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By: Wu, Wenyu. - Meng, Jin (Paleontologist) - Ye, Jie. - Ni, Xijun (Paleontologist)Edition:Publication info: New York, NY American Museum of Natural History c2004Volume: no.3461 (2004)Series:Holding Institution: American Museum of Natural History LibrarySubjects: Beavers, Fossil China Mammals, Fossil Oligocene Paleontology Propalaeocastor irtyshensis Xinjiang Uygur ZizhiquBHL Collections: