HypsilophodonStegocerasYinlongLiaoceratopsYamaceratopsArchaeoceratopsAsiaceratopsCerasinopsMontanoceratopsPrenoceratopsLeptoceratopsUdanoceratopsZuchengceratops_inexpectusGraciliceratopsBagaceratopsProtoceratopsZuniceratopsCentrosaurusTriceratopsPsit_mongolPsit_sinensisChaoyangsaurusXuanhuaceratopsOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Xu_etal_2010ba