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T-Rex May Have Been 70% Bigger Than Previously Believed

CC0 / / Dinosaur
Dinosaur - Sputnik International, 1920, 27.07.2024
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A team of researchers took into consideration factors including population size, growth rate, lifespan, and the incomplete nature of the fossil record.
According to a new study, the king of dinosaurs may have been 70% heavier and 25% longer than previously thought.
Paleontologists from the Canadian Museum of Nature in Ottawa, Ontario, said the carnivorous T-Rex could have weighed up to 33,000 pounds (15,000 kilograms), which would make it 35% heavier than an average school bus.
In an effort to determine how big the dinosaur could get, scientists first examined the fossil record, which shows that a total of about 2.5 billion T-Rex once lived on Earth. But just 32 adult fossils have ever been found.
The largest T-Rex on record is a specimen named “Scotty”, which weighed an estimated 19,555 lbs (8,870 kg) when it was alive. But the largest T-Rex “would have been about 70% bigger” than Scotty, said study co-author Jordan Mallon, a research scientist and head of palaeobiology at the Canadian Museum of Nature.

“Our study suggests that, for big fossil animals like T-Rex, we really have no idea from the fossil record about the absolute sizes they might have reached,” said Mallon, whose team also took into consideration other factors including population size, growth rate, lifespan, and the incomplete nature of the fossil record.

“It's fun to think about a 15 tonne T-Rex, but the implications are also interesting from a bio-mechanical or ecological perspective," he said.
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