New Horned Dinosaurs Had Spiked Neck Shields

Two new horned dinosaurs, one from Utah and the other from Montana, each sported distinctive facial horns and spiked neck shields, according to two separate papers published in the journal PLOS ONE. The discoveries increase the known diversity of ceratopsians, which were plant-eating horned dinos that roamed North America and Asia during the final stages of the age of dinosaurs.
 One of the new dinosaurs, Machairoceratops cronusi, lived 77 million years ago at what is now called the Grand Staircase-Escalante National Monument of southern Utah. continue