(Protoceratops_andrewsi,(Turanoceratops_tardabilis,Zuniceratops_christopheri,((Xenoceratops_foremostensis,(Diabloceratops_eatoni,(Avaceratops_lammersi,(Albertaceratops_nesmoi,(Spinops_sternbergorum,Sinoceratops_zhuchengensis,(Coronosaurus_brinkmani,Styracosaurus_albertensis,(Centrosaurus_apertus,(Rubeosaurus_ovatus,(Einiosaurus_procurvicornis,(Achelousaurus_horneri,(Pachyrhinosaurus_canadensis,Pachyrhinosaurus_lakustai))))))))))),(Chasmosaurus_belli,Pentaceratops_sternbergii))));