(Morganuccodon,(Kuehneotherium,(Gobiotheriodon,(Tinodon,(Maotherium,Zhangheotherium,(Spalacotherium,(Akidolestes,(Symmetrolestes,(Spalacotheroides,(Yaverlestes,((Heishanlestes,Lactodens),(Spalacotheridium,(Spalacolestes,Symmetrodontoides)))))))))))));