Enaliarctos_emlongiPteronarctos_goedertaeProneotherium_repenningiNeotherium_mirumImagotaria_downsiOdobenus_rosmarusAllodesmus_kernensisDesmatophoca_oregonensisEotaria_cryptaPithanotaria_starriThalassoleon_mexicanusThalassoleon_macnallyaeThalassoleon_inoueiProterozetes_ulyssesCallorhinus_gilmoreiCallorhinus_ursinusZalophus_californianusEumetopias_jubatusOtaria_byroniaArctocephalus_australisMonachus_monachusErignathus_barbatusPelagiarctos_sppOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Boessenecker_et_Churchill_2015a