Protocetus_atavusGeorgiacetus_vogtlensisDorudon_atroxZygorhyza_kochii_USNM_11962Mammalodon_colliveriAetiocetus_weltoniMicromysticetus_rothauseniEomysticetus_whitmoreiCaperea_marginataBalaenula_astensisEubalaena_glacialisBalena_mysticetusBalaenella_brachyrhynusPelocetus_calvertensisAglaocetus_patulusIsanacetus_laticephalusUranocetus_gramensisParietobalaena_palmeriAglaocetus_moreniTitanocetus_sammarinensisCophocetus_oregonensisDiorocetus_hiatusJoumocetus_shimitzuiCetotherium_rathkiiPiscobalaena_nanaMixocetus_elysiusMetopocetus_durinasusHerentalia_nigraHerpetocetus_transatlanticusHerpetocetus_brambleiHerpetocetus_scaldiensisHerpetocetus_sp_JapanNannocetus_eremusUSNM_187416Eschrichtius_robustusEschrichtioides_gastaldiiArchaeschrichtius_ruggieroiArchaebalaenoptera_castriarquatiParabalaenoptera_baulinensisMegaptera_novaeangliaeBalaenoptera_physalusBalaenoptera_acutorostrataBalaenoptera_edeniBalaenoptera_borealisBalaenoptera_musculusBalaenoptera_siberiProtororqualus_cuvieriPlesiobalaenoptera_quarantelliiMegaptera_hubachiDiunatans_luctoretemergoOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Bisconti_2015a