WWI Trench Where Fossils Were Found (IMAGE) Ohio State University Caption A dark patch of rock on the left marks the Rauchkofel Boden trench, dug in the Cardiola Formation of the Austrian Alps during World War I. Many fossils have been found at the site. Credit Photo courtesy of Annalisa Ferretti, University of Modena and Reggio Emilia. 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.