T-Rex Was More Massive Than We Thought

Or at least heavier, scientists discover
By Kevin Spak,  Newser Staff
Posted Oct 13, 2011 1:43 PM CDT
T-Rex Was More Massive Than We Thought
A replica of the full-length skeleton of Tyrannosaurus Rex is seen at the National Science Museum in Tokyo Friday, July 1, 2011.   (AP Photo/Shuji Kajiyama)

(Newser) – You probably thought Tyrannosaurus Rex could not be any more awesome, but you’d be wrong; scientists have discovered that the terrible lizard was even bigger than previously believed, or at least heavier. Scientists examined the skeleton of “Sue,” the largest and most complete T-Rex skeleton ever unearthed, at the Field Museum of Natural History in Chicago, and discovered that she could have been up to a third heavier than we thought, and grown about twice as fast, the AFP reports.

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Old estimates had been based on scale models, and had pegged Sue at around six tons. This time scientists used a digital model, hanging simulated flesh on a laser scan of the skeleton. They concluded that Sue, if well fed, could have weighed up to 9 tons. Scale models “can magnify even minor errors,” one researcher explained. “We overcame such problems by using the actual skeletons as a starting point.” (Read more Tyrannosaurus rex stories.)

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