Figure 6From: Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae), the Cayenne tick: phylogeography and evidence for allopatric speciationGeographical barriers and chronology. Biogeographical events which may have shaped diversification within A. cajennense and their approximate chronology. Solid red lines represent Miocene phylogenetic lineages (not to scale). Dashed lines represent dispersal and differentiation which took place either at the end of the Pliocene or during the Pleistocene.Back to article page