Baseline Caribbean (IMAGE) Smithsonian Tropical Research Institute Caption Aaron O'Dea, paleontologist at the Smithsonian Tropical Research Institute, examines marine fossils in the Dominican Republic. Credit Sean Mattson, STRI Usage Restrictions Credit: STRI License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.