TheropodaProsauropodaPortozueloBlikanasaurusAntenonitrusTetrasauropusIsanosaurusLavinidiMarcoGongxianosaurusTazoudasaurusVulcanodonShunosaurusBarapasaurusPatagosaurusNeosauropodaOmeisaurusMamenchisaurusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Wilson_2005aa