(Squalodon,((Nenga,(Tasmacetus,((Nazcacetus,(Xhosacetus,(Pterocetus,(Khoikhoicetus,(Indopacetus,(Africanacetus,(Ihlengesi,((Mesoplodon_bidens,((Mesoplodon_slangkopi,Mesoplodon_grayi),(Mesoplodon_layardi,Mesoplodon_densirostris))),(Mesoplodon_mirus,Hyperoodon))))))))),(Ziphirostrum,(Choneziphius,(Ziphius,(Izikoziphius_rossi,Izikoziphius_angustus))))))),(Microberardius,(Berardius,Archaeoziphius))));