Leptoceratops_gracilis

Protoceratops_andrewsi

Bagaceratops_rozhdestvenskyi

Magnirostris_dodsoni

Zuniceratops_christopheri

Turanoceratops_tardabilis

Pentaceratops_sternbergii

Chasmosaurus_belli

Machairoceratops_cronusi

Diabloceratops_eatoni

Wendiceratops_pinhornensis

Sinoceratops_zhuchengensis

Xenoceratops_foremostensis

Medusaceratops_lokii

Albertaceratops_nesmoi

Nasutoceratops_titusi

Avaceratops_lammersi

Stellasaurus_ancellae

Spinops_sternbergorum

Centrosaurus_apertus

Coronosaurus_brinkmani

Styracosaurus_ovatus

Styracosaurus_albertensis

Einiosaurus_procurvicornis

Achelousaurus_horneri

Pachyrhinosaurus_lakustai

Pachyrhinosaurus_perotorum

Pachyrhinosaurus_canadensis