Definition of "ceratopsian" []

• Any of various herbivorous quadrupedal ornithischian dinosaurs of the suborder Ceratopsia of the late Jurassic and Cretaceous periods, having a bony frill covering the neck, a beaked mouth, and one or more horns on the head. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The fossils, found in Northwest Alberta, Canada, revealed a herd of so-called ceratopsian dinosaurs that perished together."
• "Canada, revealed a herd of so-called ceratopsian dinosaurs that perished together."
• "Coahuilaceratops is a chasmosaurine ceratopsid, often called a "ceratopsian" or "horned" dinosaur, and was almost certainly an herbivore."