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The heaviest Tyrannosaurus rex ever discovered was unveiled last week in The Anatomical Record, weighing about 19,500 pounds in its lifetime.
Paleontologists discovered "Scotty" for the first time in 1991 at a site in Saskatchewan, Canada, where they discovered about 65% of their skeleton. The dinosaur's eight-inch femur impressed the team, suggesting that both legs could have supported more than 19,500 pounds.
However, even with Scotty's leading role in the hierarchy of predatory dinosaurs, wounds such as a broken and healed rib, an infection of bone growth between two teeth and a broken coccyx, probably caused by the bite from another specimen, prove that it has not led an easy life. .
According to Scotty's calculations, calculated as at least 28 years old (an elder in the Tyrannosaurs world), the large predatory dinosaurs were much older and larger than the paleontologists who were originally supposed to rely on the data they currently have on available fossils.
"As we find more specimens of these other theropods, we will find their Scottys: their particularly large, particularly old individuals," said study leader Scott Persons. "It would not surprise me if these animals increase their body size, which may overlap or even surpass what we know about T-rex."
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