IgaunodonEolambiaTelmatosaurusCorythosaurusLophorothonNaashoibitosaurusBrachylophosaurusMaiasauraGryposaurus_notabilisG_incurvimanusG_latidensG_monumentensisEdmontosaurus_sppProsaurolophus_sppSaurolophus_sppOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Gates_et_Sampson_2007a