Meet 'Scotty,' the largest Tyrannosaurus rex ever discovered
About 66 million years ago, the fossil -- nicknamed "Scotty" -- belonged to a 42-foot-long Tyrannosaurus roaming prehistoric Saskatchewan. When researchers studied the leg bones, they found that the dinosaur probably weighed in at about 9.7 tons. That makes this Tyrannosaurus bigger than any other carnivorous dinosaur.
The study was published last week in The Anatomical Record
"This is the rex of rexes," Scott Persons, lead author of the study and a postdoctoral researcher in the University of Alberta's Department of Biological Sciences, said in a statement. "There is considerable size variability among Tyrannosaurus. Some individuals were lankier than others and some were more robust. Scotty exemplifies the robust. Take careful measurements of its legs, hips, and even shoulder, and Scotty comes out a bit heftier than other T. rex specimens."
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