Opinions from E. H. Colbert 1946
- 'Anomoiodon belongs to Procolophoninae'
- 'Anomoiodon liliensterni belongs to Anomoiodon'
- 'Aristodesmus is a subjective synonym of Sclerosaurus'
- 'Diadectomorpha belongs to Cotylosauria'
- 'Hypsognathus belongs to Procolophoninae'
- 'Hypsognathus fenneri belongs to Hypsognathus'
- 'Koiloskiosaurus belongs to Procolophoninae'
- 'Koiloskiosaurus coburgiensis [misspelled as Koiloskiosaurus coburgensis] belongs to Koiloskiosaurus'
- 'Labyrinthodon ruetimeyeri belongs to Labyrinthodon' according to Wiedersheim 1878
- 'Labyrinthodon ruetimeyeri is a subjective synonym of Sclerosaurus armatus'
- 'Leptopleuron belongs to Procolophoninae'
- 'Leptopleuron lacertinum belongs to Leptopleuron'
- 'Microtheledon is a nomen dubium'
- 'Myocephalus belongs to Procolophoninae'
- 'Myocephalus crassidens belongs to Myocephalus' according to Broom 1936
- 'Myocephalus crassidens belongs to Myocephalus'
- 'Nycteroleter belongs to Nyctiphruretinae'
- 'Nycteroleter ineptus belongs to Nycteroleter'
- 'Nyctiphruretinae belongs to Procolophonidae'
- 'Nyctiphruretus belongs to Nyctiphruretinae'
- 'Nyctiphruretus acudens belongs to Nyctiphruretus'
- 'Owenetta rubidgei belongs to Owenetta'
- 'Procolophon belongs to Procolophoninae'
- 'Procolophon baini belongs to Procolophon'
- 'Procolophon trigoniceps belongs to Procolophon'
- 'Procolophonidae belongs to Diadectomorpha'
- 'Procolophoninae belongs to Procolophonidae'
- 'Sclerosaurus belongs to Procolophoninae'
- 'Sclerosaurus armatus belongs to Sclerosaurus' according to von Meyer 1857
- 'Sclerosaurus armatus belongs to Sclerosaurus'
- 'Spondylolestes belongs to Procolophoninae'
- 'Spondylolestes rubidgei belongs to Spondylolestes'
- 'Spondylolestes rubidgei belongs to Spondylolestes' according to Broom 1937
- 'Telerpeton is an objective synonym of Leptopleuron'
- 'Telerpeton elginense belongs to Telerpeton' according to G. Mantell 1852
- 'Telerpeton elginese is an objective synonym of Leptopleuron lacertinum'
- 'Thelegnathus belongs to Procolophoninae'
- 'Thelegnathus browni belongs to Thelegnathus'
- 'Thelegnathus parvus is recombined as Microtheledon parvus' according to R. Broom 1936
- 'Thelegnathus parvus is a nomen dubium'