Fig. 2.   Examples of wire frames of the CMC facets visualized with the MORPHOLOGIKA software. The range of shape variation along some of the principal components (PC) of shape that contribute significantly to discriminating Neanderthals from recent humans is illustrated in the morphing of the combined sample Procrustes mean facet shapes: the MC 3 base (1A-1C), the MC 1 base (2A-2C), and the distal capitate facets (3A-3C). Neanderthals tend to have less styloid projection, flat to convex MC 1 bases, and more parasagittally oriented capitate MC 2 facets.