Hypsilophodon_foxii

Stegoceras_validum

Chaoyangsaurus_youngi

Psittacosaurus_mongoliensis

Archaeoceratops_oshimai

Asiaceratops_salsopaludalis

Montanoceratops_ceorhynchus

Udanoceratops_tschizhovi

Leptoceratops_gracilis

Microceratops_gobiensis

Protoceratops_andrewsi

Bagaceratops_rozhdestvenskyi

Zuniceratops_christopheri

Triceratops_horridus

Centrosaurus_apertus