Fig. 2: Morphospaces of labyrinth shape corrected for size and aspect ratio (N = 138) and allometric and braincase aspect ratio effects on labyrinth shape. | Nature Communications

Fig. 2: Morphospaces of labyrinth shape corrected for size and aspect ratio (N = 138) and allometric and braincase aspect ratio effects on labyrinth shape.

From: Independent origin of large labyrinth size in turtles

Fig. 2

a PC1 vs. PC2 of labyrinth shape corrected for skull size allometry and braincase aspect ratio (b) PC1 vs. PC3 of labyrinth shape corrected for skull size allometry and braincase aspect ratio. Proportions of total shape variance explained by PC axes is given in brackets. Dashed ovals in a and b show overlapping ecologies. c Plots of skull box volume regression scores against skull box volume, using the formula shape ~ skull box volume + braincase aspect ratio’. d Plots of braincase aspect ratio regression scores against skull box volume. e Deformation plots at large (red) and small (gray) skull sizes. f Deformation plots at large and small brain aspect ratios. For a version with taxon point labels, see Supplementary Fig. 9. Source data are provided with this paper.

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