Opinions from G. Olshevsky 1991
- 'Acrocanthosaurus altispinax is recombined as Becklespinax altispinax'
- 'Apatodon is a subjective synonym of Allosaurus'
- 'Apatodon mirus is a subjective synonym of Allosaurus fragilis'
- 'Avaceratops lammersi is corrected as Avaceratops lammersorum and belongs to Avaceratops'
- 'Basitheropoda belongs to Theropodomorpha'
- 'Frenguellisaurus belongs to Staurikosauridae'
- 'Frenguellisaurus ischigualastensis belongs to Frenguellisaurus'
- 'Herrerasauria belongs to Theropodomorpha'
- 'Lagerpeton belongs to Lagerpetonidae'
- 'Lagerpeton chanarensis belongs to Lagerpeton'
- 'Lagerpetonidae belongs to Lagosuchia'
- 'Lagosuchia belongs to Theropodomorpha'
- 'Lagosuchidae belongs to Lagosuchia'
- 'Lagosuchus belongs to Lagosuchidae'
- 'Lagosuchus lilloensis is a subjective synonym of Lagosuchus talampayensis'
- 'Lagosuchus talampayensis belongs to Lagosuchus'
- 'Longisquamidae belongs to Basitheropoda'
- 'Megalancosauridae belongs to Basitheropoda'
- 'Megalosaurus oweni is recombined as Valdoraptor oweni'
- 'Protognathus is replaced by Protognathosaurus'
- 'Protognathus oxyodon is recombined as Protognathosaurus oxyodon'
- 'Pseudolagosuchus belongs to Lagosuchidae'
- 'Pseudolagosuchus major belongs to Pseudolagosuchus'
- 'Pterosauria was reranked as a superorder and belongs to Archosauria'
- 'Sauropelta edwardsi is corrected as Sauropelta edwardsorum and belongs to Sauropelta'
- 'Sharivopterygia belongs to Pterosauria'
- 'Spondylosoma belongs to Staurikosauridae'
- 'Spondylosoma absconditum belongs to Spondylosoma'
- 'Staurikosauridae belongs to Herrerasauria'
- 'Staurikosaurus belongs to Staurikosauridae'
- 'Staurikosaurus pricei belongs to Staurikosaurus'
- 'Stenotholus kohleri is corrected as Stenotholus kohlerorum and belongs to Stenotholus'
- 'Tenontosaurus tilletti is corrected as Tenontosaurus tillettorum and belongs to Tenontosaurus'
- 'Theropodomorpha belongs to Dinosauria'
- 'Ultrasaurus is replaced by Ultrasauros'
- 'Ultrasaurus macintoshi is recombined as Ultrasauros macintoshi'