Protoceratops_andrewsi

Zuniceratops_christopheri

Turanoceratops_tardabilis

Pentaceratops_sternbergii

Chasmosaurus_belli

Xenoceratops_foremostensis

Diabloceratops_eatoni

Avaceratops_lammersi

Albertaceratops_nesmoi

Spinops_sternbergorum

Centrosaurus_apertus

Styracosaurus_albertensis

Coronosaurus_brinkmani

Sinoceratops_zhuchengensis

Rubeosaurus_ovatus

Einiosaurus_procurvicornis

Achelousaurus_horneri

Pachyrhinosaurus_lakustai

Pachyrhinosaurus_canadensis