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New research says Tyrannosaurus is actually three species--rex, imperator
Updated : 4 years, 4 months ago IST
Washington [US], March 6 (ANI): According to a new analysis of Tyrannosaurus skeletal remains revealed physical differences in the femur, other bones and dental structures across specimens that could suggest Tyrannosaurus rex specimens need to be re-categorised into three distinct groups or
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