Fig. 12.

Plot of principal component (PC) scores against spatial packing variables with wireframe reconstructions from the lateral and dorsal view showing the shape variations represented: (a) PC4 scores against infratentorial size relative to posterior cranial base length (RIE) demonstrating frontation of the orbital margins and relative reduction in the size of the hormion as RIE increases; (b) PC7 scores against nasal septum size relative to cranial base length (IRNii) showing a slight increase in the relative height of the nasal septum, particular around foramen ceacum (Fc); (c) PC9 scores against endocranial size relative to cranial base length (IRE) demonstrating a twisting of the midline basicranium. Note that components only represent 10.1, 3.4 and 2.2% of the total shape variance, respectively. Reduced major axes regression are also shown.