Virtual histology based on 3D X-ray microscopy imaging for non-destructive age-at-death estimation of incinerated teeth from the Tophet of Motya (Sicily, 6th century BC)

The reconstruction of infant biological history and mortality profiles provides biocultural insights into adulthood morbidity, maternal health, parental caregiving practices, and social dynamics. However, interpreting biological data from cremated infant remains in archaeological contexts can be challenging due to their often poor preservation and potential biases. Tophets, sanctuaries for distinct burial of cremated infant remains present in several Phoenician-Punic colonies in the Mediterranean area, offer an ideal case study. This study presents the first virtual histology performed in X-ray Microscopy based imaging (XRM) on a sample of crowns of cremated deciduous teeth from the Tophet of Motya (Sicily, 6th century BC). The observation of the Neonatal Line (NL) in enamel tissue offers important informations on the community demographic profile, age-at-death classes and life-histories of the buried individuals. Results are consistent with previous studies on other human remains found in the main Tophets in Mediterranean basin and highlight the importance of using non-invasive techniques to collect and analyse data that are useful for the interpretation of newborns and infants burial practices.