SqualodonXhosacetus_n_genPterocetus_n_genKhoikhoicetus_n_genIndopacetusAfricanacetus_n_genIhlengesi_n_genMesoplodon_bidensMesoplodon_slangkopi_n_spMesoplodon_grayiMesoplodon_layardiMesoplodon_densirostrisMesoplodon_mirusHyperoodonZiphiusIzikoziphius_rossiIzikoziphius_angustus_n_genNenga_n_genTasmacetusMicroberardius_n_genBerardiusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Bianucci_etal_2007a