Divergence
time
The divergence time between the North and Center-South genetic groups
was estimated at 2.81 My (1.64 – 4.17 My), near the end of the Pliocene
and the beginning of the Pleistocene. The localities within the North
genetic group (Nah and Cu) or within the Center-South genetic group
(ChlN and Coy, TP, ChlS) seem to have diverged much more recently,
towards the end of the Pleistocene (0.33 / 0.37 My ago; Fig. 5).