Opinions from L. M. Lambe 1902
- 'Acipenser albertensis belongs to Acipenser'
- 'Adocus lineolatus belongs to Adocus'
- 'Agathaumidae is a subjective synonym of Ceratopsidae'
- 'Aublysodon is a nomen nudum'
- 'Baena antiqua belongs to Baena'
- 'Baena hatcheri belongs to Baena' according to O. P. Hay 1901
- 'Baena hatcheri belongs to Baena'
- 'Boreodon belongs to Plagiaulacidae'
- 'Boreodon matutinus belongs to Boreodon'
- 'Bottosaurus perrugosus belongs to Bottosaurus'
- 'Ceratodus eruciferus is recombined as Rhineastes eruciferus'
- 'Champsosaurus annectens belongs to Champsosaurus'
- 'Cimoliosaurus magnus is recombined as Cimoliasaurus magnus'
- 'Compsemys variolosus is recombined as Adocus variolosus'
- 'Crocodilus humilis belongs to Crocodilus'
- 'Deinodon belongs to Dryptosauridae'
- 'Deinodon horridus belongs to Deinodon'
- 'Diphyodus belongs to Pisces'
- 'Diphyodus longirostris belongs to Diphyodus'
- 'Hadrosaurus foulkii belongs to Hadrosaurus'
- 'Iguanodon mantelli belongs to Iguanodon'
- 'Laelaps explanatus is recombined as Deinodon explanatus'
- 'Laelaps incrassatus belongs to Laelaps'
- 'Lepidotus occidentalis belongs to Lepidotus'
- 'Monoclonius belongs to Ceratopsidae'
- 'Monoclonius belli belongs to Monoclonius'
- 'Monoclonius canadensis belongs to Monoclonius'
- 'Monoclonius crassus belongs to Monoclonius'
- 'Monoclonius dawsoni belongs to Monoclonius'
- 'Monoclonius recurvicornis belongs to Monoclonius'
- 'Monoclonius sphenocerus [misspelled as Monoclonius sphenoceras] belongs to Monoclonius'
- 'Myledaphus bipartitus belongs to Myledaphus'
- 'Neurankylus belongs to Chelydridae'
- 'Neurankylus eximius belongs to Neurankylus'
- 'Ornithomimus belongs to Ornithomimidae'
- 'Ornithomimus altus belongs to Ornithomimus'
- 'Palaeoscincus belongs to Stegosauridae'
- 'Palaeoscincus asper belongs to Palaeoscincus'
- 'Palaeoscincus costatus belongs to Palaeoscincus'
- 'Polyonax mortuarius belongs to Polyonax'
- 'Pteropelyx was reranked as Trachodon (Pteropelyx) and belongs to Trachodon'
- 'Pteropelyx grallipes belongs to Pteropelyx'
- 'Ptilodus primaevus belongs to Ptilodus'
- 'Scapherpeton tectum belongs to Scapherpeton'
- 'Stegoceras belongs to Ceratopsidae'
- 'Stegoceras validus belongs to Stegoceras'
- 'Stereocephalus belongs to Stegosauridae'
- 'Stereocephalus tutus belongs to Stereocephalus'
- 'Torosaurus gladius belongs to Torosaurus'
- 'Torosaurus latus belongs to Torosaurus'
- 'Trachodon (Pteropelyx) marginatus belongs to Trachodon (Pteropelyx)'
- 'Triceratops serratus belongs to Triceratops'
- 'Trionyx foveatus belongs to Trionyx'
- 'Trionyx vagans belongs to Trionyx'
- 'Troodon belongs to Lacertilia'
- 'Troodon formosus belongs to Troodon'