Opinions from J. B. Hatcher et al. 1907

  • 'Agathaumas belongs to Ceratopsidae'
  • 'Agathaumas milo is a nomen nudum'
  • 'Agathaumas sylvestris belongs to Agathaumas'
  • 'Agathaumidae is a subjective synonym of Ceratopsidae'
  • 'Bison alticornis is recombined as Triceratops alticornis'
  • 'Centrosaurus apertus belongs to Centrosaurus'
  • 'Ceratops belongs to Ceratopsidae'
  • 'Ceratops horridus is recombined as Triceratops horridus'
  • 'Ceratops montanus belongs to Ceratops'
  • 'Ceratopsia belongs to Predentata'
  • 'Ceratopsidae belongs to Ceratopsia'
  • 'Claorhynchus belongs to Trachodontidae'
  • 'Claorhynchus trihedrus belongs to Claorhynchus'
  • 'Diceratops belongs to Ceratopsidae'
  • 'Diceratops hatcheri belongs to Diceratops'
  • 'Dysganus is a nomen nudum'
  • 'Dysganus bicarinatus is a nomen nudum'
  • 'Dysganus encaustus is a nomen nudum'
  • 'Dysganus haydenianus is a nomen nudum'
  • 'Dysganus peiganus is a nomen nudum'
  • 'Hadrosaurus paucidens is recombined as Ceratops paucidens'
  • 'Manospondylus belongs to Theropoda'
  • 'Manospondylus gigas belongs to Manospondylus'
  • 'Monoclonius belongs to Ceratopsidae'
  • 'Monoclonius belli is recombined as Ceratops belli'
  • 'Monoclonius canadensis is recombined as Ceratops canadensis'
  • 'Monoclonius crassus belongs to Monoclonius'
  • 'Monoclonius dawsoni belongs to Monoclonius'
  • 'Monoclonius fissus is a nomen nudum'
  • 'Monoclonius recurvicornis is recombined as Ceratops recurvicornis'
  • 'Monoclonius sphenocerus belongs to Monoclonius'
  • 'Polyonax is a nomen dubium'
  • 'Polyonax mortuarius is a nomen dubium'
  • 'Predentata belongs to Dinosauria'
  • 'Stegoceras belongs to Ceratopsidae'
  • 'Stegoceras validus belongs to Stegoceras'
  • 'Sterrholophus is a subjective synonym of Triceratops'
  • 'Torosaurus belongs to Ceratopsidae'
  • 'Torosaurus gladius belongs to Torosaurus'
  • 'Torosaurus latus belongs to Torosaurus'
  • 'Triceratops belongs to Ceratopsidae'
  • 'Triceratops brevicornus belongs to Triceratops'
  • 'Triceratops calicornis belongs to Triceratops'
  • 'Triceratops elatus belongs to Triceratops'
  • 'Triceratops flabellatus belongs to Triceratops'
  • 'Triceratops obtusus belongs to Triceratops'
  • 'Triceratops prorsus belongs to Triceratops'
  • 'Triceratops serratus belongs to Triceratops'
  • 'Triceratops sulcatus belongs to Triceratops'