- ceratopsian, horned dinosaur - any of several four-footed herbivorous horned dinosaurs with enormous beaked skulls; of the late Cretaceous in North America and Mongolia
--1 is a kind of ornithischian, ornithischian dinosaur
--1 is a member of Ceratopsia, suborder Ceratopsia
--1 has particulars:protoceratops; triceratops; styracosaur, styracosaurus; psittacosaur, psittacosaurus