Iguanodon_bernissartensisEolambia_caroljonesaEquijubus_normaniProbactrosaurus_gobiensisProtohadros_byrdiBactrosaurus_johnsoniGilmoreosaurus_mongoliensisTanius_sinensisGlishades_ericksoniCedrorestes_crichtoniFukuisaurus_tetoriensisShuangmiaosaurus_gilmoreiNanyangosaurus_zhugeiiJinzhousaurus_yangiPenelopognathus_weishampeliTethyshadros_insularisHadrosaurus_foulkiiTelmatosaurus_transsylvanicusLophorhothon_atopusWulagasaurus_dongiSahaliyania_elunchunorumAmurosaurus_riabininiAralosaurus_tuberiferusBrachylophosaurus_canadensisMaiasaura_peeblesorumTwo_Medicine_saurolophineCharonosaurus_jiayinensisCorythosaurus_casuariusCorythosaurus_intermediusHypacrosaurus_stebingeriHypacrosaurus_altispinusLambeosaurus_lambeiLambeosaurus_magnicristatusEdmontosaurus_annectensEdmontosaurus_regalisKerberosaurus_manakiniLambeosaurus_laticaudusVelafrons_coahuilensisJaxartosaurus_aralensisKritosaurus_navajoviusGryposaurus_notabilisGryposaurus_latidensGryposaurus_monumentensisOlorotitan_ararhensisParasaurolophus_walkeriParasaurolophus_cyrtocristatusParasaurolophus_tubicenProsaurolophus_maximusSecernosaurus_koerneriSalitral_Moreno_saurolophineBig_Bend_UTEP_saurolophineSaurolophus_osborniSaurolophus_angustirostrisShantungosaurus_giganteusPararhabdodon_isonensisTsintaosaurus_spinorhinusSabinos_saurolophineJuvenile_Glishades_ericksoni_AMNH_27414Juvenile_Gryposaurus_notabilis_CMN_8784Juvenile_Prosaurolophus_maximus_TMP_1983_dot_064_dot_0003Juvenile_Maiasaura_peeblesorum_ROM_65035OsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Campione_etal_2013a