A smaller, earlier horned dinosaur that helps show the transition toward the larger, more elaborate ceratopsids. It did not yet have the full giant frill-and-horn look of Triceratops, but it sits close to that later line in the broader horned-dinosaur story. Lived from about 90 to 89 million years ago.
Zuniceratops
Lived from about 90 to 89 million years ago.
Triceratops ancestor
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