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Palaeontologists at the University of Alberta in Canada confirmed that the remains of the Tyranosaurus Rex found in the Saskatchewan region, Canada, belonged to theCarnivore largest predator all time.
The dinosaur, which they called Scottyhe was about 13 meters long and weighed about 8,800 kilos. It is estimated that he may have died between 28 and 30 years; he lived 66 million years, according to information on the website of the Faculty of Science of the University.
The discovery presented a week ago consists of a 65% complete skeleton, including the skull and hips, as well as some of its ribs, leg bones and tail bones.
The remains of the dinosaur include a broken and scarred rib, mbadive growth of bone between two teeth, a sign of infection and broken tail bones eventually mutilated by the bite of another tyrannosaurus.
The discovery suggests that dinosaurs were probably older and larger predators than paleontologists would have calculated based on currently available fossils.
Of the known species, T. rex is one of the best represented extinct dinosaurs, with more than 20 identified fossil individuals.
"As we find more specimens of these other theropods, we will find their Scotty – their particularly large and particularly elderly individuals," said the study's head, Scott Persons of the University of Toronto. 39; Alberta. "I would not be surprised if these animals increase the size of their bodies, overlap or even surpbad what we know about T. rex."
Scotty has been Known by paleontologists since 1991, when his bones were found at a site in Saskatchewan.
The skeleton was covered with hard sandstone which led the researchers more than a decade to take it offso that they can simply bademble the bone and understand the dimensions of the mammal.
Agree with National GeographicTyrannosaurs such as T. rex appear to have more robust structures, while other species have longer, thinner bodies. Some researchers argue that this variety can even be conserved within the T. rex species, which includes some more "thin" specimens.
No species demonstrates this enigma better than Spinosaurus, a semi-aquatic dinosaur who lived in what is now North Africa about 100 million years ago. The animal was about 50 feet long at the muzzle at the end of the tail, which would make it longer than T. rex. But when estimating the weight of Spinosaurus based only on the size of the femur, it barely reaches 1,600 kilograms.
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