Opinions from J. K. Rigby 1980
- 'Acmeodon hyoni belongs to Acmeodon'
- 'Anisonchus willeyi belongs to Anisonchus'
- 'Bessoecetor is a subjective synonym of Propalaeosinopa'
- 'Bryanictis belongs to Viverravidae'
- 'Catathlaeus is a subjective synonym of Periptychus'
- 'Catathlaeus rhabdodon is a subjective synonym of Periptychus carinidens'
- 'Chirox is a subjective synonym of Ptilodus'
- 'Chirox plicatus is a subjective synonym of Ptilodus mediaevus'
- 'Chriacus stenops is a subjective synonym of Chriacus pelvidens'
- 'Claenodon is a subjective synonym of Arctocyon'
- 'Diacodon pearcei is a subjective synonym of Prodiacodon concordiarcensis'
- 'Didymictis haydenianus is recombined as Protictis haydenianus'
- 'Didymictis primus is a subjective synonym of Protictis haydenianus'
- 'Dissacus carnifex is a subjective synonym of Dissacus navajovius'
- 'Ectypodus sylviae belongs to Ectypodus'
- 'Euprotogonia minor is a subjective synonym of Tetraclaenodon puercensis'
- 'Euprotogonia minor is recombined as Tetraclaenodon minor' according to Matthew 1897
- 'Gelastops joni belongs to Gelastops'
- 'Hyopsodus acolytus is recombined as Promioclaenus acolytus'
- 'Indrodon is a subjective synonym of Mixodectes'
- 'Indrodon malaris is recombined as Mixodectes malaris'
- 'Jepsenia is a subjective synonym of Litaletes'
- 'Jepsenia mantiensis is recombined as Litaletes mantiensis'
- 'Lipodectes pelvidens is recombined as Chriacus pelvidens'
- 'Litomylus scaphicus belongs to Litomylus'
- 'Litomylus scaphiscus is a subjective synonym of Litomylus dissentaneus'
- 'Mckennatherium fredericki belongs to Mckennatherium'
- 'Mckennatherium martinezi belongs to Mckennatherium'
- 'Mesonyx navajovius is recombined as Dissacus navajovius'
- 'Mioclaenus bucculentus is a subjective synonym of Mimotricentes subtrigonus'
- 'Mioclaenus ferox is recombined as Arctocyon ferox'
- 'Mioclaenus floverianus is a subjective synonym of Tetraclaenodon puercensis'
- 'Mioclaenus mandibularis is a subjective synonym of Anisonchus sectorius'
- 'Mioclaenus minimus is a subjective synonym of Promioclaenus acolytus'
- 'Mioclaenus sectorius is recombined as Anisonchus sectorius'
- 'Mioclaenus subtrigonus is recombined as Mimotricentes subtrigonus'
- 'Olbodotes is a subjective synonym of Mixodectes'
- 'Palaeosinopa diluculi is recombined as Propalaeosinopa diluculi'
- 'Palaeosinopa diluculi is recombined as Propalaeosinopa diluculi' according to Van Valen 1967
- 'Palenochtha weissae belongs to Palenochtha'
- 'Paleotomus milleri belongs to Paleotomus'
- 'Pantinomia belongs to '
- 'Pantinomia hilli belongs to Pantinomia'
- 'Pantinomia hilli is recombined as Prothryptacodon hilli'
- 'Phenacodus calceolatus is a subjective synonym of Tetraclaenodon puercensis'
- 'Phenacodus puercensis is recombined as Tetraclaenodon puercensis'
- 'Phenacodus puercensis is recombined as Tetraclaenodon puercensis' according to West 1976
- 'Phenacodus zuniensis is a subjective synonym of Mimotricentes subtrigonus'
- 'Plesiolestes is a subjective synonym of Palaechthon'
- 'Plesiolestes problematicus is recombined as Palaechthon problematicus'
- 'Prodiacodon concordiarcensis belongs to Prodiacodon'
- 'Prolimnocyon macfaddeni belongs to Prolimnocyon'
- 'Protictis vanvaleni is recombined as Bryanictis vanvaleni'
- 'Protogonia plicifera is a subjective synonym of Tetraclaenodon puercensis'
- 'Protogonia plicifera is a subjective synonym of Tetraclaenodon puercensis' according to West 1976
- 'Protogonia subquadrata is a subjective synonym of Tetraclaenodon puercensis'
- 'Protogonia zuniensis is a subjective synonym of Tetraclaenodon puercensis'
- 'Protogonia zuniensis belongs to Protogonia' according to Cope 1888
- 'Protogonodon criswelli belongs to Protogonodon'
- 'Ptilodus ferronensis is a subjective synonym of Ptilodus mediaevus'
- 'Simpsonictis belongs to Viverravidae'
- 'Simpsonictis jaynanneae belongs to Simpsonictis'
- 'Tetraclaenodon symbolicus is a subjective synonym of Tetraclaenodon puercensis'
- 'Tetraclaenodon symbolicus is a subjective synonym of Tetraclaenodon puercensis' according to West 1976
- 'Tetraclaenodon symbolicus belongs to Tetraclaenodon' according to Gidley 1935
- 'Torrejonia is a subjective synonym of Palaechthon'
- 'Torrejonia wilsoni is a subjective synonym of Palaechthon problematicus'
- 'Triisodon is a subjective synonym of Goniacodon'
- 'Triisodon levisianus is recombined as Goniacodon levisanus'
- 'Xanclomys belongs to Ptilodontidae'
- 'Xanclomys mcgrewi belongs to Xanclomys'
- 'Xyronomys belongs to Ptilodontidae'
- 'Xyronomys swainae belongs to Xyronomys'