Ceratops

Ceratops (meaning "horn face") is a dubious genus of ceratopsian dinosaur which lived during the Late Cretaceous. Its fossils have been found in Montana. Although poorly known, Ceratops is important in the history of dinosaurs, since it is the type species for which both Ceratopsia and Ceratopsidae are named. Unfortunately, the material is too poor to be confidently referred to better specimens, and Ceratops is considered a nomen dubium.