Fig. S3 from Differential influences of allometry, phylogeny and environment on the rostral shape diversity of extinct South American notoungulates

(a) Regression of the centroid size on the allometric vector shape and associated virtual deformations with landmarks. (d) Principal component analyses for crania of notoungulates with shape data corrected for allometry, and associated virtual deformations on the extreme sides of each axis. Yellow and violet code for increases and decreases in surface area, respectively. For abbreviations see figure 1, and * characterizes Paleogene forms.