Dinosaur Dance Floor Locator Map (IMAGE) University of Utah Caption A dinosaur trample surface (marked by the star) has been identified on the Arizona side of that state's border with Utah. Geologists from the University of Utah determined the numerous impressions at the site are dinosaur tracks, not erosion features. Credit Winston Seiler, University of Utah 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.