MOESM2 of Individual variation of the masticatory system dominates 3D skull shape in the herbivory-adapted marsupial wombats WeisbeckerVera GuillermeThomas SpeckCruise SherrattEmma AbrahaHyab SharpAlana TerhuneClaire CollinsSimon JohnstonStephen PanagiotopoulouOlga 2019 Additional file 2. Principal Component 1 vs. 2 plots of cranial (left) and mandibular (right) shapes, showing distributions of specimens in the all-wombat (above) and hairy-nosed wombat (below) sample, in a PCA of residual coordinates from a regression of shape against size.