Opinions from A. T. McDonald 2012
- 'Altirhinus belongs to Hadrosauroidea'
- 'Ankylopollexia belongs to Dryomorpha'
- 'Bactrosaurus belongs to Hadrosauroidea'
- 'Barilium belongs to Styracosterna'
- 'Callovosaurus belongs to Dryosauridae'
- 'Camptonotus dispar is recombined as Camptosaurus dispar'
- 'Camptosaurus belongs to Ankylopollexia'
- 'Camptosaurus aphanoecetes is recombined as Uteodon aphanoecetes'
- 'Dryomorpha belongs to Iguanodontia'
- 'Dryosauridae belongs to Dryomorpha'
- 'Elrhazosaurus belongs to Dryosauridae'
- 'Eolambia belongs to Hadrosauroidea'
- 'Equijubus belongs to Hadrosauroidea'
- 'Gilmoreosaurus belongs to Hadrosauroidea'
- 'Hadrosauridae belongs to Hadrosauroidea'
- 'Hadrosauriformes belongs to Styracosterna'
- 'Hadrosauroidea was reranked as a unranked clade and belongs to Hadrosauriformes'
- 'Hippodraco belongs to Styracosterna'
- 'Iguanacolossus belongs to Styracosterna'
- 'Iguanodon belongs to Hadrosauriformes'
- 'Iguanodon atherfieldensis is recombined as Mantellisaurus atherfieldensis'
- 'Iguanodon bernissartensis belongs to Iguanodon'
- 'Iguanodon dawsoni is recombined as Barilium dawsoni'
- 'Jeyawati belongs to Hadrosauroidea'
- 'Kukufeldia belongs to Styracosterna'
- 'Kukufeldia tilgatensis belongs to Kukufeldia'
- 'Lanzhousaurus belongs to Styracosterna'
- 'Mantellisaurus belongs to Hadrosauroidea'
- 'Mochlodon robustum is recombined as Zalmoxes robustus'
- 'Nanyangosaurus belongs to Hadrosauroidea'
- 'Probactrosaurus belongs to Hadrosauroidea'
- 'Probactrosaurus gobiensis belongs to Probactrosaurus'
- 'Protohadros belongs to Hadrosauroidea'
- 'Rabdodon is corrected as Rhabdodon and belongs to Rhabdodontidae'
- 'Rhabdodontidae belongs to Iguanodontia'
- 'Shuangmiaosaurus belongs to Hadrosauroidea'
- 'Styracosterna belongs to Ankylopollexia'
- 'Telmatosaurus belongs to Hadrosauroidea'
- 'Tenontosaurus belongs to Iguanodontia'
- 'Tenontosaurus dossi belongs to Tenontosaurus'
- 'Tenontosaurus tilletti belongs to Tenontosaurus'
- 'Tethyshadros belongs to Hadrosauroidea'
- 'Theiophytalia belongs to Styracosterna'
- 'Uteodon belongs to Styracosterna'
- 'Valdosaurus belongs to Dryosauridae'
- 'Xuwulong belongs to Hadrosauroidea'
- 'Zalmoxes belongs to Rhabdodontidae'
- 'Zalmoxes shqiperorum belongs to Zalmoxes'