Stocker and Wallace (IMAGE) Virginia Tech Caption Michelle Stocker and Rachel Wallace, a former graduate student at the University of Texas at Austin, are seen excavating the caiman fossil from sandstone in January of 2011. Photo courtesy of Chris Kirk. Credit Virginia Tech Usage Restrictions Credit Virginia Tech 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.