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horned dinosaur



[ser-uh-top-see-uh n] /ˌsɛr əˈtɒp si ən/
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 of ceratopsian
< New Latin Ceratopsi(a) (see cerat-, -opsis, -ia) + -an Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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horned-dinosaur in Science
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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