T. rex look-alike unearthed in Patagonia | Science News

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T. rex look-alike unearthed in Patagonia

Though not a close relative, Gualicho shared those puny arms

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7:00am, August 10, 2016
Gualicho

JUST LIKE REX A newly discovered dinosaur species had a T. rex’s stubby arms, and probably relied on a huge head with a mouthful of teeth for hunting. 

What had two puny arms, lived 90 million years ago and probably chowed down on other dinosaurs? (Hint: It’s not T. rex.)

A new dinosaur discovered in what is now Patagonia had the runty forelimbs of a Tyrannosaurus rex but is no cousin of the giant iconic predator, researchers report July 13 in PLOS ONE.

The new species, Gualicho shinyae, has a close relative in Africa, an analysis of fossils suggests. T. rex’s ancestors, on the other hand, came from Asia.

Gualicho is a “smaller, slimmer, trimmer version of a T. rex,” says study coauthor Peter Makovicky, a paleontologist at the Field Museum in Chicago. It probably weighed about a ton and was longer than a pickup truck.

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