rex did not run but walked at speeds up to 15 mph. Recent computer models and other evidence suggest that T. rex had a good sense of smell, much like other predatory dinosaurs. rex’s olfactory bulbs (the part of the brain used to process smell) were large, and scientists believe that T. Because of its forward-facing eyes, it might have had better depth perception than most other predatory dinosaurs. rex had senses that were similar to those of its close relatives, birds and crocodiles. rex skulls and teeth reveal that it was a meat eater, and judging from its size, it could have eaten whatever animal it could catch or scavenge. Lush plant life supported a diverse animal community ranging from dinosaurs to mammals to insects. The global climate was also warmer than it is now. rex was alive?Īlthough the current landscape of Wyoming and Montana is dry and grassy, it probably resembled a Louisiana floodplain when T. rex lived about 66–68 million years ago during the Cretaceous Period in the western United States, including Montana and Wyoming. So, Tyrannosaurus rex was “King of the Tyrant Lizards.” “Tyrannosaurus” is Greek for “tyrant lizard,” and “rex” means “king” in Latin. What does the name “ Tyrannosaurus rex” mean? Eliot Elisofon Photographic Archives, African Art.READ MORE: Tiny Tyrannosaur Discovery Shows T. READ MORE: There Was a Dangerous Purpose Behind T. Paleontologist Thomas Carr from Carthage College, who was not involved in the new study, told Gizmodo that Scotty’s new weight calculation “changes our picture of what is within the range of possibility for these large animals and expands our understanding of the biology of large theropods at that extreme end of the size range.”Ĭurious viewers will soon be able to see the biggest-known king of the dinosaur world for themselves: In May 2019, the Royal Saskatchewan Museum is set to open a new exhibit featuring Scotty’s skeleton. Though the size difference between Scotty, Sue and other known Tyrannosaurus specimens may not be that significant-and certainly lies within the margin of error for calculating the weights of such prehistoric predators-Scotty still pushes the threshold of the maximum T. The T-Rex skeleton known as Sue on display in Washington D.C.'s Union Station in 2000. They observed what looked like bite marks on his tail, possibly battle scars incurred in a fight with another T. Scotty suffered broken ribs and a jaw infection, the researchers found. By studying the growth patterns on the dinosaur’s bones, the paleontologists estimated that it died in its early 30s-an unusually long life, by Tyrannosaurus standards. Scotty, which got its nickname after researchers shared a bottle of Scotch on the night of its discovery, is not just the largest-ever T. Some individuals were lankier than others and some were more robust. "There is considerable size variability among Tyrannosaurus. "This is the rex of rexes," Persons said in a statement. Discovered in 1990 in South Dakota, Sue weighed in at 18,651 pounds (8,460 kg), around 5 percent lighter than Scotty. rex fossils, including the famous “Sue,” once considered the biggest T. Their study of Scotty was the first to take detailed measurements, and to compare the specimen to other known T. The new research, led by paleontologist Scott Persons from the University of Alberta, was published in the journal The Anatomical Record.īy measuring Scotty’s hip, leg and shoulder bones, Persons and his team were able to estimate the dinosaur’s nearly 10-ton body mass. But until recently, the enormous fossil hadn’t been completely prepared for analysis. Through painstaking work, paleontologists managed to recover about 65 percent of the specimen officially known as RSM P2523.8 after its discovery nearly 30 years ago. rex, and the biggest dinosaur ever found in Canada. At nearly 42 feet long, the dinosaur weighed an estimated 19,555 pounds (8,870 kg) when it roamed prehistoric Saskatchewan some 66 million years ago, making it the world’s largest known T. Now, for the first time, researchers from the University of Alberta have taken Scotty’s detailed and accurate measurements. The towering and battle-scarred 'Scotty' reported by UAlberta paleontologists is the world's largest Tyrannosaurus rex and the largest dinosaur skeleton ever found in Canada.īack in the 1990s, it took nearly a decade for paleontologists in Canada to extricate the massive Tyrannosaurus rex skeleton known as “Scotty” from its solid sandstone casing.
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