Fig. 2. Geographic range evolution in the genus Pteronotus. (a) Current distribution of genus Pteronotus (coloured map) with biogeographical areas scored for species presence/absence matrix. ME = Mexico; CA = Central America; CC = Caribean Coast of South America; LA = Lesser Antilles; AM = Amazon; CE = Brazilian Dry Diagonal: Cerrado and Caatinga; AF = Northern Atlantic Forest; JC = Jamaica and Cuba; HI = Hispaniola; PR = Puerto Rico. (b) Geographic range estimates with the highest marginal probabilities for Pteronotus ancestral nodes according to DIVAj model. Dashed-line borders indicate area combinations with probabilities smaller than 10% in the model, but still being the most probable state in that node among the 638 possible combinations. Curved arrows represent splits in the ancestral geographic ranges explained by vicariance; many of them were succeeded by anagenetic dispersal/extinction events, as highlighted by the linear black arrows; Dotted-line straight arrows highlight shifts in nodes geographic ranges due to dispersal jumps.