BBC NEWS | Asia-Pacific | Bird-like dinosaur forces rethink: "Bird-like dinosaur forces rethink
The 90 million-year-old dinosaur was excavated from a site in central Argentina
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A rooster-sized dinosaur with a long, slender snout and wing-like limbs is forcing a rethink on bird evolution.
The 90 million-year-old reptile belongs to the same sickle-clawed group of dinosaurs as Velociraptor and feathered dinosaurs from China.
Buitreraptor gonzalezorum, from the Nequén Basin in central Argentina may provide tantalising evidence that powered flight evolved twice.
Details of the discovery appear in the academic journal Nature."
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