- Ceratopsia, suborder Ceratopsia - horned dinosaurs
--1 is a kind of animal order
--1 is a member of Marginocephalia, suborder Marginocephalia, marginocephalian
--1 has members:ceratopsian, horned dinosaur; Ceratopsidae, family Ceratopsidae; genus Protoceratops; genus Triceratops; genus Styracosaurus; genus Psittacosaurus