World's largest T. rex held in Regina may have parents 70% taller |  Globalnews.ca

World’s largest T. rex held in Regina may have parents 70% taller | Globalnews.ca

For many years, Saskatchewan has been proud to be home to the largest Tyrannosaurus rex in the world.

Nicknamed Scotty, this once huge animal roamed the earth around 66 million years ago. Weighing around 19,555 pounds, the equivalent of four pickup trucks, and measuring nearly 42 feet long.

Scotty took more than two decades to fully excavate and analyze and was named the largest member of his species ever found, as well as the longest-lived T. rex, according to the fossil record.

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A new study, however, suggests that Scotty may not hold those titles for much longer.

Paleontologists at the Canadian Museum of Nature in Ottawa have estimated that the largest T. rex could weigh around 33,000 pounds, making it heavier than an average school bus, which weighs around 24,000 pounds.

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Researchers were trying to answer the question: how big could a Tyrannosaurus rex actually grow?


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Scientists are studying the world’s largest T. rex to better understand dinosaurs and evolution


The scientists first looked at the fossil record, which shows that around 2.5 billion T. rex once roamed the earth. However, only 32 adult fossils have been found, giving scientists a limited amount of data for research.

Co-authors David Hone and Jordan Mallon created two models of what different T. rex body types might look like based on sexual dimorphism.

Using this data, scientists were able to model the growth curve of T. rex throughout its life and estimate how tall an adult might have been.

If true in the future, it makes Scotty about 70% smaller than what could be the largest of his kind.

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The scientists presented their findings Nov. 5 at the Society of Vertebrate Paleontology’s annual conference in Toronto.

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For those at the Royal Saskatchewan Museum, which Scotty calls home, the research is interesting, but for now it retains the title of the largest T. rex ever discovered.

“It’s one of those weird situations where it’s not really based on a specimen,” said Ryan McKellar, curator of paleontology at the Royal Saskatchewan Museum. “It’s more of a hypothetical idea.

“There was a conference a few weeks ago where people suggested that if a T. rex kept growing and growing, it could potentially grow to sizes larger than Scotty. But for now, Scotty is still the largest known specimen. So it’s more of a difference between the hypothetical growth curve and what we actually have for fossil material. »

And while Scotty is the greatest at the moment, McKellar is excited about the future and what might be uncovered.

“Part of what makes the hunt for additional specimens down the road more exciting is that there could be larger, better-preserved material in Saskatchewan and the northern United States,” he said. he declares.

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