The divergence time of
with 95% highest posterior-probability density. Numbers above branches refer to divergence times. The C. harmani-C. crossoptilon and C. mantchuricum-C. auritum splits occurred at 3.21 Mya (95% HPD = 2.36-4.23 Mya). The divergence time for C. harmani and C. crossoptilon to be approximately 0.11 Mya (95% HPD = 0.05-0.18 Mya) and for C. mantchuricum and C. auritum, 0.18 Mya (95% HPD = 0.1-0.29 Mya).