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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. It lived throughout what is now western North America, on what was then an island ...
The smallest known Tyrannosaurus rex individual (LACM 28471, the "Jordan theropod") is estimated to have weighed only 29.9 kilograms (66 lb) at only 2 years old, while the largest, such as FMNH PR2081 ("Sue"), most likely weighed about 5,654 kg (12,465 lb), estimated to have been 28 years old, an age which may have been close to the maximum for ...
Scotty is the nickname for the Tyrannosaurus rex fossil, catalogued as RSM P2523.8, that was discovered in Saskatchewan, Canada in 1991. The fossilised remains were painstakingly removed, almost completely by hand, over two decades from the rock in which they were embedded. [1]
This individual lived about 67 million years ago, near the Cretaceous Period's end. Tyrannosaurus and the rest of the dinosaurs, aside from their bird descendants, were wiped out 66 million years ...
Laramidia stretched from modern-day Alaska to Mexico. [2] The area is rich in dinosaur fossils. Tyrannosaurs, dromaeosaurids, troodontids, hadrosaurs, ceratopsians (including Kosmoceratops and Utahceratops [3]), pachycephalosaurs, and titanosaur sauropods are some of the dinosaur groups that lived on this landmass.
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]
In western North America during the twilight of the dinosaur age, the unquestioned ruler was Tyrannosaurus rex, one of the largest terrestrial predators in Earth's history. Researchers have ...
These “megaraptorids” lived alongside the smaller “carcharodontosaurs”, which were 2-4 metres long, as well as the even smaller but more agile “unenlagiines” or “southern raptors”.