ceratopsian

ceratopsian

[ser-uh-top-see-uhn]
noun
any of several four-footed, herbivorous dinosaurs of the suborder Ceratopsia, of the late Cretaceous Period, having an enlarged skull with a beak, a large perforated frill at the back, and, in some species, one or three horns.
Also called horned dinosaur.


Origin:
< Neo-Latin Ceratopsi(a) (see cerat-, -opsis, -ia) + -an

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American Heritage
Science Dictionary
ceratopsian   (sěr'ə-tŏp'sē-ən)  Pronunciation Key 
Any of various dinosaurs of the group Ceratopsia of the late Jurassic and Cretaceous Periods. Ceratopsians were ornithischians characterized by skulls with a parrotlike beak, a broad bony frill extending back over the neck, and often one or more horns. Most ceratopsians walked on all fours and grew to medium or large size. Triceratops was a ceratopsian.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

ceratopsian

any of a group of plant-eating dinosaurs from the Cretaceous Period (146 million to 66 million years ago) characterized by a bony frill on the back of the skull and a unique upper beak bone, called a rostral

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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