Palynostratigraphy and sedimentary facies of Middle Miocene fluvial deposits of the Amazonas Basin, Brazil

► Present the first Middle Miocene palynological data in the Amazonas Basin. ► New correlations perception for the North South American basins Tertiary deposits. ► New insights for paleogeographic analysis for the Amazonas Basin Tertiary strata. ► Increasing information regarding the transcontinentalization of the Amazonas River.