Probactrosaurus_gobiensisBactrosaurus_johnsoniParasaurolophus_walkeriOlorotitan_arharensisMaiasaura_peeblesorumBrachylophosaurus_canadensisAcritavus_gaglarsoniGryposaurus_notabilisGryposaurus_monumentensisGryposaurus_latidensKritosaurus_navajoviusProsaurolophus_maximusProsaurolophus_blackfeetensisSaurolophus_osborniSaurolophus_angustirostrisEdmontosaurus_annectensEdmontosaurus_regalisHadrosaurus_foulkiiLophorhoton_atopusWulagasaurus_dongiKerberosaurus_manakiniKundurosaurus_nagornyiOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.McGarrity_etal_2013a