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1. Wuchiapingian: In the geologic timescale, the Wuchiapingian or Wujiapingian (from Chinese: 吴家坪; pinyin: Wújiāpíng; literally: 'Wu Family Flatland"' in the Liangshan area of Hanzhong, Shaanxi Province) is an age or stage of the Permian. It is also the lower or earlier of ... (Earth) [100%] 2024-01-06 [Wuchiapingian] [Permian geochronology]...