Opinions from E. Kazár 2002
- 'Aulophyseter belongs to Aulophyseterinae'
- 'Aulophyseter morricei belongs to Aulophyseter'
- 'Aulophyseter rionegrensis is an invalid subgroup of Aulophyseterinae'
- 'Aulophyseterinae belongs to Physeteridae'
- 'Diaphorocetus belongs to Physeteridae'
- 'Eudelphis mortezelensis is recombined as Scaldicetus mortezelensis'
- 'Ferecetotherium belongs to Physeteridae'
- 'Ferecetotherium kelloggi belongs to Ferecetotherium'
- 'Helvicetus belongs to Physeteridae'
- 'Helvicetus rugosus belongs to Helvicetus'
- 'Hoplocetus belongs to Physeteridae'
- 'Hoplocetus crassidens belongs to Hoplocetus'
- 'Hoplocetus minor belongs to Hoplocetus'
- 'Hoplocetus perpinguis [misspelled as Hoplocetus perpenguis] belongs to Hoplocetus'
- 'Hyperoodon pusillus is recombined as Kogia pusilla'
- 'Hyperoodon pusillus is recombined as Kogia pusilla'
- 'Hypocetus is an objective synonym of Diaphorocetus'
- 'Idiophyseter belongs to Physeterinae'
- 'Idiophyseter merriami belongs to Idiophyseter'
- 'Idiorophus belongs to Physeteridae'
- 'Kogia belongs to Kogiinae'
- 'Kogiopsis belongs to Physeteridae'
- 'Kogiopsis floridana belongs to Kogiopsis'
- 'Mesocetus poucheti is recombined as Diaphorocetus poucheti'
- 'Miokogia belongs to Physeteridae'
- 'Orycterocetus belongs to Physeterinae'
- 'Orycterocetus crocodilinus belongs to Orycterocetus'
- 'Orycterocetus quadratidens belongs to Orycterocetus'
- 'Palaeodelphis grandis is recombined as Scaldicetus grandis'
- 'Paleophoca belongs to Physeteridae'
- 'Paleophoca nystii belongs to Paleophoca'
- 'Paracetus is an objective synonym of Diaphorocetus'
- 'Paracetus mediatlanticus is recombined as Orycterocetus mediatlanticus' according to R. Kellogg 1925
- 'Paracetus mediatlanticus is recombined as Aulophyseter mediatlanticus'
- 'Paracetus mediatlanticus is recombined as Diaphorocetus mediatlanticus' according to Sellards 1915
- 'Physeter belongs to Physeterinae'
- 'Physeter breviceps is recombined as Kogia breviceps'
- 'Physeteridae belongs to Physeteroidea'
- 'Physeterinae belongs to Physeteridae'
- 'Physeteroidea belongs to Odontoceti'
- 'Physeterula belongs to Physeterinae'
- 'Physeterula dubusii belongs to Physeterula'
- 'Physetodon belongs to Physeteridae'
- 'Physetodon baileyi belongs to Physetodon'
- 'Physodon leccense is recombined as Scaldicetus leccense'
- 'Physodon patagonicus is recombined as Idiorophus patagonicus'
- 'Placoziphius belongs to Physeterinae'
- 'Praekogia belongs to Kogiinae'
- 'Praekogia cedrosensis belongs to Praekogia'
- 'Preaulophyseter belongs to Physeteridae'
- 'Preaulophyseter gualichensis belongs to Preaulophyseter'
- 'Priscophyseter belongs to Physeteridae'
- 'Priscophyseter typus belongs to Priscophyseter'
- 'Prophyseter belongs to Physeteridae'
- 'Prophyseter dolloi belongs to Prophyseter'
- 'Scaldicetus belongs to Physeteridae'
- 'Scaldicetus bolzanensis belongs to Scaldicetus'
- 'Scaldicetus caretti belongs to Scaldicetus'
- 'Scaldicetus crispus belongs to Scaldicetus'
- 'Scaldicetus inflatus belongs to Scaldicetus'
- 'Scaldicetus lodgei belongs to Scaldicetus'
- 'Scaldicetus macgeei belongs to Scaldicetus'
- 'Scaldicetus shigensis belongs to Scaldicetus'
- 'Scaphokogia belongs to Kogiinae'
- 'Scaphokogia cochlearis belongs to Scaphokogia'
- 'Scaptodon belongs to Physeteridae'
- 'Scaptodon lodderi belongs to Scaptodon'
- 'Schizodelphis elongatus is recombined as Miokogia elongatus'
- 'Thalassocetus belongs to Physeteridae'
- 'Thalassocetus antwerpiensis belongs to Thalassocetus'