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Tyrannosaurus | |
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Skeleton at the Carnegie Museum of Natural History | |
Scientific classification | |
Unrecognized taxon (fix): | Tyrannosaurus |
Type species | |
†Tyrannosaurus rex Osborn, 1905 | |
Other species | |
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Synonyms | |
Genus synonymy Dinotyrannus Olshevsky & Ford, 1995 Dynamosaurus Osborn, 1905 Manospondylus Cope, 1892 Nanotyrannus Bakker, Williams & Currie, 1988 Stygivenator Olshevsky, 1995 Tarbosaurus? Maleev, 1955 Species synonymy Aublysodon amplus? Marsh, 1892 Deinodon amplus? (Marsh, 1892) Manospondylus amplus? (Marsh, 1892) Stygivenator amplus? (Marsh, 1892) Tyrannosaurus amplus? (Marsh, 1892) Aublysodon cristatus? Marsh, 1892 Deinodon cristatus? (Marsh, 1892) Stygivenator cristatus? (Marsh, 1892) Manospondylus gigas Cope, 1892 Dynamosaurus imperiosus Osborn, 1905 Tyrannosaurus imperiosus (Osborn, 1905) Albertosaurus lancensis (Gilmore, 1946) Aublysodon lancensis (Gilmore, 1946) Deinodon lancensis (Gilmore, 1946) Gorgosaurus lancensis Gilmore, 1946 Nanotyrannus lancensis (Gilmore, 1946) Dinotyrannus megagracilis Olshevsky & Ford, 1995 Stygivenator molnari (Paul, 1988 Ornithomimus grandis (Marsh, 1897) |
Tyrannosaurus (meaning "tyrant lizard") was a large predatory dinosaur from the Upper Cretaceous, 68 to 65 million years ago.
Tyrannosaurus was a bipedal carnivore with a massive skull balanced by a long, heavy tail. Compared to the large and powerful hind limbs, its forelimbs were small, but powerful for their size. They had two clawed digits.
There is discussion as to whether it was a hunter or a scavenger. Like most dominant meat-eaters of today, such as lions and hyenas, Tyrannosaurus might have been both. It had a very strong jaw, and its bite power could snap the bones of smaller dinosaurs.