Parra, Francisco Javier Neogene palynostratigraphic zonation of the Marañon basin (Western Amazonia, Peru) - Dallas, Texas American Association of Stratigraphic Palynologists December 2019 - 42 p. ilus. Subjects--Topical Terms: PALINOLOGIAESTRATIGRAFÍANEOGENO Subjects--Geographic Terms: AMAZONIAPERU Subjects--Index Terms: CUENCA MARAÑON