
The stunning remains of a "four-winged" dinosaur have confirmed that birds owe their ancestry to two-footed dinosaurs that lived millions of years ago, the world's most famous fossil-hunter said.
Xing Xu of the Chinese Academy of Science in Beijing is staking the claim thanks to an astonishingly-preserved fossil of a bird-like dinosaur called Anchiornis huxleyi.
Until now, A. huxleyi was thought to be a primitive bird. It was presumed to have been a near-contemporary of Archaeopteryx, the first recognised bird, which flew around 150 million years ago.
But these opinions were based on an incomplete fossil.
The new, nearly-complete specimen gives a different picture, suggesting that A. huxleyi is millions of years older than Archaeopteryx and has both dinosaur and avian features.
It is the long-sought evidence that proves birds descended from theropod dinosaurs, argues Xu.
Good link, but you're a little behind the times. PBS did a NOVA special on this a year or more ago.
Watch the whole thing here:
http://www.pbs.org/wgbh/nova/microraptor/program.html
PBS absolutely rules! Support public broadcasting!!!
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