Protoceratops_andrewsi

Zuniceratops_christopheri

Triceratops_horridus

Chasmosaurus_belli

Albertaceratops_nesmoi

Styracosaurus_albertensis

Centrosaurus_apertus

Einiosaurus_procurvicornis

Achelousaurus_horneri

Pachyrhinosaurus_lakustai

Pachyrhinosaurus_canadensis