Children (7 direct children, 11 direct and indirect children):
Protoceratops
(tree size 1)
Graciliceratops
(tree size 1)
Magnirostris
Magnirostris ("large beak")
Platyceratops
(tree size 1)
Platyceratops ("flat horned face")
Lamaceratops
Lamaceratops ("lama horned face")
Bagaceratops
(tree size 1)
Asiaceratopsinae