image: This photo shows a trackway, or set of prints made by the same dinosaur, as it walked through a wet, sandy oasis some 190 million years ago in what is now the Coyote Buttes North area straddling the Utah-Arizona border. University of Utah geologists published a new study showing that numerous impressions at the site are dinosaur tracks, not erosion-caused potholes as was believed previously. view more
Credit: Winston Seiler, University of Utah