Identifying biological affinities of Holocene northern Iberian populations through the inner structures of the upper first molars

Abstract Neolithisation was a relatively fast process that affected both the interior and coastal zones of Iberian Peninsula, but it also heterogeneous had diverse impacts on genomic cultural diversity. In Late Neolithic–Chalcolithic, change in funerary practices, material trade networks occurred, heterogeneity decreased, suggesting human mobility genetic admixture between different populations. Dental morphology has emerged as an effective tool for understanding variability biological affinities among ancient But, surprisingly, less attention been paid to morphological traits inner dental tissues Holocene European populations their utility study population dynamics. We applied 3D geometric morphometric methods enamel-dentine junction (EDJ) first upper molars explore north-eastern Peninsula from Neolithic–Chalcolithic Bronze Age. Our results show EDJ morphologies northern were generally homogeneous, indicative result exchange networks. However, differences remains Can Sadurní site are distant with nearby Additionally, hypocone associated dentine area position trigon horns relative each other occlusal surface best describe found samples studied. This highlights proxy dynamic studies when paleogenomic absent.