This T. Rex Is Officially The Heaviest Ever Found, According To Researchers

“This is the rarest of rare dinosaurs."

Scientists are declaring Scotty, a Tyrannosaurus rex uncovered in Canada in 1991,  the heaviest of its kind ever found. 

Research published in The Anatomical Record estimates that the T. rex weighed 19,555 pounds, the largest ever of any T. rex. Scientists came to its weight by measuring the size and width of Scotty's hip, leg and shoulder bones, according to The New York Times 

The T. rex, whose gender is unknown (it was named after the Scotch researchers to celebrate their finding, The New York Times said), would have weighed close to 6,000 pounds more than some of the largest African elephants. Its skeleton was 65 percent complete and researchers estimate it lived to be 28, giving clues that dinosaurs may have lived longer and grown bigger than previously thought, according to National Geographic.

"This is the rarest of rare dinosaurs," Gregory Erickson, a paleobiologist from Florida State University, told The New York Times on Wednesday. "We have a full, grown adult."

Scotty's bones were estimated to be 65 million years old and it took almost 10 years for the researchers to excavate its entire body. W. Scott Persons, the lead paleontologist in the study, told The Times that Scotty's bones were damages in ways indicating battles with other animals; bite marks, impacted teeth and broken bounds. Dr. Persons could even conclude that some of the T. rex's wounds were infected.

On the whole, the researchers were thrilled and excited by their discovery.

"There is so much negativity in the world," Dr. Erickson told The New York Times. "But this is neutral. It's just fun."

Cover image via  Herschel Hoffmeyer / Shutterstock.

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