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The hunchback of central Spain

New dinosaur species has a hump plus possible featherlike structures on its arms

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4:39pm, September 8, 2010

A newly described carnivorous dinosaur species has a strikingly unusual hump on its back and hints of featherlike appendages on its arms. The 125 million-year-old fossil from central Spain suggests that feathers evolved in more primitive dinosaurs than previously thought, researchers say.

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