<i>S. sullivani</i> on the Attack (IMAGE) University of Pennsylvania Caption Two Saurornitholestes sullivani raptors attacks a subadult hadrosaur Parasaurolophus tubicen. Credit Illustration by Mary P. Wiliams Usage Restrictions In context of reporting 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.