Opinions from C. B. Schultz and C. H. Falkenbach 1956
- 'Bathygenys belongs to Oreonetinae'
- 'Bathygenys alpha belongs to Bathygenys'
- 'Limnenetes belongs to Oreonetinae'
- 'Limnenetes anceps is recombined as Oreonetes anceps'
- 'Limnenetes platyceps belongs to Limnenetes'
- 'Merycoidodon platycephalus is recombined as Platyochoerus platycephalus'
- 'Merycoidodon platycephalus belongs to Merycoidodon' according to Thorpe 1921
- 'Miniochoerinae belongs to Merycoidodontidae'
- 'Miniochoerus belongs to Miniochoerinae'
- 'Miniochoerus (Paraminiochoerus) belongs to Miniochoerus'
- 'Miniochoerus (Paraminiochoerus) helprini belongs to Miniochoerus (Paraminiochoerus)'
- 'Miniochoerus (Paraminiochoerus) ottensi belongs to Miniochoerus (Paraminiochoerus)'
- 'Miniochoerus battlecreekensis belongs to Miniochoerus'
- 'Miniochoerus cheyennensis belongs to Miniochoerus'
- 'Miniochoerus nicholsae belongs to Miniochoerus'
- 'Miniochoerus starkensis belongs to Miniochoerus'
- 'Oreodon affinis is recombined as Miniochoerus (Paraminiochoerus) affinis'
- 'Oreodon coloradoensis is a subjective synonym of Miniochoerus (Paraminiochoerus) affinis'
- 'Oreodon gracile is recombined as Miniochoerus (Paraminiochoerus) gracilis'
- 'Oreodon minor is a subjective synonym of Miniochoerus (Paraminiochoerus) gracilis'
- 'Oreonetes belongs to Oreonetinae'
- 'Oreonetes anceps douglassi belongs to Oreonetes anceps'
- 'Oreonetinae belongs to Merycoidodontidae'
- 'Parastenopsochoerus belongs to Miniochoerinae'
- 'Parastenopsochoerus conversensis belongs to Parastenopsochoerus'
- 'Platyochoerus belongs to Miniochoerinae'
- 'Platyochoerus hatcreekensis belongs to Platyochoerus'
- 'Platyochoerus heartensis belongs to Platyochoerus'
- 'Stenopsochoerus belongs to Miniochoerinae'
- 'Stenopsochoerus (Pseudostenopsochoerus) belongs to Stenopsochoerus'
- 'Stenopsochoerus (Pseudostenopsochoerus) chadronensis belongs to Stenopsochoerus (Pseudostenopsochoerus)'
- 'Stenopsochoerus (Pseudostenopsochoerus) douglasensis belongs to Stenopsochoerus (Pseudostenopsochoerus)'
- 'Stenopsochoerus berardae belongs to Stenopsochoerus'
- 'Stenopsochoerus joderensis belongs to Stenopsochoerus'
- 'Stenopsochoerus reideri belongs to Stenopsochoerus'
- 'Stenopsochoerus sternbergi belongs to Stenopsochoerus'