presentation, part 1 - Molecular Evolution

1! 2! 3!10 mya (+1.8)1! 2! 3!9.2 mya (+1.2)1! 2! 3! 4!Phylogenies of threehypothetical vertebrategroups are comparedwith respect to barrier.Ancestral divergencefor each is estimated tobe 8-12 mya, implyingthat feature has beenbiogeographic barriersince that time.10.8 mya (+2)A. "