Taxonomic studies of pollen in sediments are reference for paleoenvironmental reconstruction studies. The aim of this research is to present pollen material preserved in the peat from "Banhado Amarelo" bog (29º19'S and 50º08'W), São Francisco de Paula, RS to paleoenvironment analysis of Quaternary from the Brazilian Southern Plateau. The profile (390 cm) was collected with a Hiller Sampler. The chemical processing of the 30 extracted samples followed standard methodology, using HCl, HF, KOH and acetolysis. Light microscopy was used in the analysis. A radiocarbon dating near the base of the profile (26.080± 320 yrs BP, Beta 245611) indicated the time interval. Palynomorphs belonging to two gymnospermous and 44 angiospermous taxa are presented. Descriptions, illustrations and ecological data from the original organisms are included. The high number of taxa show the potential of this material to offers subsidies to the vegetation dynamic and climate studies from Southern Brazilian Plateau of the last millennia.
palynology; Quaternary; Southern Brazil; taxonomy
