Clavicular facet of the coracoclavicular joint: Analysis in modern skeletons of the mapuche indigenous individuals

Mapuche ethnic group showed the highest frequency of osteological material reported to date between native South American and global population. Their presence may not be related to a geographical migration, but to other causes such as genetic, environmental, or evolutionary adaptation factors. The study of CCJ as anthropological trait must be addressed through direct observation in osteological material, because radiological studies may underestimate its frequency.