Iguanodon_bernissartensisBactrosaurus_johnsoniLambeosaurus_lambeiHypacrosaurus_altispinusMaiasaura_peeblesorumBrachylophosaurus_canadensisGryposaurus_notabilisEdmontosaurus_annectensKerberosaurus_manakiniProsaurolophus_maximusSaurolophus_osborniOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Bell_2011a