IguanodonProbactrosaurusEolambiaProtohadrosTelmatosaurusK_australisCorythosaurusEdmontosaurusGryposaurusHypacrosaurusLambeosaurusLophorhothonNaashoibitosaurusNipponosaurusParasaurolophusProsaurolophusSaurolophusTsintaosaurusNanningosaurusBrachylophosaurusMaiasauraOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Mo_etal_2007a