Tyrannosaurus

Tyrannosaurus rex was a large theropod dinosaur from the late Cretaceous of North America.

Facts
It is the most famous dinosaur in the world, appearing in a lot of popular culture. It was a very large theropod, once hailed as the "King of Dinosaurs", although its once unbeaten size has been surpassed by a number of other large theropods, including Giganotosaurus, Oxalaia, Saurophaganax, Carcharodontosaurus, Spinosaurus, and possibly Tyrannotitan and Chilantaisaurus. However, in terms of mass, more recent estimates show that it most likely; speculation wise; surpasses most of the aforementioned creatures. A related, also very large tyrannosaur from about the same time in Asia, Tarbosaurus bataar, may belong to this genus.

Episode 1: Lost World
Tyrannosaurus was compared to Spinosaurus and Carcharodontosaurus in two database scenes.

Episode 3: Last Killers
Tyrannosaurus was compared to some of its relatives multiple times, including Daspletosaurus in a database scene. In a another database scene, it was used as evidence for the ceratopsian-tyannosaur arms race, with its ceratopsian being Triceratops.

Episode 4: Fight for Life
A Tyrannosaurus skull was compared to a Predator X (Pliosaurus funkei) skull in a database scene.

Episode 5: New Giants
a Tyrannosaurus skull was compared to Mapusaurus skull in a database scene.

Episode 6: The Great Survivors
Tyrannosaurus was seen in a database scene in the section North American Dinosaurs.