ceratopsianEtymologyFrom translingual Ceratops + -ian.adjOf or belonging to the Ceratopsia suborder of dinosaurs.“Triceratops is a ceratopsian dinosaur.”nounAny member of this suborder“You know, seeing as you bring up so many groups that people claim "all look alike except for maybe x" but really aren't once you actuall look at them (passerines, hadrosaurs, ceratopsians, etc.), maybe you need to write a book on the subject. It would be a rather interesting read.”