Figure 4.

Divergence time estimates for speciation nodes simulated under the IM model. True values are shown with a dashed horizontal line. Points are posterior means and error bars are 95% HPD CIs, averaged over 10 replicates. The y-axis scale is ${\displaystyle \times {10}^{-3}}$ and ${\displaystyle \times {10}^{-2}}$ for when ${\displaystyle \theta =0.001}$ and ${\displaystyle \theta =0.01}$, respectively.