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Triceratops, meaning "three-horned face", because it had three horns was a ceratopsid herbivorous dinosaur genus from the Latest Cretaceous period of what is now North America.

It lived at around the same time and place as Tyrannosaurus, Ankylosaurus and another well-known ceratopsid, Torosaurus.

Although no complete skeleton has been found, it has been estimated that Triceratops was about 9 m (30 ft) long, 3 m (10 ft) tall, and weighed around 5,400 kg (12,000 lb).

The distinctive skull of Triceratops had a single horn on the snout, above the nostrils and a pair of horns approximately 1 m (3 ft, 4 in) long, above the eyes.

The rear of the skull bore a relatively short bony frill.

Most other frilled dinosaurs had large fenestrae in their frills, while the frill of Triceratops is noticeably solid.

Note:   The above text is excerpted from the Wikipedia article "Triceratops", which has been released under the GNU Free Documentation License.
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