LesothosaurusScutellosaurusMarginocephaliaHeterodontosaurusTalenkauenThescelosaurusHypsilophodonGasparinisauraAnabisetiaMuttaburrasaurusTenontosaurusDryosaurusAnkylopollexiaOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Novas_etal_2004a