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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.
Another large but even more controversial sauropod is Bruhathkayosaurus, which had a calculated weight ranging between 126–220 t (139–243 short tons) and a length of 44.1 m (145 ft) [13] [14] [15] Although the existence of this sauropod had long been dismissed as a potential fake or a misidentification of a petrified tree trunk, recent ...
This sudden change in growth rate may indicate physical maturity, a hypothesis that is supported by the discovery of medullary tissue in the femur of an 18-year-old T. rex from Montana (MOR 1125, also known as "B-rex"). [51] Medullary tissue is found only in female birds during ovulation, indicating that "B-rex" was of reproductive age. [52]
Previously discovered T. rex skeletons were usually missing over half of their bones. [10] It was later determined that Sue was a record 90 percent complete by bulk, [11] and 73 percent complete counting the elements. [12] Of the 360 known T. rex bones, around 250 have been recovered. [1]
At the time of its discovery, the fossil was one of only 12 known T. rex skeletons of significant completion. [3] The name "Scotty" came from the celebratory bottle of scotch shared by the team that had discovered and identified the bones. [11] Alongside the fossil was also found the only known T. rex coprolite in the world. [12]
The very largest known ornithopods, like Shantungosaurus were as heavy as medium-sized sauropods at up to 23 t (25 short tons), [455] [456] and 16.6 m (54 ft) in length. [455] Magnapaulia reached 12.5 m (41 ft) in length, [ 457 ] or, according to original description, even 15 m (49 ft).
Theri comes from the same family as the T-rex and Giganotosaurus. If you saw the movie, you know what else went into the Indominous. Jurassic World set a record for the biggest opening weekend ...
Victoria is estimated at the age of around 18–25 at the time of her death 65 million years ago. Her skeleton includes approximately 199 bones and nearly complete skull, accounting for about 65% of the total skeleton, making her the second most complete T. rex skeleton discovered to date (behind “Sue” for completeness).