Ichthyosaur fossils (IMAGE) University of Texas at Austin Caption Geosciences students from The University of Texas at Austin with ichthyosaur specimens from the Posidonia shale. Credit Rowan Martindale Usage Restrictions Include photo credit License Original 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.