Ceratopsids are herbivorous Ornitopods dinosaurs. This group includes some famous dinosaurs like Triceratops, and others such as Agathaumas, Protoceratops, and Torosaurus. Ceratopsids evolved in Asia and migrated to North America through a landbridge. Agathaumas-dinosaur.jpg
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| - Ceratopsids are herbivorous Ornitopods dinosaurs. This group includes some famous dinosaurs like Triceratops, and others such as Agathaumas, Protoceratops, and Torosaurus. Ceratopsids evolved in Asia and migrated to North America through a landbridge. Agathaumas-dinosaur.jpg
- Early members of the ceratopsian group, such as Psittacosaurus, were small bipedal animals. Later members, including ceratopsids like Centrosaurus and Triceratops, became very large quadrupeds and developed elaborate facial horns and frills extending over the neck. While these frills might have served to protect the vulnerable neck from predators, they may also have been used for display, thermoregulation, the attachment of large neck and chewing muscles or some combination of the above. Ceratopsians ranged in size from 1 meter (3 ft) and 23 kilograms (50 lb) to over 9 meters (30 ft) and 5,400 kg (12,000 lb).
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| - Ceratopsids are herbivorous Ornitopods dinosaurs. This group includes some famous dinosaurs like Triceratops, and others such as Agathaumas, Protoceratops, and Torosaurus. Ceratopsids evolved in Asia and migrated to North America through a landbridge. Agathaumas-dinosaur.jpg
- Early members of the ceratopsian group, such as Psittacosaurus, were small bipedal animals. Later members, including ceratopsids like Centrosaurus and Triceratops, became very large quadrupeds and developed elaborate facial horns and frills extending over the neck. While these frills might have served to protect the vulnerable neck from predators, they may also have been used for display, thermoregulation, the attachment of large neck and chewing muscles or some combination of the above. Ceratopsians ranged in size from 1 meter (3 ft) and 23 kilograms (50 lb) to over 9 meters (30 ft) and 5,400 kg (12,000 lb). Triceratops is by far the best-known ceratopsian to the general public. It is traditional for ceratopsian genus names to end in "-ceratops", although this is not always the case. One of the first named genera was Ceratops itself, which lent its name to the group, although it is considered a nomen dubium today as its fossil remains have no distinguishing characteristics that are not also found in other ceratopsians.
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