Possibly the Earliest Known Bird: The Aurornis Xui

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...The new fossil, which the team has named Aurornis xui ( Aurornis meaning "dawn bird," and xui in honor of Xing Xu's contributions to bird origins), was found in Liaoning province's Tiaojishan Formation, in sediments dated about 160 million years ago, according to the Nature report. That's around the time that dinosaurs are believed to have started evolving into birds...
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