Opinions from E. D. Mitchell 1968
- 'Alachtherium belongs to Odobeninae'
- 'Allodesmidae was reranked as the family Allodesminae and belongs to Otariidae'
- 'Allodesmus belongs to Allodesminae'
- 'Arctocephalina is corrected as Arctocephalini and belongs to Otariinae'
- 'Arctocephalus belongs to Arctocephalini'
- 'Atopotarus belongs to Allodesminae'
- 'Callorhinus belongs to Arctocephalini'
- 'Desmatophoca belongs to Desmatophocinae'
- 'Desmatophocinae belongs to Otariidae'
- 'Dusignathinae belongs to Otariidae'
- 'Eumetopias belongs to Otariini'
- 'Eumetopias kishidai is a subjective synonym of Eumetopias californianus'
- 'Eumetopias sinanoensis is a subjective synonym of Allodesmus kernensis'
- 'Eumetopias watasei belongs to Eumetopias' according to Matsumoto 1925
- 'Eumetopias watasei is recombined as Oriensarctos watasei'
- 'Imagotaria belongs to Imagotariinae'
- 'Imagotaria downsi belongs to Imagotaria'
- 'Imagotariinae belongs to Otariidae'
- 'Neophoca belongs to Otariini'
- 'Odobeninae belongs to Otariidae'
- 'Odobenus belongs to Odobeninae'
- 'Oriensarctos belongs to Otariidae'
- 'Otaria belongs to Otariini'
- 'Otariinae belongs to Otariidae'
- 'Otariini belongs to Otariinae'
- 'Phocarctos belongs to Otariini'
- 'Pithanotaria belongs to Arctocephalini'
- 'Pliopedia belongs to Otariidae'
- 'Pliopedia pacifica belongs to Pliopedia'
- 'Pontoleon magnus is recombined as Pontolis magnus'
- 'Pontolis belongs to Otariidae'
- 'Prorosmarus belongs to Odobeninae'
- 'Trichecodon belongs to Odobeninae'
- 'Zalophus belongs to Otariini'