Fig. 1 in The changing course of the Amazon River in the Neogene: center stage for Neotropical diversification

Fig. 1. Geological map of northern South America. a. Geological units that formed the provenance area for the sediment input into the Amazon subaqueous delta and submarine fan (adapted from Hoorn et al., 2017). FAB, Foz do Amazonas Basin. b. Schematic longitudinal section (orange bar) of the Amazon river basin showing sedimentary basins and structural arches (adapted from Wanderley-Filho et al., 2010; Caputo, Soares 2016).