Tyrannosaurus Rex (Isla Nublar)