A plant-eating dinosaur might have been swallowed up by a collapsing sand dune some 185 million years ago in what are now Utah's red rocks. The desert disaster likely plopped the dinosaur onto its head, where it remained until being discovered by a local historian and artist in 2004... in the Comb Ridge area near Bluff, Utah, when he spotted the bony fossil protruding from the multicolored cliffs of the Navajo Sandstone, which represents the remains of a huge sand dune desert as large as the modern-day Sahara Desert. As such, the dinosaur has been named Seitaad ruessi, derived from...