The Three-Horned Dinosaur is a type of dinosaur that is most commonly known as TRICERATOPS, which has 11 letters. TRICERATOPS was a herbivorous dinosaur that lived during the late Cretaceous period and had three horns on its head. It was one of the last non-avian dinosaurs to exist before the mass extinction event that wiped out the majority of the species. Its body was heavily armored with bony plates and it had a large frill around its neck. TRICERATOPS is one of the most recognizable dinosaurs due to its unique features.