Skull of Gryposaurus monumentensis (IMAGE) University of Utah Caption Utah Museum of Natural History researchers at the University of Utah prepared the skull of a new species of duck-billed dinosaur -- Gryposaurus monumentensis -- which was discovered in Grand Staircase-Escalante National Monument. Credit Utah Museum of Natural History 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.