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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.
Lythronax (LYE-thro-nax) is a genus of tyrannosaurid dinosaur that lived in North America around 81.9-81.5 million years ago during the Late Cretaceous period.The only known specimen was discovered in Utah in the Wahweap Formation of the Grand Staircase–Escalante National Monument in 2009, and it consists of a partial skull and skeleton.
The eye-sockets of T. rex faced mainly forwards, giving it good binocular vision. The eye-sockets of Tyrannosaurus are positioned so that the eyes would point forward, giving them binocular vision slightly better than that of modern hawks. While predatory theropods in general had binocular vision directly in front of their skull, tyrannosaurs ...
Tyrannosaurus was named by Henry Fairfield Osborn in 1905, along with the family Tyrannosauridae. [17] The name is derived from the Ancient Greek words τυραννος tyrannos ('tyrant') and σαυρος sauros ('lizard'). The superfamily name Tyrannosauroidea was first published in a 1964 paper by the British paleontologist Alick Walker. [18]
By the end of the Cretaceous Period, tyrannosauroids were the dominant large predators in the Northern Hemisphere, culminating in the gigantic Tyrannosaurus. Subcategories This category has the following 2 subcategories, out of 2 total.
The holotype was named as Tyrannosaurus bataar by Evgeny Maleev as Tyrannosaurus bataar. [7] The genus Tarbosaurus was also described in the same year based on PIN 551–2, a specimen with a skull and skeletal remains discovered by the same expedition in 1948 and 1949 as Tarbosaurus efremovi. [8]
A baby T-Rex. Horácio Tyrannosaurus rex: Turma do Piteco (The Cavern Clan) and Horacio's World: Mauricio de Sousa: A baby T-Rex who was first introduced as the pet of Pitheco the caveman in The Cavern Clan, after which it received its own spin-off, Horacio's World. Lollo Brontosaurus: Suske en Wiske in the album De Groene Splinter (The Green ...
The discovery of Lythronax argestes, a much earlier tyrannosaurine, further reveals the close relationship between Tyrannosaurus and Tarbosaurus. It was also discovered that Lythronax is a sister taxon to a clade consisting of Campanian genus Zhuchengtyrannus, and the Maastrichtian genera Tyrannosaurus and Tarbosaurus.