Opinions from J. F. Bonaparte 1996
- 'Abelisaurus belongs to Abelisauridae'
- 'Abelisaurus comahuensis belongs to Abelisaurus'
- 'Aeolosaurus belongs to Titanosaurinae'
- 'Aeolosaurus rionegrinus belongs to Aeolosaurus'
- 'Alvarezsauridae belongs to Alvarezsauria'
- 'Alvarezsaurus belongs to Alvarezsauridae'
- 'Alvarezsaurus calvoi belongs to Alvarezsaurus'
- 'Amargasaurus belongs to Dicraeosauridae'
- 'Amargasaurus cazaui belongs to Amargasaurus'
- 'Andesaurinae was reranked as the family Andesauridae and belongs to Titanosauria'
- 'Andesaurus belongs to Andesauridae'
- 'Andesaurus delgadoi belongs to Andesaurus'
- 'Antarctosaurinae belongs to Titanosauridae'
- 'Antarctosaurus belongs to Antarctosaurinae'
- 'Antarctosaurus giganteus belongs to Antarctosaurus'
- 'Antarctosaurus wichmannianus belongs to Antarctosaurus'
- 'Argentinosaurus belongs to Andesauridae'
- 'Argentinosaurus huinculensis belongs to Argentinosaurus'
- 'Argyrosaurinae belongs to Titanosauridae'
- 'Argyrosaurus belongs to Argyrosaurinae'
- 'Argyrosaurus superbus belongs to Argyrosaurus'
- 'Campylodon ameghinoi is recombined as Campylodoniscus ameghinoi'
- 'Campylodoniscus belongs to Titanosauria'
- 'Carnotaurus belongs to Abelisauridae'
- 'Carnotaurus sastrei belongs to Carnotaurus'
- 'Chubutisaurus belongs to Sauropoda'
- 'Chubutisaurus insignis belongs to Chubutisaurus'
- 'Clasmodosaurus is a nomen dubium'
- 'Clasmodosaurus spatula is a nomen dubium'
- 'Dicraeosauridae belongs to Sauropoda'
- 'Dicraeosaurus belongs to Dicraeosauridae'
- 'Epachthosaurus belongs to Andesauridae'
- 'Genyodectes belongs to Theropoda'
- 'Genyodectes serus belongs to Genyodectes'
- 'Hadrosaurinae belongs to Hadrosauridae'
- 'Kritosaurus belongs to Hadrosaurinae'
- 'Kritosaurus australis belongs to Kritosaurus'
- 'Lambeosaurinae belongs to Hadrosauridae'
- 'Laplatasaurus araukanicus is recombined as Titanosaurus araukanicus'
- 'Ligabueino belongs to Noasauridae'
- 'Ligabueino andesi belongs to Ligabueino'
- 'Microcoelus is a nomen dubium'
- 'Microcoelus patagonicus is a nomen dubium'
- 'Neuquensaurus belongs to Saltasaurinae'
- 'Noasaurus belongs to Noasauridae'
- 'Noasaurus leali belongs to Noasaurus'
- 'Notoceratops belongs to Ceratopsia'
- 'Notoceratops bonarelli [misspelled as Notoceratops bonarellii] belongs to Notoceratops'
- 'Rayososaurus belongs to Sauropoda'
- 'Rayososaurus agrioensis belongs to Rayososaurus'
- 'Saltasaurinae belongs to Titanosauridae'
- 'Saltasaurus belongs to Saltasaurinae'
- 'Saltasaurus loricatus belongs to Saltasaurus'
- 'Secernosaurus belongs to Hadrosaurinae'
- 'Secernosaurus koerneri belongs to Secernosaurus'
- 'Titanosauria belongs to Sauropoda'
- 'Titanosauridae belongs to Titanosauria'
- 'Titanosaurinae belongs to Titanosauridae'
- 'Titanosaurus belongs to Titanosaurinae'
- 'Titanosaurus australis is recombined as Neuquensaurus australis'
- 'Titanosaurus nanus belongs to Titanosaurus'
- 'Titanosaurus robustus is recombined as Neuquensaurus robustus'
- 'Unquillosaurus belongs to Theropoda'
- 'Unquillosaurus ceibalii belongs to Unquillosaurus'
- 'Velocisaurus belongs to Velocisauridae'
- 'Velocisaurus unicus belongs to Velocisaurus'
- 'Xenotarsosaurus belongs to Abelisauridae'
- 'Xenotarsosaurus bonapartei belongs to Xenotarsosaurus'