Opinions from P. Godefroit et al. 1998
- 'Anatotitan belongs to Hadrosaurinae'
- 'Aralosaurus belongs to Hadrosaurinae'
- 'Bactrosaurus belongs to Hadrosauroidea'
- 'Bactrosaurus johnsoni belongs to Bactrosaurus'
- 'Bactrosaurus prynadai belongs to Bactrosaurus'
- 'Brachylophosaurus belongs to Hadrosaurinae'
- 'Brachylophosaurus canadensis belongs to Brachylophosaurus'
- 'Camptonotus dispar is recombined as Camptosaurus dispar'
- 'Camptosaurus belongs to Ankylopollexia'
- 'Claosaurus belongs to Hadrosauroidea'
- 'Claosaurus annectens is recombined as Edmontosaurus annectens'
- 'Corythosaurus belongs to Lambeosaurinae'
- 'Corythosaurus casuarius belongs to Corythosaurus'
- 'Edmontosaurus belongs to Hadrosaurinae'
- 'Edmontosaurus regalis belongs to Edmontosaurus'
- 'Gilmoreosaurus belongs to Hadrosauroidea'
- 'Gryposaurus belongs to Hadrosaurinae'
- 'Gryposaurus notabilis belongs to Gryposaurus'
- 'Hadrosauridae belongs to Hadrosauroidea'
- 'Hadrosaurinae belongs to Hadrosauridae'
- 'Hadrosauroidea belongs to Ankylopollexia'
- 'Hadrosaurus belongs to Hadrosaurinae'
- 'Hypacrosaurus belongs to Lambeosaurinae'
- 'Hypacrosaurus altispinus belongs to Hypacrosaurus'
- 'Hypsilophodon foxii belongs to Hypsilophodon'
- 'Iguanodon belongs to Iguanodontidae'
- 'Iguanodon atherfieldensis belongs to Iguanodon'
- 'Iguanodon bernissartensis belongs to Iguanodon'
- 'Iguanodon lakotaensis belongs to Iguanodon'
- 'Iguanodontia belongs to Ornithopoda'
- 'Iguanodontidae belongs to Ankylopollexia'
- 'Kritosaurus incurvimanus belongs to Kritosaurus'
- 'Lambeosaurinae belongs to Hadrosauridae'
- 'Lambeosaurus belongs to Lambeosaurinae'
- 'Lambeosaurus lambei belongs to Lambeosaurus'
- 'Limnosaurus transsylvanicus is recombined as Telmatosaurus transsylvanicus'
- 'Lophorhothon belongs to Hadrosaurinae'
- 'Maiasaura belongs to Hadrosaurinae'
- 'Maiasaura peeblesorum belongs to Maiasaura'
- 'Mandschurosaurus belongs to Hadrosauroidea'
- 'Mandschurosaurus mongoliensis is recombined as Gilmoreosaurus mongoliensis'
- 'Ornithopoda belongs to Ornithischia'
- 'Ouranosaurus belongs to Iguanodontidae'
- 'Ouranosaurus nigeriensis belongs to Ouranosaurus'
- 'Parasaurolophus belongs to Lambeosaurinae'
- 'Parasaurolophus cyrtocristatus belongs to Parasaurolophus'
- 'Parasaurolophus walkeri belongs to Parasaurolophus'
- 'Probactrosaurus gobiensis belongs to Probactrosaurus'
- 'Prosaurolophus belongs to Hadrosaurinae'
- 'Prosaurolophus maximus belongs to Prosaurolophus'
- 'Saurolophus belongs to Hadrosaurinae'
- 'Saurolophus angustirostris belongs to Saurolophus'
- 'Saurolophus osborni belongs to Saurolophus'
- 'Secernosaurus belongs to Hadrosauroidea'
- 'Shantungosaurus belongs to Hadrosaurinae'
- 'Shantungosaurus giganteus belongs to Shantungosaurus'
- 'Tanius belongs to Hadrosauroidea'
- 'Tanius sinensis belongs to Tanius'
- 'Telmatosaurus belongs to Hadrosauroidea'
- 'Thespesius saskatchewanensis is recombined as Edmontosaurus saskatchewanensis'