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