Between a rock and a hard polytomy: Rapid radiation in the rupicolous girdled lizards (Squamata: Cordylidae)

► The most comprehensive species level phylogeny of the Cordylidae to date. ► The Cordylidae now comprises two subfamilies and ten genera. ► A novel technique for recovering Likelihood decay scores is described. ► Phycas analysis reveals a rapid radiation present at the base of the Cordylinae.