Tyrannosaurus (Tyrannosaurus) is a genus under Tyrannosauridae. The only effective species is the model species Tyrannosaurus rex or Rexosaurus rex. It is a large carnivorous dinosaur with a length of about 15 meters, a hip height of about 5 meters, and a weight of about 8 metric tons to 13 tons. The Maastricht order, which lived at the end of the Cretaceous, was about 67 million to 66 million years ago. It was one of the last dinosaur populations before the Cretaceous-Tertiary extinction event. Fossils are distributed in the United States and western Canada in North America, and the distribution range is wider than that of other Tyrannosauridae. Western North America in the late Cretaceous period is an independent continent of Larramidia.

Tyrannosaurus belongs to the Tyrannosaurus genus of the Tyrannosauridae superfamily and is the only species in this genus. It was named in 1905 by American paleontologist and member of the American Academy of Arts and Sciences, Henry Osborne. If we refer to the translation format of other dinosaur species, it would be more appropriate to translate its species name as' King Tyrannosaurus'. Adult Tyrannosaurus rex is about 12 meters long and weighs around 7 tons, making it one of the largest land predators in Earth's history. Although the current size of Tyrannosaurus rex has been challenged by large Allosaurus and Spinosaurus, considering the depth of research and cultural influence, it is still truly the king of dinosaurs.

Tyrannosaurus belongs to the Tyrannosaurus genus of the Tyrannosauridae superfamily and is the only species in this genus. It was named in 1905 by American paleontologist and member of the American Academy of Arts and Sciences, Henry Osborne. If we refer to the translation format of other dinosaur species, it would be more appropriate to translate its species name as' King Tyrannosaurus'. Adult Tyrannosaurus rex is about 12 meters long and weighs around 7 tons, making it one of the largest land predators in Earth's history. Although the current size of Tyrannosaurus rex has been challenged by large Allosaurus and Spinosaurus, considering the depth of research and cultural influence, it is still truly the king of dinosaurs.