Opinions from D. J. Golz 1976
- 'Agriochoerus minimus is recombined as Protoreodon minimus'
- 'Agriochoerus pumilus is recombined as Protoreodon pumilus'
- 'Agriochoerus transmontanus is recombined as Protoreodon transmontanus'
- 'Agriotherium paradoxicus is recombined as Protoreodon paradoxicus'
- 'Camelomeryx is a subjective synonym of Leptoreodon'
- 'Chorotherium is a subjective synonym of Protoreodon'
- 'Diacodexinae belongs to Dichobunidae'
- 'Eomeryx is a subjective synonym of Protoreodon'
- 'Eotylopus belongs to Oromerycidae'
- 'Eotylopus reedi belongs to Eotylopus'
- 'Hyomeryx is a subjective synonym of Protoreodon'
- 'Hyopsodus egressus is recombined as Tapochoerus egressus'
- 'Leptomeryx minutus is recombined as Simimeryx minutus'
- 'Leptoreodon belongs to Leptotragulinae'
- 'Leptoreodon (Hesperomeryx) is an invalid subgroup of Leptoreodon'
- 'Leptoreodon (Hesperomeryx) edwardsi is recombined as Leptoreodon edwardsi'
- 'Leptoreodon leptolophus belongs to Leptoreodon'
- 'Leptoreodon major belongs to Leptoreodon'
- 'Leptoreodon marshi belongs to Leptoreodon'
- 'Leptoreodon pusillus belongs to Leptoreodon'
- 'Leptotragulinae belongs to Protoceratidae'
- 'Merycobunodon belongs to Oromerycidae'
- 'Merycobunodon littoralis belongs to Merycobunodon'
- 'Merycodesmus is a subjective synonym of Leptoreodon'
- 'Mesagriochoerus is a subjective synonym of Protoreodon'
- 'Mesagriochoerus primus is a subjective synonym of Protoreodon pumilus'
- 'Poebrodon belongs to Camelidae'
- 'Poebrodon californicus belongs to Poebrodon'
- 'Poebrodon kayi belongs to Poebrodon'
- 'Protagriochoerus is a subjective synonym of Protoreodon'
- 'Protagriochoerus annectens is a subjective synonym of Protoreodon pumilus'
- 'Protoreodon belongs to Agriochoeridae'
- 'Protoreodon minor belongs to Protoreodon'
- 'Protoreodon pacificus belongs to Protoreodon'
- 'Protoreodon parvus belongs to Protoreodon'
- 'Protoreodon pearcei belongs to Protoreodon'
- 'Protoreodon petersoni belongs to Protoreodon'
- 'Protylopus belongs to Oromerycidae'
- 'Protylopus annectens belongs to Protylopus'
- 'Protylopus pearsonensis belongs to Protylopus'
- 'Protylopus petersoni belongs to Protylopus'
- 'Protylopus robustus belongs to Protylopus'
- 'Protylopus stocki belongs to Protylopus'
- 'Simimeryx belongs to Hypertragulidae'
- 'Tapochoerus belongs to Diacodexinae'