Opinions from O. Lambert 2005
- 'Anoplonassa belongs to Ziphiidae'
- 'Aporotus belongs to Ziphiidae'
- 'Aporotus affinis is a subjective synonym of Aporotus recurvirostris'
- 'Aporotus dicyrtus belongs to Aporotus'
- 'Aporotus recurvirostris belongs to Aporotus'
- 'Belemnoziphius belongs to Ziphiidae'
- 'Belemnoziphius recurvus is recombined as Ziphirostrum recurvus'
- 'Beneziphius belongs to Ziphiidae'
- 'Beneziphius brevirostris belongs to Beneziphius'
- 'Berardius belongs to Ziphiidae'
- 'Champsodelphis scaldensis is a nomen nudum'
- 'Choneziphius belongs to Ziphiidae'
- 'Choneziphius liops belongs to Choneziphius'
- 'Choneziphius trachops is a subjective synonym of Choneziphius planirostris'
- 'Dioplodon hemixem is a nomen nudum'
- 'Eboroziphius belongs to Ziphiidae'
- 'Hyperoodon belongs to Ziphiidae'
- 'Indopacetus belongs to Ziphiidae'
- 'Mesoplodon belongs to Ziphiidae'
- 'Messapicetus belongs to Ziphiidae'
- 'Mioziphius is a subjective synonym of Ziphirostrum'
- 'Mioziphius belgicus is a subjective synonym of Ziphirostrum marginatum'
- 'Ninoziphius belongs to Ziphiidae'
- 'Odontoceti belongs to Cetacea'
- 'Pelycorhamphus belongs to Ziphiidae'
- 'Pelycorhamphus pertortus belongs to Pelycorhamphus'
- 'Proroziphius chonops is recombined as Choneziphius chonops'
- 'Proroziphius macrops is recombined as Choneziphius macrops'
- 'Proroziphius is a subjective synonym of Choneziphius'
- 'Squaloziphius belongs to Odontoceti'
- 'Synostodon is an invalid subgroup of Ziphiidae'
- 'Tasmacetus belongs to Ziphiidae'
- 'Tusciziphius belongs to Ziphiidae'
- 'Ziphiidae was reranked as the tribe Ziphiina and belongs to Odontoceti'
- 'Ziphiodelphis belongs to Eurhinodelphidae'
- 'Ziphiopsis is a nomen dubium'
- 'Ziphiopsis phymatodes is a nomen dubium'
- 'Ziphiopsis servatus is a nomen dubium'
- 'Ziphirostrum belongs to Ziphiidae'
- 'Ziphirostrum gracile is a subjective synonym of Ziphirostrum marginatum'
- 'Ziphirostrum laevigatum is a subjective synonym of Ziphirostrum marginatum'
- 'Ziphirostrum marginatum belongs to Ziphirostrum'
- 'Ziphirostrum turninense belongs to Ziphirostrum'
- 'Ziphius belongs to Ziphiidae'
- 'Ziphius cuvieri belongs to Ziphius' according to R. Owen 1870
- 'Ziphius cuvieri is a subjective synonym of Choneziphius planirostris'
- 'Ziphius planirostris is recombined as Choneziphius planirostris'