KulbeckiaPhenacodusMeniscotheriumHyopsodusPleuraspidotheriumArctocyonOrycteropusMegalohyraxProcaviaArsinoitheriumPhosphatheriumNumidotheriumMoeritheriumElephantoideaChambi_sirenianProrastomusEosirenEotheroidesProtosirenidae_n_gen_n_spProtosirenDugongTrichechusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Benoit_etal_2013a