Palaeoenvironments and Taphonomy of Bird Fossils(Early Cretaceous) from Jehol Biota in Western Liaon

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Jehol Biota in western Liaoning and northern Hebei has been a hot topic of global concern,a large number of exquisite fossils were found in Yixian group Sihetun,such as Sinosauropteryx,Protarchaeopteryx, Caudipteryx and Confuciusornis.Scientists consid
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