Protocetus_atavusGeorgiacetus_vogtlensisZygorhiza_kochiiChonecetus_goedertorumAetiocetus_polydentatusEomysticetus_whitmoreiBalaena_mysticetusBalaena_montalionisEubalaena_glacialisBalaenula_astensisCaperea_marginataPelocetus_calvertensisParietobalaena_palmeriIsanacetus_laticephalusDiorocetus_hiatusCetotherium_rathkeiMixocetus_elysiusTitanocetus_sammarinensisMetopocetus_durinasusEschrichtius_robustusBalaenoptera_acutorostrataBalaenoptera_physalusBalaenoptera_musculusBalaenoptera_borealisBalaenoptera_edeniBalaenoptera_omuraiMegaptera_novaeangliaeMegaptera_hubachiMegaptera_miocaenaPlesiocetus_cortesiiMPST_240505Balaenoptera_borealinaParabalaenoptera_baulinensisMCa_240536Eschrichtioides_gastaldiiOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Bisconti_2008a