Friday, 14 March 2014

Mini Arctic T. Rex Relative Discovered

By Stephanie Pappas, Senior Writer | March 13, 2014 02:06pm ET

A miniature cousin of Tyrannosaurus rex once roamed the Arctic, a new fossil discovery reveals.

The new tyrannosaur (Nanuqsaurus hoglundi) had a skull length of between 23 and 27 inches (60 to 70 centimeters) when full-grown. In comparison, an adult T. rex boasted a skull about 60 inches (150 cm) long — that's a whopping 5 feet (1.5 meters).

"The 'pygmy tyrannosaur' alone is really cool because it tells us something about what the environment was like in the ancient Arctic," study researcher Anthony Fiorillo of the Perot Museum of Nature and Science in Dallas, said. "But what makes this discovery even more exciting is that Nanuqsaurus hoglundi also tells us about the biological richness of the ancient polar world during a time when the Earth was very warm compared to today."


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