SUPPLEMENTARY APPENDIX 4. Estimates of node times from total-evidence dating in our core analyses.

‘Slope’ denotes the slope of the line of best fit and ‘R’ denotes Pearson’s correlation coefficient. (a) Scatterplots showing the gamma statistics for the maximum-clade-credibility trees compared with those of the true trees. (b) Scatterplots showing the stemminess ranks for the maximum-clade-credibility trees compared with those of the true trees. In (a) and (b), each panel shows the results from a different models of among-lineage rate variation for the molecular and morphological data: strict clock and strict clock (SS); strict clock and moderate rate variation (SM); and moderate rate variation and high rate variation (MH). (c) Posterior medians in each maximum-clade-credibility tree for the youngest and median nodes defined in the corresponding true topology, plotted against the true values. Dates correspond to trees including fossil taxa, whereas those in (d) correspond to trees excluding fossil taxa.