The large ceratopsian skull belongs to... Species:Kosmoceratops richardsoni Pronunciation: Cos-moe-sarah-tops rich-ard-son-i Meaning: "Richardson's ornate horned-face" What: Ceratopsid dinosaur Where: United States (Utah) When: ~ 76,400,000 B.C.E. to 75,500,000 B.C.E. Size: 4.5 meters (15 feet) long Diet: Herbivore Reconstruction: Kosmoceratops richardsoni Fun Fact: With a grand total of 15 horns and spikes on its head, this dinosaur has been nicknamed "the horny-est dinosaur ever."