Opinions from C. S. Davis et al. 2004
- 'Caniformia belongs to Carnivora'
- 'Carnivora belongs to Mammalia'
- 'Cystophora belongs to Cystophorini'
- 'Cystophorini was reranked as a tribe and belongs to Phocinae'
- 'Erignathini belongs to Phocinae'
- 'Erignathus belongs to Erignathini'
- 'Halichoerus belongs to Phocini'
- 'Histriophoca belongs to Phocini'
- 'Hydrurga belongs to Lobodontini'
- 'Leptonychotes belongs to Lobodontini'
- 'Lobodon belongs to Lobodontini'
- 'Lobodontini belongs to Monachinae'
- 'Mirounga belongs to Miroungini'
- 'Mirounga angustirostris belongs to Mirounga' according to Gill 1866
- 'Miroungini belongs to Monachinae'
- 'Monachinae belongs to Phocidae'
- 'Monachini belongs to Monachinae'
- 'Monachus belongs to Monachini'
- 'Ommatophoca belongs to Lobodontini'
- 'Pagophilus belongs to Phocini'
- 'Phoca belongs to Phocini'
- 'Phoca barbata is recombined as Erignathus barbatus'
- 'Phoca caspica is recombined as Pusa caspica' according to Gmelin 1788
- 'Phoca caspica is recombined as Pusa caspica'
- 'Phoca cristata is recombined as Cystophora cristata'
- 'Phoca cristata belongs to Phoca' according to Erxleben 1777
- 'Phoca fasciata is recombined as Histriophoca fasciata'
- 'Phoca fasciata belongs to Phoca' according to Zimmermann 1783
- 'Phoca groenlandica belongs to Phoca' according to Erxleben 1777
- 'Phoca groenlandica is recombined as Pagophilus groenlandica'
- 'Phoca grypus belongs to Phoca' according to Fabricus 1791
- 'Phoca grypus is recombined as Halichoerus grypus'
- 'Phoca hispida is recombined as Pusa hispida'
- 'Phoca largha belongs to Phoca'
- 'Phoca largha belongs to Phoca' according to Pallas 1811
- 'Phoca monachus belongs to Phoca' according to Hermann 1779
- 'Phoca schauinslandi belongs to Phoca' according to Hermann 1779
- 'Phoca vitulina belongs to Phoca'
- 'Phoca vitulina sibirica [misspelled as Pusa siberica] belongs to Pusa'
- 'Phocadae is corrected as Phocidae and belongs to Pinnipedia'
- 'Phocinae belongs to Phocidae'
- 'Phocini belongs to Phocinae'
- 'Pusa belongs to Phocini'