Dinosaurs » A-Z Dinosaurs Lists » Tyrannosaurus Rex Dinosaur

Tyrannosaurus Rex is 40 feet long, 18 feet high, and its weight is about six tons and has a four-foot-long mouth filled with pointed teeth seven inches long. It can follow his prey transversely an open plain at speeds of forty miles per hour and when he grasp his victim; one bite from his huge mouth can smash their backbones. And it name means tyrant lizard king and it is one of the most feared killer that ever lived.

Tyrannosaurus rex, from relatives of dinosaurs called tyrannosaurids, was first exposed by Barnum Brown in 1902 in Hell Creek, Montana. Even though the bones were not complete, concerning 30%, Henry F. Osborn described it in 1906. There was also sufficient of the bone to effort a renovation and it is now on exhibit at the Carnegie Institute in Pittsburgh.

Tyrannosaurus rex lives 136 to 65 million years before during the Cretaceous era. The tyrannosaurids had huge heads, enormous bodies, powerful legs, large clawed toes, and jagged teeth. Tyrannosaurus Rex, arms were comparatively small yet were very powerful with each and every hand contains two fingers. Further tyrannosaurids consist of Albertosaurus, Tarbosaurus, Daspletosaurus and only some others that are slight known. Velociraptor, Troodon, Ornithomimus and Allosaurus are close relations.

Tyrannosaurus rex, may contain an apex marauder, aggressive upon hadrosaurs and ceratopsians, Even though various experts have recommended it was mainly a hunter. These gigantic lobes recommend that a Tyrannosaurus could be able to smell decaying remains, his next meal, from miles away. Also, the Tyrannosaurus' height and size may have been additional useful for seeing long distances to grasp his meals and chasing off other dinosaurs opposing for a remains slightly than for hunting be alive prey.