Opinions from H.-E. Sauvage 1880
- 'Allosaurus fragilis belongs to Allosaurus'
- 'Allosaurus lucaris [misspelled as Allosaurus lucarius] belongs to Allosaurus'
- 'Amphicoelias is a subjective synonym of Morosaurus'
- 'Apatosaurus ajax belongs to Apatosaurus'
- 'Apatosaurus grandis belongs to Apatosaurus'
- 'Apatosaurus laticollis belongs to Apatosaurus'
- 'Atlantosaurus immanis belongs to Atlantosaurus'
- 'Bothriospondylus robustus belongs to Bothriospondylus'
- 'Bothriospondylus suffossus belongs to Bothriospondylus'
- 'Brontosaurus excelsus belongs to Brontosaurus'
- 'Camptonotus amplus is recombined as Camptosaurus amplus'
- 'Camptonotus dispar is recombined as Camptosaurus dispar'
- 'Cetiosaurus philippsii belongs to Cetiosaurus'
- 'Chondrosteosaurus gigas belongs to Chondrosteosaurus'
- 'Coelurus fragilis belongs to Coelurus'
- 'Creosaurus atrox belongs to Creosaurus'
- 'Cryptosaurus eumerus belongs to Cryptosaurus'
- 'Diplodocus longus belongs to Diplodocus'
- 'Epanterias is a subjective synonym of Apatosaurus'
- 'Iguanodon phillipsii is recombined as Priodontognathus phillipsii'
- 'Iguanodon praecursor is recombined as Caulodon precursor'
- 'Iguanodon prestwichii belongs to Iguanodon'
- 'Laosaurus altus belongs to Laosaurus'
- 'Laosaurus celer [misspelled as Laosaurus aler] belongs to Laosaurus'
- 'Megalosaurus bucklandii [misspelled as Megalosaurus bucklandi] belongs to Megalosaurus'
- 'Megalosaurus insignis belongs to Megalosaurus'
- 'Morinosaurus typus belongs to Morinosaurus'
- 'Morosaurus impar belongs to Morosaurus'
- 'Morosaurus robustus belongs to Morosaurus'
- 'Nanosaurus rex [misspelled as Morosaurus rex] belongs to Nanosaurus'
- 'Omosaurus armatus belongs to Omosaurus'
- 'Ornithopsis is a subjective synonym of Chondrosteosaurus'
- 'Poekilopleuron bucklandii [misspelled as Poikilopleuron bucklandi] belongs to Poekilopleuron'
- 'Stegosaurus ungulatus [misspelled as Stegosaurus angulatus] belongs to Stegosaurus'
- 'Titanosaurus is a subjective synonym of Atlantosaurus'
- 'Titanosaurus montanus is recombined as Atlantosaurus montanus'