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Allosaurus was a large bipedal predator for its time. Its skull was light, robust, and equipped with dozens of sharp, serrated teeth. It averaged 8.5 meters (28 ft) in length for A. fragilis, with the largest specimens estimated as being 9.7 meters (32 ft) long. Relative to the large and powerful legs, its three-fingered hands were small and ...
Tyrannosaurus (/ t ɪ ˌ r æ n ə ˈ s ɔː r ə s, t aɪ-/) [a] is a genus of large theropod dinosaur.The type species Tyrannosaurus rex (rex meaning 'king' in Latin), often shortened to T. rex or colloquially T-Rex, is one of the best represented theropods.
The largest species was Tyrannosaurus rex, the most massive known terrestrial predator, which measured over 13 metres (43 ft) in length [2] and according to most modern estimates up to 8.87 metric tons (9.78 short tons) in weight. [3] [4] Tyrannosaurids were bipedal carnivores with massive skulls filled with large teeth. Despite their large ...
Male Majungasaurus vs. Female Majungasaurus (Identified as "Majungatholus" in the narration) 29 July 2008 () 2 "T-Rex Hunter" Tyrannosaurus vs. Nanotyrannus: 5 August 2008 () 3 "Gang Killers" Deinonychus vs. Tenontosaurus: 12 August 2008 () 4 "Bloodiest Battle" Allosaurus vs. Ceratosaurus vs. Stegosaurus vs. Camarasaurus
Tyrannoraptora (Tyrannosaurus rex + P. domesticus) Coelurus fragilis; Tyrannosauroidea (T. rex > Ornithomimus velox, Deinonychus antirrhopus, A. fragilis) Dryptosauridae; Tyrannosauridae (T. rex + Tarbosaurus bataar + Daspletosaurus torosus + Albertosaurus sarcophagus + Gorgosaurus libratus) Tyrannosaurinae (T. rex > A. sarcophagus ...
The holotype of the former (T. imperator) is the Sue specimen, and the holotype of the latter (T. regina) is Wankel rex. Paul interpreted Sue to represent an earlier population of Tyrannosaurus, which speciated into T. rex and T. regina. [51]
To make the family more exclusive, Thomas Holtz redefined it in 2004 to include all species more closely related to Tyrannosaurus rex than to Ornithomimus velox, Deinonychus antirrhopus or Allosaurus fragilis. [3]
Allosaurus fragilis: AMNH 5753 American Museum of Natural History: New York: ... Tyrannosaurus: RTMP 81.12.1 Huxley T.rex Royal Tyrrell Museum: Drumheller: Alberta: