A preliminary study of the peat palynology composition at T6 and T15 wells, in Águas Claras Region (RS, Brazil) revealed a very rich association composed of 17 types of pollen grains (Dicotyledoneae and Monocotyledoneae); 10 types of true te spores, 5 types of monolete spores (Pteridophyta) and 6 types of fungal spores. Pollen grains were related mainly to the Gramineae family and secondly to the Malvaceae and Compositae families. The Pteridophyta represented by trilete and monolete spores, fungal spores, and some other not identified forms, represent the main part of the association. The palynological composition could suggest watery environment or high humidity conditions in the place.
