(Zygorhiza,(Agorophius,(Eudelphis,((Acrophyseter,(Zygophyseter,Brygmophyseter)),(Placoziphius,Livyatan,Albicetus,(Orycterocetus,((Physeterula,(Aulophyseter,Physeter)),(Aprixokogia,(Thalassocetus,(Scaphokogia,(Praekogia,Nanokogia,(Kogia_pris,(Kogia_breviceps,Kogia_sima)))))))))))));