Figure 4

Estimates of divergence time inferred from Bayesian analysis of the 13 PCGs of 110 Hypsogastropoda mitogenomes. Branch colors represent classification following Bouchet & Rocroi (2005): Littorinimorpha (blue), Neogastropoda (red), outside both clades (black). Branch lengths are proportional to time (in Mya). Node values represent posterior mean ages and green bars indicate the 95% HPD. Black asterisks indicate calibrated nodes (see methods). Outgroups have been trimmed. See Table S1 for sources.