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This study is based on skeletons and mummies belonging to 582 individuals excavated at sites of Pueblo Viejo, Cahuachi, Estaqueria and Atarco in the Nasca valley, South Coast of Peru. Archaeological evidence distinguishes three cultural phases: Nasca (400 BC–550 AD), Wari (600–1100 AD) and Chincha (1100–1412 AD). Since the Chincha human remains were too exiguous (27 individuals), only Nasca and Wari...