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Discovery of new Tiktaalik roseae fossils reveals key link in evolution of hind limbs（图）
Tiktaalik roseae fossils evolution
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2014/3/17
The discovery of well-preserved pelves and a partial pelvic fin from Tiktaalik roseae, a 375 million-year-old transitional species between fish and the first legged animals, reveals that the evolution...