Opinions from V. B. Scheffer and D. W. Rice 1963
- 'Arctocephalina was reranked as the subfamily Arctocephalinae and belongs to Otariidae'
- 'Arctocephalus belongs to Arctocephalinae'
- 'Arctocephalus doriferus belongs to Arctocephalus'
- 'Arctocephalus doriferus belongs to Arctocephalus' according to Wood Jones 1925
- 'Arctocephalus forsteri belongs to Arctocephalus'
- 'Arctocephalus hookeri is recombined as Neophoca hookeri'
- 'Balaena belongs to Balaenidae'
- 'Balaena ampullata is recombined as Hyperoodon ampullatus'
- 'Balaena gibbosa is recombined as Eschrichtius gibbosus'
- 'Balaena glacialis belongs to Balaena'
- 'Balaena marginata is recombined as Caperea marginata'
- 'Balaena musculus is recombined as Balaenoptera musculus'
- 'Balaena novaeangliae is recombined as Megaptera novaeangliae'
- 'Balaena physalus is recombined as Balaenoptera physalus'
- 'Balaenoptera belongs to Balaenopteridae'
- 'Balaenoptera acutorostrata belongs to Balaenoptera'
- 'Balaenoptera borealis belongs to Balaenoptera'
- 'Balaenoptera edeni belongs to Balaenoptera'
- 'Balaenopteridae belongs to Mysticeti'
- 'Balanadae is corrected as Balaenidae and belongs to Mysticeti'
- 'Berardius belongs to Ziphiidae'
- 'Berardius arnuxii is corrected as Berardius arnouxi and belongs to Berardius'
- 'Berardius bairdii is corrected as Berardius bairdi and belongs to Berardius'
- 'Berardius hectori is recombined as Mesoplodon hectori'
- 'Callorhinus belongs to Arctocephalinae'
- 'Canoidea [misspelled as Caenoidea] belongs to Carnivora'
- 'Caperea belongs to Balaenidae'
- 'Cephalorhynchus belongs to Delphininae'
- 'Cystophora belongs to Cystophorinae'
- 'Cystophorina is corrected as Cystophorinae and belongs to Phocidae'
- 'Delphinapterus belongs to Monodontinae'
- 'Delphinapterus borealis is recombined as Lissodelphis borealis'
- 'Delphinidae belongs to Odontoceti'
- 'Delphininae belongs to Delphinidae'
- 'Delphinus belongs to Delphininae'
- 'Delphinus (Grampus) was reranked as Grampus and belongs to Delphininae'
- 'Delphinus (Grampus) acutus is recombined as Lagenorhynchus acutus'
- 'Delphinus (Grampus) heavisidii is recombined as Cephalorhynchus heavisidei'
- 'Lagenorhynchus obscurus is a subjective synonym of Lagenorhynchus cruciger'
- 'Delphinus aduncus is recombined as Tursiops aduncus'
- 'Delphinus albirostris is recombined as Lagenorhynchus albirostris'
- 'Delphinus blainvillei is recombined as Pontoporia blainvillei'
- 'Delphinus bredanensis is recombined as Steno bredanensis'
- 'Delphinus capensis belongs to Delphinus'
- 'Delphinus chinensis is recombined as Sotalia chinensis'
- 'Delphinus coeruleoalbus is recombined as Stenella caeruleoalba'
- 'Delphinus commersonii is recombined as Cephalorhynchus commersoni'
- 'Delphinus cruciger is recombined as Lagenorhynchus cruciger'
- 'Delphinus delphis belongs to Delphinus'
- 'Delphinus densirostris is recombined as Mesoplodon densirostris'
- 'Delphinus eutropia is recombined as Cephalorhynchus eutropia'
- 'Sotalia fluviatilis is a subjective synonym of Sotalia pallida'
- 'Delphinus frontalis is recombined as Stenella frontalis'
- 'Delphinus gangeticus is recombined as Platanista gangetica'
- 'Delphinus geoffrensis is recombined as Inia geoffrensis'
- 'Delphinus griseus is recombined as Grampus griseus'
- 'Delphinus guianensis is recombined as Sotalia guianensis'
- 'Delphinus leucas is recombined as Delphinapterus leucas'
- 'Delphinus longirostris is recombined as Stenella longirostris'
- 'Delphinus melas is recombined as Globicephala melaena'
- 'Delphinus orca is recombined as Orcinus orca'
- 'Delphinus peronii is recombined as Lissodelphis peroni'
- 'Delphinus phocaenoides is recombined as Neophocaena phocaenoides'
- 'Delphinus phocoena is recombined as Phocoena phocoena'
- 'Delphinus plagiodon is recombined as Stenella plagiodon'
- 'Delphinus plumbeus is recombined as Sotalia plumbea'
- 'Delphinus roseiventris belongs to Delphinus'
- 'Sotalia sinensis is a subjective synonym of Sotalia chinensis'
- 'Lagenorhynchus supercilliosus is a subjective synonym of Lagenorhynchus cruciger'
- 'Dioplodon europaeus is recombined as Mesoplodon europaeus'
- 'Dugong belongs to Dugonginae'
- 'Dugongidae belongs to Sirenia'
- 'Dugonginae belongs to Dugongidae'
- 'Electra hectori is recombined as Cephalorhynchus hectori'
- 'Enhydra belongs to Lutrinae'
- 'Erignathini belongs to Phocinae'
- 'Erignathus belongs to Erignathini'
- 'Eschrichtiidae belongs to Mysticeti'
- 'Eumetopias belongs to Otariinae'
- 'Feresa attenuata belongs to Feresa'
- 'Globicephala belongs to Delphininae'
- 'Globicephala scammonii belongs to Globicephala'
- 'Globicephalus macrorhynchus is recombined as Globicephala macrorhyncha'
- 'Gypsophoca tropicalis is recombined as Arctocephalus tropicalis'
- 'Halichoerus belongs to Phocini'
- 'Histriophoca belongs to Phocini'
- 'Hydrodamalidae was reranked as the subfamily Hydrodamalinae and belongs to Dugongidae'
- 'Hydrodamalis belongs to Hydrodamalinae'
- 'Hydrurga belongs to Lobodontini'
- 'Hyperoodon belongs to Ziphiidae'
- 'Hyperoodon planifrons belongs to Hyperoodon'
- 'Inia belongs to Iniinae'
- 'Iniinae belongs to Platanistidae'
- 'Kogia belongs to Kogiinae'
- 'Kogiinae belongs to Physeteridae'
- 'Lagenodelphis belongs to Delphininae'
- 'Lagenodelphis hosei belongs to Lagenodelphis'
- 'Lagenorhynchus belongs to Delphininae'
- 'Lagenorhynchus electra belongs to Lagenorhynchus'
- 'Leptonychotes belongs to Lobodontini'
- 'Lipotes belongs to Iniinae'
- 'Lipotes vexillifer belongs to Lipotes'
- 'Lissodelphis belongs to Delphininae'
- 'Lobodon belongs to Lobodontini'
- 'Lobodontini belongs to Monachinae'
- 'Lutrinae belongs to Mustelidae'
- 'Manati gigas is recombined as Hydrodamalis gigas'
- 'Manatus inunguis is recombined as Trichechus inunguis'
- 'Megaptera belongs to Balaenopteridae'
- 'Megaptera (Eschrichtius) was reranked as Eschrichtius and belongs to Eschrichtiidae'
- 'Mesoplodon belongs to Ziphiidae'
- 'Mesoplodon gervaisi is a subjective synonym of Mesoplodon europaeus'
- 'Mesoplodon ginkgodens belongs to Mesoplodon'
- 'Mesoplodon grayi belongs to Mesoplodon'
- 'Mesoplodon mirum is corrected as Mesoplodon mirus and belongs to Mesoplodon'
- 'Mesoplodon pacificus belongs to Mesoplodon'
- 'Mesoplodon stejnegeri belongs to Mesoplodon'
- 'Mirounga belongs to Cystophorinae'
- 'Mirounga angustirostris belongs to Mirounga'
- 'Monachinae belongs to Phocidae'
- 'Monachini belongs to Monachinae'
- 'Monachus belongs to Monachini'
- 'Monodon belongs to Monodontinae'
- 'Monodon monoceros belongs to Monodon'
- 'Monodontinae belongs to Delphinidae'
- 'Mustela lutris is recombined as Enhydra lutris'
- 'Mustelidae belongs to Caenoidea'
- 'Mysticeti belongs to Cetacea'
- 'Neophoca belongs to Otariinae'
- 'Neophocaena belongs to Delphininae'
- 'Odobaenidae is corrected as Odobenidae and belongs to Otarioidea'
- 'Odobenus belongs to Odobenidae'
- 'Odontoceti belongs to Cetacea'
- 'Ommatophoca belongs to Lobodontini'
- 'Ommatophoca rossii is corrected as Ommatophoca rossi and belongs to Ommatophoca'
- 'Orca (Feresa) was reranked as Feresa and belongs to Delphininae'
- 'Orca (Orcaella) was reranked as Orcaella and belongs to Delphininae'
- 'Orca (Orcaella) brevirostris is recombined as Orcaella brevirostris'
- 'Orcinus rectipinna is a subjective synonym of Orcinus orca'
- 'Orcinus belongs to Delphininae'
- 'Otaria belongs to Otariinae'
- 'Otaria (Arctophoca) philippii is recombined as Arctocephalus philippii'
- 'Otaria byronia belongs to Otaria'
- 'Otaria californiana is recombined as Zalophus californianus'
- 'Otaria cinerea is recombined as Neophoca cinerea'
- 'Otaria weddellii is recombined as Leptonychotes weddelli'
- 'Otariina was reranked as the family Otariidae and belongs to Otarioidea'
- 'Otariinae belongs to Otariidae'
- 'Otarioidea belongs to Pinnipedia'
- 'Pagophilus belongs to Phocini'
- 'Phoca belongs to Phocini'
- 'Phoca australis is recombined as Arctocephalus australis'
- 'Phoca barbata is recombined as Erignathus barbatus'
- '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 groenlandicus'
- 'Phoca grypus is recombined as Halichoerus grypus'
- 'Phoca hispida is recombined as Pusa hispida'
- 'Phoca jubata is recombined as Eumetopias jubata'
- 'Phoca leonina is recombined as Mirounga leonina'
- 'Phoca leptonyx is recombined as Hydrurga leptonyx'
- 'Phoca monachus is recombined as Monachus monachus'
- 'Phoca pusilla is recombined as Arctocephalus pusillus'
- 'Phoca rosmarus is recombined as Odobenus rosmarus'
- 'Phoca schauinslandi is recombined as Monachus schauinslandi'
- 'Phoca tropicalis is recombined as Monachus tropicalis'
- 'Phoca ursina is recombined as Callorhinus ursinus'
- 'Phoca vitulina belongs to Phoca'
- 'Phoca vitulina sibirica is recombined as Pusa sibirica'
- 'Phocadae is corrected as Phocidae and belongs to Phocoidea'
- 'Phocaena is corrected as Phocoena and belongs to Delphininae'
- 'Phocaena crassidens is recombined as Pseudorca crassidens'
- 'Phocaena dioptrica is recombined as Phocoena dioptrica'
- 'Phocaena spinipinnis is recombined as Phocoena spinipinnis'
- 'Phocinae belongs to Phocidae'
- 'Phocini belongs to Phocinae'
- 'Phocoena dalli is recombined as Phocoenoides dalli'
- 'Phocoena sinus belongs to Phocoena'
- 'Phocoenoides belongs to Delphininae'
- 'Phocoenoides truei belongs to Phocoenoides'
- 'Phocoidea belongs to Pinnipedia'
- 'Physeter belongs to Physeterinae'
- 'Physeter bidens is recombined as Mesoplodon bidens'
- 'Physeter breviceps is recombined as Kogia breviceps'
- 'Physeter catodon belongs to Physeter'
- 'Physeteridae belongs to Odontoceti'
- 'Physeterinae belongs to Physeteridae'
- 'Platanista belongs to Platanistinae'
- 'Platanistina was reranked as the family Platanistidae and belongs to Odontoceti'
- 'Platanistinae belongs to Platanistidae'
- 'Pontoporia belongs to Pontoporiinae'
- 'Pontoporiinae belongs to Platanistidae'
- 'Prodelphinus is a subjective synonym of Stenella'
- 'Pseudorca belongs to Delphininae'
- 'Pusa belongs to Phocini'
- 'Sagmatias amblodon is a subjective synonym of Lagenorhynchus cruciger'
- 'Sotalia belongs to Delphininae'
- 'Sotalia borneensis belongs to Sotalia'
- 'Sotalia brasiliensis belongs to Sotalia'
- 'Sotalia pallidus is corrected as Sotalia pallida and belongs to Sotalia'
- 'Sotalia tucuxi is a subjective synonym of Sotalia pallida'
- 'Steno belongs to Delphininae'
- 'Steno (Stenella) was reranked as Stenella and belongs to Delphininae'
- 'Steno attenuatus is recombined as Stenella attenuata'
- 'Stenodelphininae is a subjective synonym of Pontoporiinae'
- 'Stenodelphis is a subjective synonym of Pontoporia'
- 'Stenopontistes zambesicus is a subjective synonym of Steno bredanensis'
- 'Tasmacetus belongs to Ziphiidae'
- 'Tasmacetus shepherdi belongs to Tasmacetus'
- 'Trichechus belongs to Trichechidae'
- 'Trichechus dugon is recombined as Dugong dugon'
- 'Trichechus manatus belongs to Trichechus'
- 'Trichechus senegalensis belongs to Trichechus'
- 'Trichecidae is corrected as Trichechidae and belongs to Sirenia'
- 'Tursio truncatus is recombined as Tursiops truncatus'
- 'Tursiops belongs to Delphininae'
- 'Zalophus belongs to Otariinae'
- 'Ziphiidae belongs to Odontoceti'
- 'Ziphius belongs to Ziphiidae'
- 'Ziphius cavirostris belongs to Ziphius'
- 'Ziphius layardii is recombined as Mesoplodon layardi'