'Shieldcroc' Discovery (VIDEO) University of Missouri-Columbia This video is under embargo. Please login to access this video. Caption MU assistant professor Casey Holliday nicknamed Aegisuchus witmeri “Shieldcroc” because of its thick skinned shield. Credit Nathan Hurst/University of Missouri 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.