Figure 2.

(a) Timetrees of gliding geckos and other vertebrates. The gecko timetree is based on the combined dataset, with support values (ML bootstrap/Bayesian PP/MP bootstrap) and 95% credibility intervals of age indicated for key nodes. For other vertebrates, schematics of stem and crown ages of gliding taxa are depicted, with 95% credibility intervals of age; corresponding full timetrees are in the electronic supplementary material. (b) Posterior probability distributions for gliding vertebrate stem ages falling inside the 50–20 Ma temporal interval. (c) Posterior probabilities for the number of gliding vertebrate stem ages (of eight total) falling within the 50–20 Ma temporal interval.