Opinions from D. W. Rice 2002
- 'Aetiocetidae belongs to Mysticeti'
- 'Agorophiidae belongs to Odontoceti'
- 'Albireonidae belongs to Delphinoidea'
- 'Ambulocetidae belongs to Archaeoceti'
- 'Archaeoceti belongs to Cetacea'
- 'Balaenopteridae belongs to Mysticeti'
- 'Balanadae is corrected as Balaenidae and belongs to Mysticeti'
- 'Basilosauridae belongs to Archaeoceti'
- 'Cetotheriinae was reranked as the family Cetotheriidae and belongs to Mysticeti'
- 'Dalpiazinidae belongs to Platanistoidea'
- 'Delphinidae belongs to Delphinoidea'
- 'Delphinoidea belongs to Odontoceti'
- 'Desmatophocidae belongs to Phocoidea'
- 'Desmostylidae belongs to Desmostylia'
- 'Dorudontidae belongs to Archaeoceti'
- 'Dugongidae belongs to Sirenia'
- 'Enaliarctinae was reranked as the family Enaliarctidae and belongs to Phocoidea'
- 'Eoplatanistidae belongs to Eurhinodelphinoidea'
- 'Eurhinodelphidae is corrected as Eurhinodelphinidae and belongs to Eurhinodelphinoidea'
- 'Eurhinodelphoidea is corrected as Eurhinodelphinoidea and belongs to Odontoceti'
- 'Iniana was reranked as the family Iniidae and belongs to Odontoceti'
- 'Kekenodontinae was reranked as the family Kekenodontidae and belongs to Mysticeti'
- 'Kentriodontidae belongs to Delphinoidea'
- 'Kogiidae belongs to Physeteroidea'
- 'Lipotidae belongs to Odontoceti'
- 'Llanocetidae belongs to Mysticeti'
- 'Mammalodontidae belongs to Mysticeti'
- 'Monodontidae belongs to Delphinoidea'
- 'Mysticeti belongs to Cetacea'
- 'Neobalaenidae belongs to Mysticeti'
- 'Odobaenidae is corrected as Odobenidae and belongs to Phocoidea'
- 'Odobenocetopsidae belongs to Delphinoidea'
- 'Odontoceti belongs to Cetacea'
- 'Otariina was reranked as the family Otariidae and belongs to Phocoidea'
- 'Pakicetinae was reranked as the family Pakicetidae and belongs to Archaeoceti'
- 'Phocadae is corrected as Phocidae and belongs to Phocoidea'
- 'Phocaenina was reranked as the family Phocoenidae and belongs to Delphinoidea'
- 'Physeteridae belongs to Physeteroidea'
- 'Physeteroidea belongs to Odontoceti'
- 'Platanistina was reranked as the family Platanistidae and belongs to Platanistoidea'
- 'Platanistoidea belongs to Odontoceti'
- 'Pontoporiidae belongs to Odontoceti'
- 'Prorastomidae belongs to Sirenia'
- 'Protocetidae belongs to Archaeoceti'
- 'Protosirenidae belongs to Sirenia'
- 'Remingtonocetidae belongs to Archaeoceti'
- 'Squalodelphidae is corrected as Squalodelphinidae and belongs to Platanistoidea'
- 'Squalodontidae belongs to Platanistoidea'
- 'Trichecidae is corrected as Trichechidae and belongs to Sirenia'
- 'Waipatiidae belongs to Platanistoidea'
- 'Ziphiidae belongs to Ziphioidea'
- 'Ziphioidea belongs to Odontoceti'