Opinions from O. Lambert et al. 2001

  • 'Archaeoceratops belongs to Neoceratopsia'
  • 'Archaeoceratops oshimai belongs to Archaeoceratops'
  • 'Asiaceratops belongs to Neoceratopsia'
  • 'Asiaceratops salsopaludalis belongs to Asiaceratops'
  • 'Bagaceratops belongs to Protoceratopsidae'
  • 'Bagaceratops rozhdestvenskyi belongs to Bagaceratops'
  • 'Breviceratops is a subjective synonym of Bagaceratops'
  • 'Ceratopsia belongs to Marginocephalia'
  • 'Ceratopsidae belongs to Ceratopsoidea'
  • 'Ceratopsoidea belongs to Neoceratopsia'
  • 'Chaoyangsaurus youngi belongs to Chaoyangsaurus'
  • 'Graciliceratops belongs to Neoceratopsia'
  • 'Graciliceratops mongoliensis belongs to Graciliceratops'
  • 'Marginocephalia belongs to Ornithischia'
  • 'Microceratops is a nomen dubium'
  • 'Microceratops gobiensis is a nomen dubium'
  • 'Microceratops sulcidens is a nomen dubium'
  • 'Montanoceratops belongs to Ceratopsoidea'
  • 'Neoceratopsia belongs to Ceratopsia'
  • 'Oviraptor philoceratops belongs to Oviraptor'
  • 'Protoceratops belongs to Protoceratopsidae'
  • 'Protoceratops andrewsi belongs to Protoceratops'
  • 'Protoceratops hellenikorhinus belongs to Protoceratops'
  • 'Breviceratops kozlowskii is a subjective synonym of Bagaceratops rozhdestvenskyi'
  • 'Protoceratopsidae belongs to Neoceratopsia'
  • 'Saurornithoides mongoliensis belongs to Saurornithoides'
  • 'Turanoceratops belongs to Neoceratopsia'
  • 'Turanoceratops tardabilis belongs to Turanoceratops'
  • 'Udanoceratops belongs to Neoceratopsia'
  • 'Udanoceratops tschizhovi belongs to Udanoceratops'
  • 'Velociraptor mongoliensis belongs to Velociraptor'