Ceratopsidae

Ceratopsidae (sometimes spelled Ceratopidae) is a family of dinosaurs including Triceratops, Torosaurus, and Styracosaurus. All known species were quadrupedal herbivores from the Upper Cretaceous, mainly of Western North America (though Sinoceratops is known from Asia^[1] as well as possible fossils in Japan, and Kazakhstan)^[source?] and are characterized by beaks and elaborate horns and frills. The group is divided into two subfamilies (see Taxobox).

Ceratopsids Temporal range: Late Cretaceous, 83–66 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Triceratops prorsus skeleton, Natural History Museum of Los Angeles County.
Centrosaurus "nasicornus" skeleton, Palaeontological Museum Munich
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Order:	†Ornithischia
Parvorder:	†Coronosauria
Superfamily:	†Ceratopsoidea
Family:	†Ceratopsidae Marsh, 1888
Subgroups
†Ceratops? †Centrosaurinae †Chasmosaurinae
Synonyms
Agathaumidae Cope, 1891 Torosauridae Nopcsa, 1915