Cliffwalkers (IMAGE) Princeton University Caption Laura Poppick , at left, and Blake Dyer, members of the research group of Princeton geoscientist Adam Maloof, measure a stratigraphic section through the Trezona Formation at Trezona Bore, West Central Flinders, South Australia, which is the area where sponge fossils were found that could be the oldest animal bodies ever discovered. Credit Photo: Adam Maloof Usage Restrictions None 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.