Opinions from I. Koretsky 2001
- 'Acrophoca belongs to Lobodontini'
- 'Acrophoca longirostris belongs to Acrophoca'
- 'Arctoidea was reranked as a infraorder and belongs to Caniformia'
- 'Callophoca belongs to Monachini'
- 'Callophoca obscura belongs to Callophoca'
- 'Caniformia belongs to Carnivora'
- 'Cryptophoca belongs to Phocinina'
- 'Cystophora belongs to Cystophorinae'
- 'Cystophorina is corrected as Cystophorinae and belongs to Phocidae'
- 'Erignathini belongs to Phocinae'
- 'Erignathus belongs to Erignathini'
- 'Gryphoca belongs to Phocinina'
- 'Gryphoca similis belongs to Gryphoca'
- 'Halichoerus belongs to Phocinina'
- 'Histriophoca belongs to Histriophocina'
- 'Histriophoca alekseevi belongs to Histriophoca'
- 'Histriophocina belongs to Phocini'
- 'Homiphoca belongs to Lobodontini'
- 'Hydrurga belongs to Lobodontini'
- 'Leptonychotes belongs to Lobodontini'
- 'Leptophoca belongs to Phocinina'
- 'Leptophoca lenis belongs to Leptophoca'
- 'Lobodon belongs to Lobodontini'
- 'Lobodontini belongs to Monachinae'
- 'Mesotaria ambigua is a subjective synonym of Callophoca obscura'
- 'Messiphoca belongs to Monachini'
- 'Messiphoca mauretanica belongs to Messiphoca'
- 'Miophoca belongs to Cystophorinae'
- 'Miophoca vetusta belongs to Miophoca'
- 'Mirounga belongs to Cystophorinae'
- 'Mirounga angustirostris belongs to Mirounga'
- 'Monachinae belongs to Phocidae'
- 'Monachini belongs to Monachinae'
- 'Monachopsis belongs to Phocinina'
- 'Monachus belongs to Monachini'
- 'Monotherium belongs to Monachinae'
- 'Monotherium aberratum belongs to Monotherium'
- 'Monotherium affine belongs to Monotherium'
- 'Monotherium delognii belongs to Monotherium'
- 'Monotherium maeotica is a subjective synonym of Cryptophoca maeotica'
- 'Ommatophoca belongs to Lobodontini'
- 'Ommatophoca rossii [misspelled as Ommatophoca rossi] belongs to Ommatophoca'
- 'Otaria weddellii is recombined as Leptonychotes weddelli' according to Gill 1872
- 'Otaria weddellii is recombined as Leptonychotes weddelli'
- 'Pagophilus belongs to Histriophocina'
- 'Periptychus argentinus is recombined as Properiptychus argentinus'
- 'Phoca belongs to Phocinina'
- 'Phoca barbata is recombined as Erignathus barbatus'
- 'Phoca bessarabica belongs to Phoca' according to Simonescu 1925
- 'Phoca bessarabica is an invalid subgroup of Phocidae'
- 'Phoca carcinophaga is recombined as Lobodon carcinophagus'
- 'Phoca caspica is recombined as Pusa caspica'
- 'Phoca cristata is recombined as Cystophora cristata'
- 'Phoca fasciata is recombined as Histriophoca fasciata'
- 'Phoca groenlandica is recombined as Pagophilus groenlandica'
- 'Phoca grypus is recombined as Halichoerus grypus'
- 'Phoca hispida is recombined as Pusa hispida'
- 'Phoca holitschensis is a subjective synonym of Praepusa vindobonensis'
- 'Phoca holitschensis [misspelled as Phoca halithensis] belongs to Phoca' according to Alekseev 1942
- 'Phoca halithensis is a misspelling of Phoca holitschensis'
- 'Phoca holitschensis [misspelled as Phoca holitchensis] belongs to Phoca' according to King 1964
- 'Phoca holitchensis is a misspelling of Phoca holitschensis'
- 'Phoca insularis is a subjective synonym of Phoca largha'
- 'Phoca insularis belongs to Phoca' according to Belkin 1964
- 'Phoca largha belongs to Phoca'
- 'Phoca leonina is recombined as Mirounga leonina'
- 'Phoca leptonyx is recombined as Hydrurga leptonyx'
- 'Phoca maeotica is recombined as Cryptophoca maeotica'
- 'Phoca monachus is recombined as Monachus monachus'
- 'Phoca novorossica is an invalid subgroup of Phocidae'
- 'Phoca pontica is recombined as Monachopsis pontica'
- 'Phoca sarmatica is recombined as Pontophoca sarmatica'
- 'Phoca schauinslandi is recombined as Monachus schauinslandi'
- 'Phoca tropicalis is recombined as Monachus tropicalis'
- 'Phoca viennensis is a subjective synonym of Praepusa vindobonensis'
- 'Phoca viennensis antiqua belongs to Phoca viennensis' according to Blainville 1842
- 'Phoca viennensis antiqua is an invalid subgroup of Praepusa vindobonensis'
- 'Phoca vindobonensis is recombined as Praepusa vindobonensis'
- 'Phoca vitulina belongs to Phoca'
- 'Phoca vitulina sibirica belongs to Phoca vitulina' according to Gmelin 1788
- 'Phoca vitulina sibirica belongs to Phoca vitulina'
- 'Phoca vitulinoides belongs to Phoca'
- 'Phoca wymani is recombined as Monotherium wymani'
- 'Phocadae is corrected as Phocidae and belongs to Phocoidea'
- 'Phocanella belongs to Phocinina'
- 'Phocanella minor is a subjective synonym of Phocanella pumila'
- 'Phocinae belongs to Phocidae'
- 'Phocini belongs to Phocinae'
- 'Phocinina belongs to Phocini'
- 'Phocoidea belongs to Arctoidea'
- 'Piscophoca belongs to Monachinae'
- 'Piscophoca pacifica belongs to Piscophoca'
- 'Platyphoca belongs to Erignathini'
- 'Platyphoca vulgaris belongs to Platyphoca'
- 'Pliophoca belongs to Monachini'
- 'Pliophoca etrusca belongs to Pliophoca'
- 'Pontophoca belongs to Monachini'
- 'Praepusa belongs to Phocinina'
- 'Praepusa pannonica belongs to Praepusa'
- 'Praepusa tarchankutica is a subjective synonym of Praepusa vindobonensis'
- 'Prionodelphis capensis is recombined as Homiphoca capensis'
- 'Properiptychus belongs to Monachini'
- 'Prophoca belongs to Phocinina'
- 'Prophoca proxima belongs to Prophoca'
- 'Prophoca rousseaui is recombined as Monotherium rousseaui'
- 'Pusa belongs to Phocinina'
- 'Sarmatonectes belongs to Phocinina'
- 'Sarmatonectes sintsovi belongs to Sarmatonectes'