Opinions from R. Estes and P. Berberian 1970
- 'Adocus belongs to Dermatemydidae'
- 'Albulidae belongs to Elopiformes'
- 'Alligatorinae belongs to Crocodylidae'
- 'Ambystomatoidea belongs to Caudata'
- 'Amia belongs to Amiidae'
- 'Amphiumidae belongs to Salamandroidea'
- 'Anguidae belongs to Diploglossa'
- 'Anguimorpha belongs to Sauria'
- 'Aniliidae belongs to Booidea'
- 'Aspidorhynchidae belongs to Aspidorhynchiformes'
- 'Baena cephalica is recombined as Eubaena cephalica'
- 'Baena cephalica is recombined as Eubaena cephalica' according to O. P. Hay
- 'Baenidae belongs to Testudinata'
- 'Barbourula belongs to Discoglossidae'
- 'Batrachosauroididae belongs to Ambystomatoidea'
- 'Belonostomus belongs to Aspidorhynchidae'
- 'Boidae belongs to Booidea'
- 'Booidea belongs to Serpentes'
- 'Brachychampsa belongs to Alligatorinae'
- 'Brachychampsa montana belongs to Brachychampsa'
- 'Chamops belongs to Teiidae'
- 'Chamops segnis belongs to Chamops'
- 'Champsosauridae belongs to Eosuchia'
- 'Champsosaurus belongs to Champsosauridae'
- 'Colpodontosaurus belongs to Diploglossa'
- 'Colpodontosaurus cracens belongs to Colpodontosaurus'
- 'Compsemys belongs to Dermatemydidae'
- 'Compsemys victus is corrected as Compsemys victa and belongs to Compsemys'
- 'Coniophis belongs to Aniliidae'
- 'Coniophis precedens belongs to Coniophis'
- 'Contogenys belongs to Scincidae'
- 'Contogenys sloani belongs to Contogenys'
- 'Coriops belongs to Albulidae'
- 'Crocodilia belongs to Reptilia'
- 'Crocodylidae belongs to Eusuchia'
- 'Crocodylinae belongs to Crocodylidae'
- 'Cuttysarkus belongs to Sauria'
- 'Cuttysarkus mcnallyi belongs to Cuttysarkus'
- 'Dasyatidae belongs to Batoidea'
- 'Dermatemydidae belongs to Testudinata'
- 'Discoglossidae belongs to Salientia'
- 'Elopidae belongs to Elopiformes'
- 'Emydinae belongs to Testudinidae'
- 'Eopelobates belongs to Pelobatidae'
- 'Eosuchia was reranked as a order and belongs to Reptilia'
- 'Eubaena belongs to Baenidae'
- 'Eusuchia belongs to Crocodilia'
- 'Exostinus belongs to Xenosauridae'
- 'Exostinus lancensis belongs to Exostinus'
- 'Habrosaurus belongs to Sirenidae'
- 'Haptosphenus belongs to Teiidae'
- 'Haptosphenus placodon belongs to Haptosphenus'
- 'Ischyrhiza belongs to Pristidae'
- 'Leidyosuchus belongs to Crocodylinae'
- 'Lepisosteidae belongs to Lepisosteiformes'
- 'Lepisosteus belongs to Lepisosteidae'
- 'Leptochamops belongs to Teiidae'
- 'Lisserpeton belongs to Scapherpetonidae'
- 'Lonchidion belongs to Hybodontidae'
- 'Meantes belongs to Caudata'
- 'Myledaphus belongs to Dasyatidae'
- 'Opisthotriton belongs to Batrachosauroididae'
- 'Palaeolabrus belongs to Palaeolabridae'
- 'Palaeosaniwa belongs to Varanidae'
- 'Paleopsephurus belongs to Polyodontidae'
- 'Paraderma belongs to Parasaniwidae'
- 'Paraderma bogerti belongs to Paraderma'
- 'Paralbula belongs to Phyllodontidae'
- 'Parasaniwa belongs to Parasaniwidae'
- 'Parasaniwa wyomingensis belongs to Parasaniwa'
- 'Parasaniwidae belongs to Diploglossa'
- 'Pelobatidae belongs to Salientia'
- 'Peneteius belongs to Teiidae'
- 'Peneteius aquilonius belongs to Peneteius' according to R. Estes 1969
- 'Peneteius aquilonius belongs to Peneteius'
- 'Phyllodontidae belongs to Elopiformes'
- 'Platacodon belongs to Sciaenoidei'
- 'Polyodontidae belongs to Acipenseriformes'
- 'Pristidae belongs to Batoidea'
- 'Proamphiuma belongs to Amphiumidae'
- 'Prodesmodon belongs to Prosirenidae'
- 'Prosirenidae belongs to Ambystomatoidea'
- 'Salamandroidea belongs to Caudata'
- 'Scapherpeton belongs to Scapherpetonidae'
- 'Scapherpetonidae belongs to Ambystomatoidea'
- 'Sciaenoidei was reranked as the family Sciaenidae and belongs to Perciformes'
- 'Scincidae belongs to Scincomorpha'
- 'Scincomorpha belongs to Sauria'
- 'Scotiophryne belongs to Discoglossidae'
- 'Scotiophryne pustulosa belongs to Scotiophryne'
- 'Serpentes belongs to Reptilia'
- 'Sirenidae belongs to Meantes'
- 'Teiidae belongs to Scincomorpha'
- 'Testudinata was reranked as a subclass and belongs to Reptilia'
- 'Testudinidae belongs to Testudinata'
- 'Thoracosaurus belongs to Crocodylinae'
- 'Trionychidae belongs to Testudinata'
- 'Trionyx belongs to Trionychidae'
- 'Varanidae belongs to Platynota'
- 'Xenosauridae belongs to Diploglossa'