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