Wednesday, 22 May, 2019

Largest Tyrannosaurus Rex Ever Found Confirmed by Canadian Scientists

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																	World’s largest Tyrannosaurus found in Canada					
								
			
	
		Mike Wehner			@MikeWehner Science World’s largest Tyrannosaurus found in Canada Mike Wehner @MikeWehner
Sandy Nunez | 30 March, 2019, 12:26

The enormous predator lived about 66 million years ago, and despite having made it to a relatively old age, dying in its early 30s, researchers estimated it suffered some bumps and bruises along the way.

When the fossils were discovered, the scientists wanted to celebrate with a toast.

Both, however, lived to at least 28 years old - seniors in terms of tyrannosaurs - but Scott Persons, the lead researcher, said Scotty could well be into his early 30s.

According to the authors of the new study, Scotty was one of the rare T. rexes in the fossil record that actually reached full maturity, which likely contributed to its record-breaking weight.

Back in the 1990s, it took almost a decade for paleontologists in Canada to extricate the massive Tyrannosaurus rex skeleton known as "Scotty" from its solid sandstone casing. "And it was a violent one", Dr Persons said.

Why it matters: "The find suggests that large predatory dinosaurs probably got older and bigger than paleontologists would have surmised based on now available fossils".

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. rex. So, Scotty was collected in parts from the dig site and brought back to the lab for examination during the rest of the year. Experts can count the number of rings to determine the creature's age, and also compare the spaces between rings to find out how fast the dinosaur was growing at different ages.

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The femur was 8-inches across giving insight into the weight of the dino when living.

Now, for the first time, researchers from the University of Alberta have taken Scotty's detailed and accurate measurements.

"By Tyrannosaurus standards, it had an unusually long life".

A T. rex specimen found in Canada is helping researchers nail down that last point. The only drink they had on hand, however, was scotch - hence Scotty's nickname. Scotty suffered "numerous severe injuries", including broken ribs, shattered tailbones and an infected jaw, according to the study.

But Scotty has other claims to fame.

"Riddled across the skeleton are pathologies-spots where scarred bone records large injuries".

They added that the "relative scarcity of other equally large and mature T. rex specimens" suggests that these beasts tended to die before they passed the 8.8-ton (8 metric tons) threshold.