Fig. 1From: Climatic and topographic changes since the Miocene influenced the diversification and biogeography of the tent tortoise (Psammobates tentorius) species complex in Southern AfricaMap showing the geographic distribution of the seven clades throughout their range. The “Biological Corridor” at the intergradation zone between Ptt-B and Pv-B is shown. The Orange River between South Africa and Namibia is indicated with a blue line. Major mountain barriers are indicated. The seven geographic regions retrieved from the SAMOVA analysis are indicated as A–G. Map originally developed by Z. ZhaoBack to article page