Opinions from A. A. Farke 2011
- 'Anchiceratops belongs to Chasmosaurinae'
- 'Arrhinoceratops belongs to Chasmosaurinae'
- 'Arrhinoceratops utahensis is recombined as Torosaurus utahensis'
- 'Centrosaurus apertus belongs to Centrosaurus'
- 'Ceratops horridus is recombined as Triceratops horridus'
- 'Chasmosaurus belongs to Chasmosaurinae'
- 'Chasmosaurus mariscalensis is recombined as Agujaceratops mariscalensis'
- 'Coahuilaceratops magnacuerna belongs to Coahuilaceratops'
- 'Diabloceratops belongs to Centrosaurinae'
- 'Diabloceratops eatoni belongs to Diabloceratops'
- 'Diceratops is replaced by Nedoceratops'
- 'Diceratops hatcheri is recombined as Nedoceratops hatcheri'
- 'Diceratus is a subjective synonym of Nedoceratops'
- 'Einiosaurus belongs to Chasmosaurinae'
- 'Einiosaurus procurvicornis belongs to Einiosaurus'
- 'Mojoceratops belongs to Chasmosaurinae'
- 'Mojoceratops perifania belongs to Mojoceratops'
- 'Monoclonius belli is recombined as Chasmosaurus belli'
- 'Nedoceratops belongs to Chasmosaurinae'
- 'Ojoceratops fowleri belongs to Ojoceratops'
- 'Pentaceratops belongs to Chasmosaurinae'
- 'Pentaceratops sternbergii [misspelled as Pentaceratops sternbergi] belongs to Pentaceratops'
- 'Protoceratops belongs to Neoceratopsia'
- 'Protoceratops andrewsi belongs to Protoceratops'
- 'Sterrholophus is a subjective synonym of Triceratops'
- 'Styracosaurus belongs to Chasmosaurinae'
- 'Styracosaurus albertensis belongs to Styracosaurus'
- 'Torosaurus belongs to Chasmosaurinae'
- 'Torosaurus gladius is a subjective synonym of Torosaurus latus'
- 'Torosaurus latus belongs to Torosaurus'
- 'Triceratops belongs to Chasmosaurinae'
- 'Triceratops calicornis is a subjective synonym of Triceratops horridus'
- 'Sterrholophus flabellatus is a subjective synonym of Triceratops horridus'
- 'Triceratops prorsus belongs to Triceratops'