Opinions from J. R. Horner 1992
- 'Anatotitan belongs to Edmontosaurinae'
- 'Aralosaurus belongs to Lambeosauridae'
- 'Brachylophosaurus belongs to Maiasaurinae'
- 'Brachylophosaurus goodwini belongs to Brachylophosaurus'
- 'Claosaurus belongs to Hadrosauridae'
- 'Claosaurus annectens is recombined as Edmontosaurus annectens' according to L. M. Lambe 1917
- 'Claosaurus annectens is recombined as Edmontosaurus annectens'
- 'Edmontosaurinae belongs to Hadrosauridae'
- 'Edmontosaurus belongs to Edmontosaurinae'
- 'Edmontosaurus regalis belongs to Edmontosaurus'
- 'Gilmoreosaurus belongs to Hadrosauridae'
- 'Gryposaurinae belongs to Hadrosauridae'
- 'Gryposaurus belongs to Gryposaurinae'
- 'Gryposaurus latidens belongs to Gryposaurus'
- 'Gryposaurus notabilis belongs to Gryposaurus'
- 'Hadrosauridae belongs to Hadrosauroidea'
- 'Hadrosaurus belongs to Hadrosauridae'
- 'Hadrosaurus agilis is recombined as Claosaurus agilis'
- 'Hadrosaurus foulkii belongs to Hadrosaurus'
- 'Kritosaurus belongs to Saurolophinae'
- 'Kritosaurus incurvimanus is recombined as Gryposaurus incurvimanus'
- 'Kritosaurus navajovius belongs to Kritosaurus'
- 'Lophorhothon belongs to Hadrosauridae'
- 'Maiasaura belongs to Maiasaurinae'
- 'Maiasaura peeblesorum belongs to Maiasaura'
- 'Maiasaurinae belongs to Hadrosauridae'
- 'Mandschurosaurus mongoliensis is recombined as Gilmoreosaurus mongoliensis'
- 'Prosaurolophus belongs to Saurolophinae'
- 'Prosaurolophus blackfeetensis belongs to Prosaurolophus'
- 'Saurolophinae belongs to Hadrosauridae'
- 'Saurolophus belongs to Saurolophinae'
- 'Saurolophus angustirostris belongs to Saurolophus'
- 'Saurolophus osborni belongs to Saurolophus'
- 'Secernosaurus belongs to Hadrosauridae'
- 'Secernosaurus koerneri belongs to Secernosaurus'
- 'Shantungosaurus belongs to Hadrosauridae'
- 'Tanius belongs to Hadrosauridae'
- 'Tanius sinensis belongs to Tanius'
- 'Telmatosaurus belongs to Hadrosauridae'
- 'Thespesius saskatchewanensis is recombined as Edmontosaurus saskatchewanensis' according to Sternberg 1926
- 'Thespesius saskatchewanensis is recombined as Edmontosaurus saskatchewanensis'