All of the fossils date back to 183 million years ago during the Jurassic period.

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During the Jurassic period, 165 million years ago, the area was a warm shallow sea.

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These dinosaurs lived for about 17 million years during the early Jurassic period.

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It lived during the middle to late Jurassic era in China's Liaoning province where many early birds and feathered dinosaurs roamed.

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