(Hypsilophodon,(Stegoceras,(Yinlong,(((Bagaceratops,Graciliceratops,Protoceratops,Yamaceratops,Koreaceratops,Liaoceratops,Aquilops,Auroraceratops,Ajkaceratops,(Asiaceratops,(Cerasinops,(Montanaceratops,(Prenoceratops,(Leptoceratops,Udanoceratops,(Zhuchengceratops,(Unescoceratops,Gryphoceratops))))))),(Zuniceratops,(Turanoceratops,((Centrosaurus,Diabloceratops),(Triceratops,Chasmosaurus)))),(Archaeoceratops,Helioceratops)),(Psittaco_mongol,Psittaco_sinen)),(Chaoyangsaurus,Xuanhuaceratops)))));