Old NID
75117
"Many unknown dinosaurs await discovery in rock formations all over the world, but some new species are hiding in plain sight. One such animal, described in an in-press Cretaceous Research paper, had one of the largest heads of any dinosaur."
Check it out at Smithsonian online:

Sam Noble museum specimen, just re-named Titanoceratops. Image from Flickr user cosmicautumn.