Comparison of whole mitochondrial genome sequences of northern and southern white rhinoceroses (Ceratotherium simum): the conservation consequences of species definitions

Table 3 Time to the most recent common ancestor (Tmrca) of white rhinoceros estimated in BEAST using five separate calibrations

Calibration set	Tmrca of white rhinoceros, ×10⁻⁶ years	SEM	95 % confidence interval	ESS^a	Ucld.stdev^b
A/C-60	0.79	0.0017	0.63–0.95	2252	0.12
E/R-55	0.97	0.0048	0.66–1.30	1257	0.15
F/C-52	0.72	0.0046	0.48–0.97	735	0.17
C/P-48	0.46	0.0034	0.30–0.62	555	0.15
O/P-30	0.67	0.0048	0.43–0.91	664	0.19

^aEstimated sample size (a measure of the number of effectively independent draws from the posterior distribution)
^bThe standard deviation of the uncorrelated lognormal relaxed clock, a measure of branch rate heterogeneity