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 as well as possible fossils in Japan, and Kazakhstan) and are characterized by beaks and elaborate horns and frills. The group is divided into two subfamilies (see Taxobox).

Ceratopsids Temporal range: Late Cretaceous,
Triceratops prorsus skeleton, Natural History Museum of Los Angeles County.
Centrosaurus "nasicornus" skeleton, Palaeontological Museum Munich
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Order:	Ornithischia
Parvorder:	Coronosauria
Superfamily:	Ceratopsoidea
Family:	Ceratopsidae Marsh, 1888
Subgroups
†Ceratops? †Centrosaurinae †Chasmosaurinae
Synonyms
Agathaumidae Cope, 1891 Torosauridae Nopcsa, 1915

Ceratopsidae Media

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  I took this photo while examining the collections at the Royal Tyrrell Museum. I obtained permission from the Collections Manager before taking any photographs. Ceratopsid teeth are broadly leaf-shaped with a primary ridge running down the middle. Unlike most dinosaur teeth, they have two roots.

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  The Natural History Museum of Utah, located on the University of Utah campus at its new Rio Tinto Building home, is best known for its excellent collection of fossils (especially dinosaur fossils) as well as emphasis on the place of humans in the greater ecosystem. Skulls of horned herbivore dinosaurs.

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  Map of North America during the Late Cretaceous

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  Size comparison of several members of Ceratopsidae. The taxa included are listed here (from left to right): Left side: Pachyrhinosaurus canadensis, Centrosaurus apertus, Styracosaurus albertensis, and

Other websites

• Media related to Ceratopsidae at Wikimedia Commons
• Data related to Ceratopsidae at Wikispecies