Kalmar "Genus Triceratops" tana nufin rukuni na dinosaurs masu tsire-tsire waɗanda suka rayu a ƙarshen lokacin Cretaceous, kimanin shekaru 68 zuwa 65 da suka wuce. Triceratops wani nau'in dinosaur ne na ceratopsid, wanda ke da ƙahonin fuska uku da kuma ƙashin ƙashi a bayan kwanyar su. Sunan "Triceratops" ya fito ne daga kalmomin Helenanci "tri-" ma'ana uku, "kerat-" ma'ana ƙaho, da "-ops" ma'ana fuska, wanda tare yana nufin "fuska mai ƙaho uku."