Death Trap (IMAGE) University of Chicago Caption While approaching the edge of a lake in what is today the Gobi Desert of Inner Mongolia, a herd of young Sinornithomimus dinosaurs suddenly finds itself hopelessly trapped in mud some 90 million years ago. Credit Art by Todd Marshall, courtesy of Project Exploration Usage Restrictions This image may be used by news organizations in reports stemming from the U. of Chicago/National Geographic Society news release of March 16, 2009, regarding Paul Sereno's paleontological research. 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.