Divergencia fenotípica en los oasis de San Pedro de Atacama, norte de Chile

in this work we analyze the phenotypic differences among cemeteries from the prehistoric population of san pedro de atacama. the sample comprises 622 individuals, corresponding to early, middle, and late periods. we worked with 37 craniometric variables. the differences among ayllus were evaluated using multivariate analysis. the results indicate a significant differentiation during the early period. the differentiation among ayllus during the middle period is reduced. during the late period, there is a moderate increase of differences among sites.