Welcome to the website for the Tropical Paleoecology Research Group – PAETRO, based at the Geosciences Department of the Fluminense Federal University, in Niterói, RJ, Brasil. We are a multi-disciplinary research group, with palaeoclimatic research objectives. We use a variety of biological and chemical techniques to explore the changing environments of the Quaternary Period (the last 2.6 million years). We are currently investigating marine and terrestrial sediments from locations around Rio de Janeiro. Please feel free to contact us if you have questions about our work.