Protoceratops_andrewsi

Zuniceratops_christopheri

Turanoceratops_tardabilis

Sinoceratops_zhuchengensis

Avaceratops_lammersi

Albertaceratops_nesmoi

Diabloceratops_eatoni

Pentaceratops_sternbergii

Chasmosaurus_belli

Spinops_sternbergorum

Styracosaurus_albertensis

Centrosaurus_brinkmani

Centrosaurus_apertus

Rubeosaurus_ovatus

Einiosaurus_procurvicornis

Achelousaurus_horneri

Pachyrhinosaurus_lakustai

Pachyrhinosaurus_canadensis