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pro·to·cer·a·tops | \ ˌprō-(ˌ)tō-ˈser-ə-ˌtäps 
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\Definition of protoceratops
: any of a genus (Protoceratops) of small herbivorous ceratopsian dinosaurs of the Late Cretaceous that lacked horns
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Time Traveler for protoceratops
The first known use of protoceratops was in 1979
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