family ceratopsidae การใช้

• In 1890 Marsh classified them together in the family Ceratopsidae and the order Ceratopsia.
• Fiorillo, curator of earth sciences at the Dallas Museum of Natural History, first brought his team to this remote, roadless spot on the edge of the National Petroleum Reserve above the Arctic Circle to recover the skull of a type of horned dinosaur known as a pachyrhinosaurus, or " thick-nosed dinosaur, " a member of the family Ceratopsidae.