19/05/2016 A new species of horned dinosaur is discovered in southern Utah
New Dinosaur Species Called Machairoceratops
DFG- Allosaurus vs. Machairoceratops
Bizarre Dinosaur with Head Spikes Unearthed in Utah | Prehistoric News
A remarkable new species of horned dinosaur was unearthed in Grand Staircase-Escalante National Monument, southern Utah. The huge plant-eater inhabited Laramidia, a landmass formed when a shallow sea flooded the central region of North America, isolating western and eastern portions for millions of years during the Late Cretaceous Period.