Fig. 3 in Historical biogeography of fishes from coastal basins of Maranhão State, northeastern Brazil

Fig. 3. Reconstruction of paleodrainages area of Maranhão. a. 35 m above the modern level. b. 122 m below the modern level. Note that all modern rivers flowed through three paleodrainages at the LGM (-122 m). Note that similarities of the fish faunas can be explained in part by past connection among the basins. These paleo-connections also justify how basins with low species richness were combined for the analyses of historical biogeography.