Opinions from M. R. Cooper 1981
- 'Aetonyx is a subjective synonym of Massospondylus'
- 'Aetonyx palustris is a subjective synonym of Massospondylus carinatus'
- 'Ammosauridae is a subjective synonym of Anchisauridae'
- 'Amphisauridae is a subjective synonym of Anchisauridae'
- 'Anchisauridae belongs to Prosauropoda'
- 'Aristosaurus is a subjective synonym of Massospondylus'
- 'Aristosaurus erectus is a subjective synonym of Massospondylus carinatus'
- 'Crocodilia is corrected as Crocodylia and belongs to Crocodilomorphi'
- 'Dimodosaurus is a subjective synonym of Plateosaurus'
- 'Dinosauria belongs to Archosauria'
- 'Drepanodus pitjanti belongs to Drepanodus'
- 'Dromicosaurus is a subjective synonym of Massospondylus'
- 'Dromicosaurus gracilis is a subjective synonym of Massospondylus carinatus'
- 'Eucnemesaurus is a subjective synonym of Euskelosaurus'
- 'Gresslyosaurus is a subjective synonym of Plateosaurus'
- 'Gryponichidae is a subjective synonym of Anchisauridae'
- 'Gryponyx is a subjective synonym of Massospondylus'
- 'Gryponyx taylori is a subjective synonym of Massospondylus carinatus'
- 'Gryponyx transvaalensis is a subjective synonym of Massospondylus carinatus'
- 'Gyposaurus is a subjective synonym of Massospondylus'
- 'Gyposaurus capensis is a subjective synonym of Massospondylus carinatus'
- 'Hortalotarsus is a subjective synonym of Massospondylus'
- 'Hortalotarsus skirtopodus is a subjective synonym of Massospondylus carinatus'
- 'Ischisaurus is a subjective synonym of Herrerasaurus'
- 'Leptospondylus is a subjective synonym of Massospondylus'
- 'Leptospondylus capensis is a subjective synonym of Massospondylus carinatus'
- 'Lufengosaurus is a subjective synonym of Massospondylus'
- 'Lufengosaurus huenei is recombined as Massospondylus huenei'
- 'Massospondylidae is a subjective synonym of Anchisauridae'
- 'Massospondylus browni is a subjective synonym of Massospondylus carinatus'
- 'Thecodontosaurus browni is a subjective synonym of Massospondylus carinatus'
- 'Massospondylus harriesi is a subjective synonym of Massospondylus carinatus'
- 'Massospondylus schwarzi is a subjective synonym of Massospondylus carinatus'
- 'Melanorosaurus is a subjective synonym of Euskelosaurus'
- 'Orinosaurus is a subjective synonym of Euskelosaurus'
- 'Orosaurus is a subjective synonym of Euskelosaurus'
- 'Pachysaurus is a subjective synonym of Plateosaurus'
- 'Pachyspondylus is a subjective synonym of Massospondylus'
- 'Pachyspondylus orpenii is a subjective synonym of Massospondylus carinatus'
- 'Plateosauravus is a subjective synonym of Euskelosaurus'
- 'Plateosauridae is a subjective synonym of Anchisauridae'
- 'Prosauropoda belongs to Saurischia'
- 'Proterosuchia belongs to Archosauria'
- 'Pseudosuchia belongs to Crocodilomorphi'
- 'Saurischia belongs to Dinosauria'
- 'Sellosauridae is a subjective synonym of Anchisauridae'
- 'Sellosaurus is a subjective synonym of Plateosaurus'
- 'Staurikosaurus is a subjective synonym of Herrerasaurus'
- 'Strenusaurus is a subjective synonym of Riojasaurus'
- 'Thecodontosauridae is a subjective synonym of Anchisauridae'
- 'Thecodontosaurus dubius is a subjective synonym of Massospondylus carinatus'
- 'Thecodontosaurus minor is a subjective synonym of Massospondylus carinatus'
- 'Yunnanosauridae is a subjective synonym of Anchisauridae'
- 'Yunnanosaurus is a subjective synonym of Lufengosaurus'