Opinions from J. H. Geisler et al. 2011
- 'Aetiocetidae belongs to Mysticeti'
- 'Aetiocetus belongs to Aetiocetidae'
- 'Aetiocetus cotylalveus belongs to Aetiocetus'
- 'Agorophius belongs to Odontoceti'
- 'Albireo belongs to Albireonidae'
- 'Albireo whistleri belongs to Albireo'
- 'Albireonidae belongs to Delphinoidea'
- 'Archaeodelphis belongs to Odontoceti'
- 'Archaeodelphis patrius belongs to Archaeodelphis'
- 'Atocetus belongs to Delphinida'
- 'Balaena marginata is recombined as Caperea marginata'
- 'Balaena novaeangliae is recombined as Megaptera novaeangliae'
- 'Balaena physalus is recombined as Balaenoptera physalus'
- 'Balaenomorpha belongs to Chaeomysticeti'
- 'Balaenoptera belongs to Balaenopteridae'
- 'Balaenoptera robusta is recombined as Eschrichtius robustus'
- 'Balaenopteridae belongs to Balaenopteroidea'
- 'Balaenopteroidea belongs to Plicogulae'
- 'Balanadae is corrected as Balaenidae and belongs to Balaenomorpha'
- 'Berardius belongs to Ziphiidae'
- 'Brachydelphis belongs to Inioidea'
- 'Brachydelphis mazeasi belongs to Brachydelphis'
- 'Caperea belongs to Neobalaenidae'
- 'Cetotheriopsinae was reranked as the family Cetotheriopsidae and belongs to Eomysticetoidea'
- 'Chaeomysticeti belongs to Mysticeti'
- 'Chonecetus belongs to Aetiocetidae'
- 'Chonecetus goedertorum belongs to Chonecetus'
- 'Delphinida belongs to Synrhina'
- 'Delphinidae belongs to Delphinoidea'
- 'Delphininae belongs to Delphinidae'
- 'Delphinoidea belongs to Delphinida'
- 'Delphinus belongs to Delphininae'
- 'Delphinus (Grampus) was reranked as Grampus and belongs to Globicephalinae'
- 'Delphinus (Grampus) acutus is recombined as Leucopleurus acutus'
- 'Delphinus blainvillei is recombined as Pontoporia blainvillii'
- 'Delphinus geoffrensis is recombined as Inia geoffrensis'
- 'Delphinus griseus is recombined as Grampus griseus'
- 'Delphinus orca is recombined as Orcinus orca'
- 'Delphinus phocoena is recombined as Phocoena phocoena'
- 'Diochotichus vanbenedeni is recombined as Notocetus vanbenedeni'
- 'Diorocetus belongs to Balaenomorpha'
- 'Diorocetus hiatus belongs to Diorocetus'
- 'Eomysticetidae belongs to Eomysticetoidea'
- 'Eomysticetoidea belongs to Chaeomysticeti'
- 'Eomysticetus belongs to Eomysticetidae'
- 'Eomysticetus whitmorei belongs to Eomysticetus'
- 'Eschrichtiidae belongs to Balaenopteroidea'
- 'Eurhinodelphidae is corrected as Eurhinodelphinidae and belongs to Synrhina'
- 'Eurhinodelphis bossi is recombined as Xiphiacetus bossi'
- 'Globicephala belongs to Globicephalinae'
- 'Globiocephalidae was reranked as the subfamily Globicephalinae and belongs to Delphinidae'
- 'Inia belongs to Iniidae'
- 'Iniana was reranked as the family Iniidae and belongs to Inioidea'
- 'Inioidea belongs to Delphinida'
- 'Janjucetus belongs to Mammalodontidae'
- 'Janjucetus hunderi belongs to Janjucetus'
- 'Kentriodon belongs to Kentriodontidae'
- 'Kentriodon pernix belongs to Kentriodon'
- 'Kentriodontidae belongs to Delphinida'
- 'Kogia belongs to Kogiidae'
- 'Kogiidae belongs to Physeteroidea'
- 'Lagenorhynchus (Leucopleurus) was reranked as Leucopleurus and belongs to Delphinidae'
- 'Lipotes belongs to Lipotidae'
- 'Lipotidae belongs to Delphinida'
- 'Mammalodon belongs to Mammalodontidae'
- 'Mammalodon colliveri belongs to Mammalodon'
- 'Mammalodontidae belongs to Mysticeti'
- 'Megaptera belongs to Balaenopteridae'
- 'Megaptera (Eschrichtius) was reranked as Eschrichtius and belongs to Eschrichtiidae'
- 'Mesoplodon belongs to Ziphiidae'
- 'Micromysticetus belongs to Cetotheriopsidae'
- 'Micromysticetus rothauseni belongs to Micromysticetus'
- 'Monodontidae belongs to Monodontoidae'
- 'Monodontoidae belongs to Delphinida'
- 'Mysticeti was reranked as a unranked clade and belongs to Neoceti'
- 'Neobalaenidae belongs to Balaenoidea'
- 'Ninoziphius belongs to Ziphiidae'
- 'Ninoziphius platyrostris belongs to Ninoziphius'
- 'Notocetus belongs to Squalodelphinidae'
- 'Odontoceti belongs to Neoceti'
- 'Orca (Orcaella) was reranked as Orcaella and belongs to Delphinidae'
- 'Orca (Orcaella) brevirostris is recombined as Orcaella brevirostris'
- 'Orcinus belongs to Delphinidae'
- 'Parabalaenoptera belongs to Balaenopteridae'
- 'Parabalaenoptera baulinensis belongs to Parabalaenoptera'
- 'Parapontoporia belongs to Lipotidae'
- 'Parapontoporia wilsoni belongs to Parapontoporia'
- 'Patriocetus belongs to Odontoceti'
- 'Patriocetus kazakhstanicus belongs to Patriocetus'
- 'Pelocetus belongs to Balaenomorpha'
- 'Pelocetus calvertensis belongs to Pelocetus'
- 'Phocaena is corrected as Phocoena and belongs to Phocoenidae'
- 'Phocaena crassidens is recombined as Pseudorca crassidens'
- 'Phocaenina was reranked as the family Phocoenidae and belongs to Monodontoidae'
- 'Phocoena dalli is recombined as Phocoenoides dalli'
- 'Phocoenoides belongs to Phocoenidae'
- 'Physeter belongs to Physeteridae'
- 'Physeter macrocephalus belongs to Physeter'
- 'Physeteridae belongs to Physeteroidea'
- 'Physeteroidea belongs to Odontoceti'
- 'Pithanodelphis nasalis is recombined as Atocetus nasalis'
- 'Platanistina was reranked as the family Platanistidae and belongs to Platanistoidea'
- 'Platanistoidea belongs to Synrhina'
- 'Plicogulae belongs to Balaenomorpha'
- 'Pliopontos belongs to Inioidea'
- 'Pliopontos littoralis belongs to Pliopontos'
- 'Pontoporiidae belongs to Inioidea'
- 'Prosqualodon belongs to Odontoceti'
- 'Prosqualodon davidis belongs to Prosqualodon'
- 'Simocetus belongs to Odontoceti'
- 'Simocetus rayi belongs to Simocetus'
- 'Squalodelphidae belongs to Platanistoidea'
- 'Squalodon belongs to Squalodontidae'
- 'Squalodon calvertensis belongs to Squalodon'
- 'Squalodontidae belongs to Odontoceti'
- 'Squaloziphius belongs to Odontoceti'
- 'Squaloziphius emlongi belongs to Squaloziphius'
- 'Stenodelphis sternbergi is recombined as Parapontoporia sternbergi'
- 'Synrhina belongs to Odontoceti'
- 'Tasmacetus belongs to Ziphiidae'
- 'Tasmacetus shepherdi belongs to Tasmacetus'
- 'Tursio truncatus is recombined as Tursiops truncatus'
- 'Tursiops belongs to Delphininae'
- 'Waipatia belongs to Waipatiidae'
- 'Waipatia maerewhenua belongs to Waipatia'
- 'Waipatiidae belongs to Odontoceti'
- 'Xenorophidae belongs to Odontoceti'
- 'Xenorophus belongs to Xenorophidae'
- 'Xenorophus sloanii belongs to Xenorophus'
- 'Xiphiacetus belongs to Eurhinodelphinidae'
- 'Zarhachis belongs to Platanistidae'
- 'Zarhachis flagellator belongs to Zarhachis'
- 'Zeuglodon pygmaeus is recombined as Agorophius pygmaeus'
- 'Ziphiidae belongs to Synrhina'