Figure 4: Box plots of size-adjusted craniometric measurements with the highest loadings for the first discriminant function in subsample constrained by geography.

(a) Orbital height, (b) nasal breadth, (c) orbital breadth and (d) nasoalveolar height. The line inside the box marks the median. The upper and lower hinges correspond to the 25th and 75th percentiles. The upper and lower whiskers extend to the highest and lowest values that are within 1.5 times interquartile range of the hinge. Outlying data beyond this are plotted as points. Pre-LGM (n=19), late glacial (n=25) and Early Holocene (n=31) groups.