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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.
Stan Sacrison, an amateur paleontologist, was responsible for the initial discovery of Stan's bone fragments in 1987, and as a result is the namesake for the T. rex.He was out looking at plant life in South Dakota when he spotted Stan's pelvis visible in the side of a cliff. [3]
This hybrid (created from the species tyrannosaurus rex, velociraptor, and carnotaurus) serves as one of the show's main antagonists Big Eatie Tyrannosaurus rex Mother and daughter extracted from Isla Sorna Little Eatie Tyrannosaurus rex Pierce Kentrosaurus: Raised by Dr. Mae Turner and is able to communicate with him through her tablet Firecracker
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 ...
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]
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These facts alongside the roughness and rugosity of the skull are indications that this individual had reached an old age for a T. rex; in this case at least thirty years, as opposed to Sue's 28 years (which was the second oldest specimen known until now), making Trix the oldest Tyrannosaurus known.
Montana's T. rex (also known as "Peck's rex", "Peckrex", "Rigby's rex" and Tyrannosaurus "imperator") is the nickname given to a fossil specimen found in Montana in 1997. [56] The discovery was made by Louis E. Tremblay on 4 July 1997 working under the supervision of J. Keith Rigby Jr. who led the excavation and bone preparation.