Figure 2. Isotopic signatures of Luzio (arrow - this study) and mean collagen isotopic singature values from selected prehistoric and extant human populations (13/12 C, and 15/14N) plotted on top of the isotopic variation of different organism groups.

Modified from 58; 59; 60; 54; 61; 62; 63; 64; 65; 66; 67; 68– see Table 3.