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Fig. 8 | BMC Evolutionary Biology

Fig. 8

From: The first known fossil Uma: ecological evolution and the origins of North American fringe-toed lizards

Fig. 8

Time-calibrated phylogenies of pleurodontan lizards from analyses with all fossil calibrations included. The two-rate analysis is the analysis with the best support overall. Acrodont outgroups are excluded. Numbers at nodes are median divergence times and purple bars represent 95% HPD intervals. Letters above nodes indicate where fossil calibrations were applied; Pl = Pleurodonta, SL = sand lizard. The time scale is in millions of years and period abbreviations above the scale are as follows: K = Cretaceous; Pa = Paleocene; E = Eocene; O = Oligocene; M = Miocene. The light-yellow period is the Pliocene and the blue period is the Pleistocene. a. One-rate analysis. b. Two-rate analysis

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