University of Alberta discovers world's biggest Tyrannosaurus rex

James Marshall
March 24, 2019

Named for a bottle of scotch that was shared the night it was discovered, "Scotty" is also the largest dinosaur skeleton ever found in Canada.

Almost three decades after being discovered, the fossilized remains of a Tyrannosaurus rex have officially been declared the largest in the world. "There is considerable size variability among Tyrannosaurus".

"This is the rex of rexes", lead study author Scott Persons said in a news release.

In short, a Tyrannosaurus Rex found in Canada back in the 90s has been confirmed recently as the world's largest T-Rex ever discovered on Earth, measuring 13-meter long and weighing about 9,000 kilos.

Officials with UAlberta say the record-breaking rex has leg bones suggesting a living weight of more than 8,800 kg, making it bigger than all other carnivorous dinosaurs.

Tyrannosaurus Rex has been the fiercest predator in the world of the dinosaurs, and it roamed the Earth in the upper Cretaceous Period, about 68 to 66 million years ago. "Scotty exemplifies the robust", Persons said.

While the giant carnivore's skeleton was discovered in 1991, paleontologists spent more than a decade just removing the hard sandstone that covered its bones.

Scotty's size and weight aren't all that set it apart, Persons noted-the Canadian mega-rex also lays claim to seniority.

"Scotty is the oldest T. rex known", having lived into its 30s, Persons said. "By which I mean, it would have had the most candles on its last birthday cake". "Scotty is all old growth". T. Rexes grew up very fast and died early, just like all the other rock stars; Scotty was a sagacious, elder T. Rex at the ripe old age 30 to 35 years old. Experts describe that estimated lifespan as unusually long for a Tyrannosaurus rex.

Marks observed on the bones indicate the creature suffered and healed from multiple large injuries during its apparently violent life, including a jaw infection, broken ribs, and what may have been a bite from another large dinosaur on Scotty's tail.

A new exhibit featuring the skeleton of Scotty is set to open at the Royal Saskatchewan Museum in May 2019.

"I think there will always be bigger discoveries to be made", said Persons.

Other reports by Click Lancashire

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