Opinions from J. Párraga and A. Prieto-Márquez 2019
- 'Arenysaurus ardevoli belongs to Arenysaurus'
- 'Barilium belongs to Styracosterna'
- 'Bolong belongs to Styracosterna'
- 'Bolong yixianensis belongs to Bolong'
- 'Callovosaurus belongs to Dryomorpha'
- 'Camptonotus dispar is recombined as Camptosaurus dispar'
- 'Camptosaurus leedsi is recombined as Callovosaurus leedsi'
- 'Cumnoria belongs to Styracosterna'
- 'Draconyx belongs to Styracosterna'
- 'Draconyx loureiroi belongs to Draconyx'
- 'Eousdryosaurus belongs to Dryomorpha'
- 'Eousdryosaurus nanohallucis belongs to Eousdryosaurus'
- 'Haya griva belongs to Haya'
- 'Iguanodon dawsoni is recombined as Barilium dawsoni'
- 'Iguanodon prestwichii is recombined as Cumnoria prestwichii'
- 'Lesothosaurus diagnosticus belongs to Lesothosaurus'
- 'Mochlodon belongs to Rhabdodontidae'
- 'Mochlodon robustum is recombined as Zalmoxes robustus'
- 'Mochlodon vorosi belongs to Mochlodon'
- 'Orodromeus makelai belongs to Orodromeus'
- 'Oryctodromeus cubicularis belongs to Oryctodromeus'
- 'Pararhabdodon belongs to Lambeosaurinae'
- 'Pararhabdodon isonense is corrected as Pararhabdodon isonensis and belongs to Pararhabdodon'
- 'Pareisactus belongs to Rhabdodontidae'
- 'Pareisactus evrostos belongs to Pareisactus'
- 'Rabdodon is corrected as Rhabdodon and belongs to Rhabdodontidae'
- 'Rabdodon priscum is recombined as Rhabdodon priscus'
- 'Rhabdodon septimanicus belongs to Rhabdodon'
- 'Valdosaurus belongs to Dryomorpha'
- 'Zalmoxes belongs to Rhabdodontidae'
- 'Zalmoxes shqiperorum belongs to Zalmoxes'