Opinions from J. E. Powell 2003
- 'Acanthopholis platypus is a subjective synonym of Macrurosaurus semnus'
- 'Aegyptosaurus belongs to Titanosauridae'
- 'Aegyptosaurus baharijensis belongs to Aegyptosaurus'
- 'Aeolosaurus belongs to Titanosauridae'
- 'Aeolosaurus rionegrinus belongs to Aeolosaurus'
- 'Alamosaurus belongs to Eutitanosauria'
- 'Alamosaurus sanjuanensis belongs to Alamosaurus'
- 'Ampelosaurus belongs to Titanosauridae'
- 'Ampelosaurus atacis belongs to Ampelosaurus'
- 'Antarctosaurus belongs to Titanosauridae'
- 'Antarctosaurus brasiliensis is a nomen dubium'
- 'Antarctosaurus giganteus belongs to Antarctosaurus'
- 'Antarctosaurus septentrionalis belongs to Antarctosaurus'
- 'Antarctosaurus wichmannianus belongs to Antarctosaurus'
- 'Argyrosaurus belongs to Titanosauridae'
- 'Argyrosaurus superbus belongs to Argyrosaurus'
- 'Campylodon is replaced by Campylodoniscus' according to O. Kuhn 1961
- 'Campylodon ameghinoi is recombined as Campylodoniscus ameghinoi' according to O. Kuhn 1961
- 'Campylodoniscus ameghinoi is a nomen dubium'
- 'Campylodoniscus is a nomen dubium'
- 'Clasmodosaurus is a nomen dubium'
- 'Clasmodosaurus spatula belongs to Clasmodosaurus' according to F. Ameghino 1898
- 'Clasmodosaurus spatula is a nomen dubium'
- 'Epachthosaurus belongs to Titanosauria'
- 'Epachthosaurus sciuttoi belongs to Epachthosaurus'
- 'Eutitanosauria belongs to Titanosauria'
- 'Hypselosaurus belongs to Titanosauridae'
- 'Hypselosaurus priscus belongs to Hypselosaurus'
- 'Iuticosaurus belongs to Titanosauridae'
- 'Laplatasaurus is a subjective synonym of Titanosaurus'
- 'Laplatasaurus araukanicus is recombined as Titanosaurus araukanicus'
- 'Limnosaurus transsylvanicus [misspelled as Orthomerus transylvanicus] belongs to Orthomerus'
- 'Lirainosaurus belongs to Eutitanosauria'
- 'Lirainosaurus astibiae belongs to Lirainosaurus'
- 'Macrurosaurus semnus belongs to Macrurosaurus'
- 'Magyarosaurus belongs to Titanosauridae'
- 'Magyarosaurus hungaricus belongs to Magyarosaurus'
- 'Magyarosaurus transsylvanicus is corrected as Magyarosaurus transylvanicus and belongs to Magyarosaurus'
- 'Microcoelus is a nomen dubium'
- 'Microcoelus patagonicus is a nomen dubium'
- 'Neuquensaurus belongs to Titanosauridae'
- 'Opisthocoelicaudia belongs to Titanosauroidea'
- 'Pellegrinisaurus belongs to Titanosauridae'
- 'Pellegrinisaurus powelli belongs to Pellegrinisaurus'
- 'Rabdodon priscum is recombined as Rhabdodon priscum'
- 'Rhodanosaurus ludgunensis is recombined as Struthiosaurus lugdunensis'
- 'Saltasaurus belongs to Titanosauridae'
- 'Saltasaurus loricatus belongs to Saltasaurus'
- 'Titanosauria belongs to Titanosauroidea'
- 'Titanosauridae belongs to Eutitanosauria'
- 'Titanosaurus belongs to Titanosauridae'
- 'Titanosaurus australis is recombined as Neuquensaurus australis'
- 'Titanosaurus blanfordi belongs to Titanosaurus'
- 'Titanosaurus colberti belongs to Titanosaurus'
- 'Titanosaurus dacus is recombined as Magyarosaurus dacus'
- 'Titanosaurus indicus belongs to Titanosaurus'
- 'Titanosaurus lydekkeri belongs to Titanosaurus'
- 'Titanosaurus madagascariensis belongs to Titanosaurus'
- 'Titanosaurus nanus is a nomen dubium'
- 'Neuquensaurus robustus is a nomen dubium'
- 'Titanosaurus valdensis is recombined as Iuticosaurus valdensis'