Paleontologists from the University of Alberta reported the world’s biggest Tyrannosaurus rex and the largest dinosaur skeleton ever found in Canada. The 13-meter-long T. rex was nicknamed Scotty and lived almost 66 million years ago.
“This is the rex of rexes,” said the lead author of the study, Scott Persons. “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.”
Scotty, named after a bottle of celebratory scotch has leg bones weighing roughly 8,800 kg and the scientific work required on the dinosaur is corresponding to its massive size.
The skeleton was originally discovered in 1991. However, the hard sandstone encasing the bones took over a decade to remove and only now the scientists have been able to study it and have found the greatness of its size and weight.
“Scotty is the oldest T. rex known,” Persons explained. “By which I mean, it would have had the most candles on its last birthday cake. You can get an idea of how old a dinosaur is by cutting into its bones and studying its growth patterns. Scotty is all old growth.”
The T. rexes according to Scotty grew fast and died at a young age. Scotty too was believed to be dead at the age of 30.
“By Tyrannosaurus standards, it had an unusually long life. And it was a violent one,” Persons added. “Riddled across the skeleton are pathologies—spots where scarred bone records large injuries.”
Among the injiuries of Scotty are an infected jaw, some broken ribs, and something that seems like a bite from another T. rex present on its tail.
”I think there will always be bigger discoveries to be made,” Persons said. “But as of right now, this particular Tyrannosaurus is the largest terrestrial predator known to science.”