Opinions from M. D. Uhen 2004
- 'Ancalecetus belongs to Dorudontinae'
- 'Ancalecetus simonsi belongs to Ancalecetus'
- 'Archaeoceti belongs to Cetacea'
- 'Basilosauridae belongs to Archaeoceti'
- 'Basilosaurinae belongs to Basilosauridae'
- 'Basilosaurus belongs to Basilosaurinae'
- 'Basilosaurus drazindai belongs to Basilosaurus'
- 'Basilosaurus kochii is recombined as Zygorhiza kochii'
- 'Basiloterus belongs to Basilosaurinae'
- 'Basiloterus hussaini belongs to Basiloterus'
- 'Cetacea belongs to Cetartiodactyla'
- 'Cetartiodactyla belongs to Mammalia'
- 'Chrysocetus belongs to Dorudontinae'
- 'Chrysocetus healyorum belongs to Chrysocetus'
- 'Dorudon belongs to Dorudontinae'
- 'Doryodon is a misspelling of Dorudon'
- 'Durodon is a misspelling of Dorudon'
- 'Dorudon serratus belongs to Dorudon'
- 'Dorudontidae was reranked as the subfamily Dorudontinae and belongs to Basilosauridae'
- 'Hydrarchidae is a subjective synonym of Basilosauridae'
- 'Pontogeneus belongs to Dorudontinae'
- 'Prozeuglodon is a subjective synonym of Dorudon'
- 'Prozeuglodon atrox is recombined as Dorudon atrox'
- 'Dorudon stromeri is a subjective synonym of Dorudon atrox'
- 'Prozeuglodontidae is a subjective synonym of Basilosauridae'
- 'Saghacetus belongs to Dorudontinae'
- 'Stegorhinidae is a subjective synonym of Basilosauridae'
- 'Zeuglodon brachyspondylus is recombined as Pontogeneus brachyspondylus'
- 'Zeuglodon cetoides is recombined as Basilosaurus cetoides'
- 'Dorudon intermedius is a subjective synonym of Dorudon atrox'
- 'Zeuglodon isis is recombined as Basilosaurus isis'
- 'Zeuglodon osiris is recombined as Saghacetus osiris'
- 'Zeuglodontidae is a subjective synonym of Basilosauridae'
- 'Zeuglodontinae is a subjective synonym of Basilosaurinae'
- 'Zygorhiza belongs to Dorudontinae'