(Phenacodus,(Hallensia,(Ghazijhippus,(((Cardiolophus,(Homogalax,(Lambdotherium,(Eotitanops,(Eomoropus,Litolophus,(Moropus,Lophiodon)))))),((Propalaeotherium,(Palaeotherium,Plagiolophus)),(Heptodon,Helaletes,Hyrachyus,(Deperetellidae,(Lophialetes,Schlosseria))))),(Protorohippus,(Eohippus,Xenicohippus))))));