Figure 14. (A) Primate skull lengths (on a log scale) projected onto the edges and nodes of the phylogeny. The width of each edge of the tree is proportional to the observed or reconstructed value of the trait. See main text for more details. (B) A projection of the phylogeny of (A) into a space defined by time since the root (on the horizontal axis) and log skull length.

Phylogeny and data are derived from Kirk & Kay (2004). See main text for more details.