Triceratops (三角龍) - an extinct genus of herbivorous chasmosaurine (開角龍亞科) ceratopsid (角龍科) dinosaur that first appeared during the late Maastrichtian stage (馬斯特里赫特期) of the Late Cretaceous (白堊紀) period, about 68 million years ago in what is now North America.
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