AncestorMonotremataPolyprotodontaDiprotodontaPaucituberculataEdentataLagomorphaInsectivoraMacroscelideaScandentiaPrimatesDermopteraMicrochiropteraMegachiropteraRodentiaCetaceaPerissodactylaArtiodactylaCarnivoraHyracoideaSireniaOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Johnson_et_Kirsch_1993abJohnson_et_Kirsch_1993aa