Table 4. Age estimates and 95% confidence intervals of major nodes shown in Fig 2.

All ages in millions of years.

Clade #	Age estimate	95% CI
1	18.25	15.29–23.38
2	7.07	5.02–9.01
3	5.12	3.77–7.01
4	1.60	0.24–2.45
5	3.46	0.51–6.71
6	1.51	0.08–3.73
7	1.46	0.07–3.67