(Phiomia,(Gomphotherium,Protanancus,Archaeobelodon,(Serbelodon,(Amebelodon,Platybelodon)),(Eubelodon,(Gnathabelodon,Sinomastodon,Rhynchotherium,(Cuvieronius_hyodon,(Stegomastodon_platensis,Stegomastodon_waringi))))));