Pezosiren_portelliMoeritheriumPaleoparadoxia_weltoniPaleoparadoxia_tabataiAshoroa_laticostaCornwallius_sookensisDesmostylus_hesperusBehemotops_proteusBehemotops_katsuieiVanderhoofius_coalingensisOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Beatty_2009a