Table 1 Summary statistics for null, worst, and best history models tested for each cranial region.

Values represent the overall amount of among-group morphological distance explained (R2), with P values (α = 0.05) in parentheses.

Worst modelNull modelBest model
Cranium0.211 (0.841)0.251 (0.272)0.348 (<0.0001)
Vault0.215 (0.931)0.256 (0.396)0.389 (<0.0001)
Face0.291 (0.886)0.341 (0.298)0.438 (<0.0001)
Basicranium0.155 (0.836)0.205 (0.279)0.265 (0.015)