Single Fossil (IMAGE) Penn State Caption Lenticular organic microfossils in the Strelley Pool Formation (Waterfall locality), of Australia. Image shown is an optical photomicrograph of a polished thin section, taken in transmitted light. Credit Taken by Dorothy Oehler on a sample provided by Ken Sugitani (Nagoya University, Japan). Usage Restrictions Non commercial use only 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.