A member of Ceratopsidae, a family of herbivorous dinosaurs with horns and bony frills on their heads, like Triceratops.
From Greek 'keras' (horn) + 'opsis' (appearance) + '-id' (member of). The term was coined in the late 1800s when paleontologists recognized these dinosaurs shared a distinctive horn-and-frill body plan.
Ceratopsids are one of the most successful dinosaur families ever—they thrived for over 100 million years and were finally wiped out by the same asteroid that killed T-Rex. Some scientists think their elaborate horns and frills were used like peacock feathers to attract mates and communicate with each other.
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