Opinions from A. Prieto-Márquez et al. 2006
- 'Amurosaurus belongs to Lambeosaurinae'
- 'Amurosaurus riabinini belongs to Amurosaurus'
- 'Bactrosaurus belongs to Hadrosauroidea'
- 'Bactrosaurus johnsoni belongs to Bactrosaurus'
- 'Brachylophosaurus belongs to Hadrosaurinae'
- 'Brachylophosaurus canadensis belongs to Brachylophosaurus'
- 'Claosaurus annectens is recombined as Edmontosaurus annectens'
- 'Corythosaurus belongs to Lambeosaurinae'
- 'Corythosaurus casuarius belongs to Corythosaurus'
- 'Edmontosaurus belongs to Hadrosaurinae'
- 'Gilmoreosaurus belongs to Hadrosauroidea'
- 'Gryposaurus belongs to Hadrosaurinae'
- 'Hadrosauridae belongs to Hadrosauroidea'
- 'Hadrosaurinae belongs to Hadrosauridae'
- 'Hadrosaurus foulkii belongs to Hadrosaurus'
- 'Hypacrosaurus belongs to Lambeosaurinae'
- 'Hypacrosaurus altispinus belongs to Hypacrosaurus'
- 'Hypacrosaurus stebingeri belongs to Hypacrosaurus'
- 'Iguanodon atherfieldensis belongs to Iguanodon'
- 'Iguanodon bernissartensis belongs to Iguanodon'
- 'Koutalisaurus belongs to Hadrosauridae'
- 'Koutalisaurus kohlerorum belongs to Koutalisaurus'
- 'Lambeosaurinae belongs to Hadrosauridae'
- 'Lambeosaurus belongs to Lambeosaurinae'
- 'Lambeosaurus lambei belongs to Lambeosaurus'
- 'Limnosaurus transsylvanicus is recombined as Telmatosaurus transsylvanicus'
- 'Maiasaura belongs to Hadrosaurinae'
- 'Maiasaura peeblesorum belongs to Maiasaura'
- 'Mandschurosaurus mongoliensis is recombined as Gilmoreosaurus mongoliensis'
- 'Olorotitan belongs to Lambeosaurinae'
- 'Olorotitan arharensis belongs to Olorotitan'
- 'Orthomerus dolloi is a nomen dubium'
- 'Ouranosaurus belongs to Hadrosauroidea'
- 'Ouranosaurus nigeriensis belongs to Ouranosaurus'
- 'Pararhabdodon belongs to Hadrosauroidea'
- 'Pararhabdodon isonense is corrected as Pararhabdodon isonensis and belongs to Pararhabdodon'
- 'Parasaurolophus belongs to Lambeosaurinae'
- 'Parasaurolophus cyrtocristatus belongs to Parasaurolophus'
- 'Parasaurolophus tubicen belongs to Parasaurolophus'
- 'Probactrosaurus belongs to Hadrosauroidea'
- 'Probactrosaurus gobiensis belongs to Probactrosaurus'
- 'Prosaurolophus belongs to Hadrosaurinae'
- 'Prosaurolophus maximus belongs to Prosaurolophus'
- 'Protohadros belongs to Hadrosauroidea'
- 'Protohadros byrdi belongs to Protohadros'
- 'Saurolophus belongs to Hadrosaurinae'
- 'Saurolophus osborni belongs to Saurolophus'
- 'Tanius belongs to Hadrosauroidea'
- 'Tanius sinensis belongs to Tanius'
- 'Telmatosaurus belongs to Hadrosauroidea'