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