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