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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.
The nickname stems from the apparent shiny dark color of the fossil bones, which occurred during fossilization by the presence of minerals in the surrounding rock; [citation needed] it was the first Tyrannosaurus rex specimen to receive a nickname, beginning a trend that continues with most major T. rex finds. [18]
Tyrannosaurus rex [189] Late Cretaceous. Hell Creek Formation. Small juvenile specimen, two years old, [190] named after where it was found: Jordan, Montana: Laurel [191] Tyrannosaurus rex: Juvenile specimen Lee-rex Tate Geological Museum: Tyrannosaurus rex: Little Clint [192] Carthage College Institute of Paleontology/Dinosaur Discovery Museum ...
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 ...
Tyrannosaurus, which roamed western North America, was one of the largest meat-eating dinosaurs. It appears this Tyrannosaurus was about 13-15 years old, two-thirds adult size, 25 feet (7.6 meters ...
Despite the fact that Dynamosaurus had been found first, the name Tyrannosaurus had appeared one page earlier in his original article describing both specimens. Therefore, according to the International Code of Zoological Nomenclature (ICZN), the name Tyrannosaurus was used. [6]
The original fossil is in private hands. Casts of the fossils are accessioned in the Nottingham Natural History Museum as NCMG 2021–7: Common name: Titus: Species: Tyrannosaurus rex: Age: c. 66.5 million years: Place discovered: Montana, United States: Date discovered: September 2014: Discovered by: Craig Pfister
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]