modern human skeletal remains (Liujiang, Liuzhou , Guangxi , China; Shandingdong Man of (but not Peking Man ) Zhoukoudian 's Upper Cave; and Minatogawa in Okinawa ) dated to between 10,175 to 33,200 years ago, and finds lack of support for the conventional designation of skeletons from this period as "Proto-Mongoloid";