Tyrannosaurus rex, also known as Tyrannosaurus rex, is a type of theropod dinosaur and the most representative large theropod dinosaur. Tyrannosaurus rex once roamed an island continent called Laramidia (now located on the eastern foothills of the Rocky Mountains in western North America). The distribution range of tyrannosaurs is wider than other members of the tyrannosauridae family. Its fossils were discovered in various strata of the Late Cretaceous Maastrichtian stage (approximately 68 to 66 million years ago). Tyrannosaurus is the last known member of the Tyrannosauridae family before the Cretaceous Paleogene extinction event, and is also one of the latest non avian dinosaurs to go extinct. Tyrannosaurus rex is currently the heaviest known carnivorous dinosaur.

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. This specimen fossil is currently preserved at the Vienna Museum of Natural History.

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.