Table 5. Divergence time estimates under the model IIM₃.

Event	Time since occurrence	95% confidence intervals
		Wald	Profile likelihood
Onset of speciation $\left(t_0\right)$	3.624	(3.559, 3.689)	(3.561, 3.691)
Complete isolation $\left(t_1\right)$	1.503	(1.419, 1.588)	(1.419, 1.587)

Divergence time estimates for the data of Wang and Hey (2010), given in millions of years ago. Values shown are the converted estimates of ${\tau }_0$ and ${\tau }_1$ (see Figure 1).