DissacusPachyaenaSinonyxPakicetusAmbulocetusDalanistesRemingtoncetusRhodocetusGaviacetusEocetusBabiacetusGeorgiacetusProtocetusBasilosaurusSaghacetusZygorhizaDorudonChrysocetusOdontocetiMysticetiOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Uhen_et_Gingerich_2001a