HypsilophodonIguanodonOuranosaurusFukuisaurusAltirhinusEolambiaProbactrosaurusEquijubusProtohadrosTelmatosaurusBactrosaurusLevnesoviaTaniusAralosaurusTsintaosaurusJaxartosaurusNipponosaurusAmurosaurusLambeosaurusCorythosaurusHypacrosaurusOlorotitanParasaurolophusCharonosaurusLophorhothonKritosaurusMaiasauraBrachylophosaurusGryposaurusKerberosaurusSaurolophusProsaurolophusEdmontosaurusK_australisJintasaurusYunganglongNanyangosaurusShuangmiaosaurusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Wang_etal_2013e