Triceratops had three horns: two massive ones above its eyes, and a smaller horn on its snout. The two brow horns appear to have twisted and lengthened as a Triceratops aged, according to a 2006 study in the journal Proceedings of the Royal Society B. read more
Triceratops is the best known genus of the Ceratopsidae, a family of large, mostly North American horned dinosaurs. The exact location of Triceratops among the ceratopsians has been debated over the years. read more