1. (noun) any of several four-footed herbivorous dinosaurs with enormous beaked skulls; of the late Cretaceous in North America and Mongolia

• ceratopsian

1. (noun) any of several four-footed herbivorous dinosaurs with enormous beaked skulls; of the late Cretaceous in North America and Mongolia

• ceratopsia
• suborder ceratopsia

1. (noun) any of several four-footed herbivorous dinosaurs with enormous beaked skulls; of the late Cretaceous in North America and Mongolia

• ornithischian
• ornithischian dinosaur

1. (noun) any of several four-footed herbivorous dinosaurs with enormous beaked skulls; of the late Cretaceous in North America and Mongolia

• protoceratops
• psittacosaur
• psittacosaurus
• styracosaur
• styracosaurus
• triceratops