Leptoceratops_gracilis
Protoceratops_andrewsi
Zuniceratops_christopheri
Turanoceratops_tardabilis
Avaceratops_lammersi
Centrosaurus_apertus
Styracosaurus_albertensis
Einiosaurus_procurvicornis
Achelousaurus_horneri
Pachyrhinosaurus
Judiceratops_tigris
Chasmosaurus
Mojoceratops_perifania
Agujaceratops_mariscalensis
Pentaceratops_sternbergi
Utahceratops_gettyi
Kosmoceratops_richardsoni
Anchiceratops_ornatus
Coahuilaceratops_magnacuern
Arrhinoceratops_brachyops
Titanoceratops_ouranos
Eotriceratops_xerinsularis
Torosaurus
Triceratops