YOU HailuInstitute of Geology, Chinese Academy of Geological Sciences, Baiwanzhuang Road, Beijing, E-mail: hyou@sas. upenn. eduand DONG ZhimingInstitute of Vertebrate Paleontology, Paleoanthropology, Chinese Academy of Sciences, Beijing Wang Si''''en, Xie Guanglian.2003. A New Protoceratopsid (Dinosauria: Neoceratopsia) from the Late Cretaceous of Inner Mongolia, China[J]. Acta Geologica Sinica(),77(3):
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