Opinions from A. Prieto-Márquez 2012
- 'Bactrosaurus johnsoni belongs to Bactrosaurus'
- 'Brachylophosaurus canadensis belongs to Brachylophosaurus'
- 'Charonosaurus jiayinensis belongs to Charonosaurus'
- 'Claosaurus annectens is recombined as Edmontosaurus annectens'
- 'Edmontosaurus regalis belongs to Edmontosaurus'
- 'Gryposaurus belongs to Saurolophinae'
- 'Gryposaurus latidens belongs to Gryposaurus'
- 'Gryposaurus monumentensis belongs to Gryposaurus'
- 'Gryposaurus notabilis belongs to Gryposaurus'
- 'Hadrosauridae belongs to Hadrosauroidea'
- 'Hadrosaurus agilis is recombined as Claosaurus agilis'
- 'Hypacrosaurus altispinus belongs to Hypacrosaurus'
- 'Kerberosaurus manakini belongs to Kerberosaurus'
- 'Gryposaurus incurvimanus is a subjective synonym of Gryposaurus notabilis'
- 'Kritosaurus navajovius belongs to Kritosaurus'
- 'Lambeosaurinae belongs to Hadrosauridae'
- 'Lambeosaurus laticaudus belongs to Lambeosaurus'
- 'Limnosaurus transsylvanicus is recombined as Telmatosaurus transsylvanicus'
- 'Lophorhothon atopus belongs to Lophorhothon'
- 'Maiasaura peeblesorum belongs to Maiasaura'
- 'Mandschurosaurus mongoliensis is recombined as Gilmoreosaurus mongoliensis'
- 'Olorotitan arharensis belongs to Olorotitan'
- 'Parasaurolophus cyrtocristatus belongs to Parasaurolophus'
- 'Parasaurolophus walkeri belongs to Parasaurolophus'
- 'Prosaurolophus maximus belongs to Prosaurolophus'
- 'Protohadros byrdi belongs to Protohadros'
- 'Saurolophinae belongs to Hadrosauridae'
- 'Saurolophus angustirostris belongs to Saurolophus'
- 'Saurolophus osborni belongs to Saurolophus'
- 'Secernosaurus koerneri belongs to Secernosaurus'
- 'Tanius sinensis belongs to Tanius'
- 'Tethyshadros insularis belongs to Tethyshadros'
- 'Velafrons coahuilensis belongs to Velafrons'
- 'Wulagasaurus dongi belongs to Wulagasaurus'