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Table 2 Summary of divergence times from concatenated analyses for the sand lizard, Uma, western Uma, and eastern Uma crown clades

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

One-rate analyses

 

 Model

Sand lizard clade

Uma

Western Uma

Eastern Uma

 All fossil calibrations

23.14 [18.31, 28.29]

16.07 [12.13, 20.36]

5.08 [3.47, 6.93]

7.02 [4.76, 9.54]

 aNo sand lizard calibration

23.56 [18.70, 29.25]

16.32 [12.29, 20.75]

5.13 [3.53, 7.01]

7.09 [4.84, 9.71]

 All fossil calibrations

 + Pleistocene calibration

18.51 [11.98, 25.80]

12.34 [7.10, 18.39]

1.70 [0.95, 2.64]

5.39 [2.35, 9.07]

Two-rate analyses

 

 Model

Sand lizard clade

Uma

Western Uma

Eastern Uma

  a All fossil calibrations

22.19 [17.51, 27.43]

15.46 [10.67, 20.38]

4.70 [2.86, 7.12]

6.71 [3.80, 10.16]

 No sand lizard calibration

22.53 [17.57, 27.99]

15.63 [10.74, 20.92]

4.68 [2.83, 7.20]

6.79 [3.79, 10.31]

 All fossil calibrations

 + Pleistocene calibration

18.81 [14.10, 23.92]

12.66 [7.38, 18.38]

2.00 [1.33, 2.77]

5.41 [2.10, 9.62]

  1. The two-rate analysis with all fossil calibrations (in bold) is the overall best supported analysis, based on the Bayes Factor analyses (see below). The best supported analysis for each clock rate model is denoted by a a. Numbers outside of brackets are median divergence times and numbers in brackets indicate the 95% highest posterior density (HPD) intervals