Opinions from J. A. Wilson and P. C. Sereno 1998
- 'Aeolosaurus belongs to Titanosauria'
- 'Alamosaurus belongs to Titanosauria'
- 'Amargasaurus belongs to Dicraeosauridae'
- 'Ampelosaurus belongs to Titanosauria'
- 'Andesaurus belongs to Titanosauria'
- 'Apatosaurus belongs to Diplodocidae'
- 'Apatosaurus alenquerensis is recombined as Camarasaurus alenquerensis'
- 'Apatosaurus grandis is recombined as Camarasaurus grandis'
- 'Argentinosaurus belongs to Titanosauria'
- 'Barapasaurus belongs to Eusauropoda'
- 'Barapasaurus tagorei belongs to Barapasaurus'
- 'Barosaurus belongs to Diplodocidae'
- 'Brachiosauridae belongs to Titanosauriformes'
- 'Brachiosaurus belongs to Brachiosauridae'
- 'Brachiosaurus altithorax belongs to Brachiosaurus'
- 'Brachiosaurus brancai belongs to Brachiosaurus'
- 'Camarasaurus belongs to Macronaria'
- 'Camarasaurus supremus belongs to Camarasaurus'
- 'Cathetosaurus lewisi is recombined as Camarasaurus lewisi'
- 'Dicraeosauridae belongs to Diplodocoidea'
- 'Dicraeosaurus belongs to Dicraeosauridae'
- 'Diplodocidae belongs to Diplodocoidea'
- 'Diplodocimorpha is a subjective synonym of Diplodocoidea'
- 'Diplodocoidea belongs to Neosauropoda'
- 'Diplodocus belongs to Diplodocidae'
- 'Epachthosaurus belongs to Titanosauria'
- 'Eucamerotus belongs to Brachiosauridae'
- 'Euhelopus belongs to Somphospondyli'
- 'Eusauropoda belongs to Sauropoda'
- 'Haplocanthosaurus belongs to Macronaria'
- 'Haplocanthosaurus delfsi belongs to Haplocanthosaurus'
- 'Haplocanthosaurus utterbacki is a subjective synonym of Haplocanthosaurus priscus'
- 'Haplocanthus priscus is recombined as Haplocanthosaurus priscus'
- 'Helopus zdanskyi is recombined as Euhelopus zdanskyi'
- 'Janenschia belongs to Titanosauria'
- 'Macronaria belongs to Neosauropoda'
- 'Magyarosaurus belongs to Titanosauria'
- 'Malawisaurus belongs to Titanosauria'
- 'Morosaurus lentus is recombined as Camarasaurus lentus' according to C. C. Mook 1914
- 'Morosaurus lentus is recombined as Camarasaurus lentus'
- 'Nemegtosaurus belongs to Titanosauria'
- 'Neosauropoda belongs to Eusauropoda'
- 'Neuquensaurus belongs to Titanosauria'
- 'Omeisaurus belongs to Eusauropoda'
- 'Omeisaurus junghsiensis belongs to Omeisaurus'
- 'Omeisaurus tianfuensis belongs to Omeisaurus'
- 'Opisthocoelicaudia belongs to Titanosauria'
- 'Pleurocoelus belongs to Brachiosauridae'
- 'Prosauropoda belongs to Sauropodomorpha'
- 'Quaesitosaurus belongs to Titanosauria'
- 'Rayososaurus belongs to Diplodocoidea'
- 'Rayososaurus agrioensis belongs to Rayososaurus'
- 'Rebbachisaurus belongs to Diplodocoidea'
- 'Rebbachisaurus garasbae belongs to Rebbachisaurus'
- 'Rebbachisaurus tessonei is recombined as Rayososaurus tessonei'
- 'Saltasaurus belongs to Titanosauria'
- 'Sauropoda was reranked as a unranked clade and belongs to Sauropodomorpha'
- 'Shunosaurus belongs to Eusauropoda'
- 'Shunosaurus lii belongs to Shunosaurus'
- 'Somphospondyli belongs to Titanosauriformes'
- 'Titanosauria belongs to Somphospondyli'
- 'Titanosauriformes belongs to Macronaria'
- 'Vulcanodon belongs to Sauropoda'
- 'Vulcanodon karibaensis belongs to Vulcanodon'