Figure 1. Bilateral maxillary lateral incisor agenesis (MLIA) from the Pre-Pottery Neolithic site of Basta, southern Jordan.

The individual B37, a male, is one of ten affected adults (total n = 28). The ⁸⁷Sr/⁸⁶Sr ratios of his first and third molar match the local baseline data and are consistent with growing up at the site. Red: congenitally absent tooth, white: present tooth.