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Paleontologists identify the world's largest tyrannosaurus rex



Meet "Scotty", which at 8,870 kg (19,400 pounds) is the largest Tyrannosaurus rex ever excavated.

Scotty is "rex of the rexes", according to the University of Alberta paleontologist Scott Persons, the lead author of a new study on the example published in The Anatomical Record .

"This largest [T-Rex] as far as body conditions are concerned," people said in a motherboard phone call. "Some individual tyrannosaurs, like humans, tend to be tall or long or long, while others tend to be more robust and thicker. They are the thicker individuals that are ultimately more massive."

" It's a bit like comparing a basketball player to a professional football player, "he added. "Our animals are determined in the rugged football player category."

Scotty had probably entered the 30s when it died 66 million years ago, making it older than any other known T-Rex. But even though it lived to an advanced age, Scotty was no stranger to injury; The fossilized bones show that the joint broke the ribs, an infected jaw and a possible bite of a rival tyrannosaur on the tail.

"Tyrannosaurs were no longer living dinosaurs in any way," people said. "These are animals that grew fast and died quite young." Based on known T-rex fossils, tyrannosaurs who made it to adulthood lived between 20 and 30 years.

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People with the cast of "Scotty." Image: Scott Persons [19659009] Scotty's remains were first discovered in 1991 in Saskatchewan, Canada, by a team that included Canadian paleontology luminary Phil Currie. Currie, who is also based at the University of Alberta, is co-authoring the paper with Florida State University Palaeontologist Gregory M. Erickson, who noted Scotty's age.

The dinosaur is nicknamed after the festive bottle of scotch whiskey resumed after the crew found the fossils (the official name is RSM P2523.8).

The rock in which the dinosaur was preserved was particularly harsh, so a new millennium had arrived on time S cotty was removed from its sandstone grave.

Another decade passed before T-rex body conditions and age were determined.

"The way we estimate that Scotty is greater is based on different proportions of the skeleton," people explained. "The edge of the femur, the upper leg, the shoulder width, the surface of some of the glands – all of these indicate a very ugly, massive tyrannosaur."

Scotty probably weighed approx. 400kg more than Sue T-Rex, the largest T-Rex before Scotty was discovered, currently in the Field Museum in Chicago.

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The surviving fossils of "Scotty." Image: Scott Persons

Having said that, Sue has remained the most complete, well-known T-Rex, with almost all its body parts restored. Scotty, on the other hand, is just over 60 percent complete. , it is not known whether Sue or Scotty were male or female tyrannosaurs.)

In addition to providing an upper limit on the T-Rex scale, Scotty could provide insights on other dinosaur species. Most dinosaurs are only known from a few sharp fossils that leave paleontologists with little information about their sizes and ages. Scotty's record-bearing lifespan and longevity provide a "single point of data", people said, and it can be replicated to other dinosaurs in future discoveries. 19659019] Read more: Tyrannosaur snouts may have been more sensitive than human fingertips

"Scotty suggests that all other dinosaurs we know of are likely to increase in terms of maximum body size," People told motherboard. "

Currently, however, the team is just happy to release such lengthy details about the colossal dinosaur." It's very exciting, "people said." Keeping some of Scotty's bones in your hands is an incredible thing. "

Scotty will be featured in an upcoming exhibition at the Royal Saskatchewan Museum in May 2019.

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