Euparkeria_capensisMarasuchus_liloensisHerrerasaurusPisanosaurus_mertiiAbrictosaurus_consorsBMNH_A100Echinodon_becklesiiFruitadens_haagarorumHeterodontosaurus_tuckiLycorhinus_angustidensEocursor_parvusLesothosaurus_diagnosticusStormbergia_dangershoekiAgilisaurus_louderbackiHexinlusaurus_multidensOthnieliosaurus_consorsBugenasaura_infernalisHypsilophodon_foxiiOrodromeus_makelaiYandusaurus_hongheensisZephyrosaurus_schaffiWannanosaurus_yansiensisTianyulongThescelosaurus_neglectusScutellosaurus_lawleriEmausaurus_ernstiiScelidosaurus_harrisoniiStegosauriaAnkylosauriaAnabisetia_saldiviaiTalenkauen_santacrucensisRhabdodontidaeTenontosaurus_tilletiTenontosaurus_dossiDryosauridaeAnkylopollexiaGasparinisaura_cincosaltensisParksosaurus_warreniMicropachycephalosaurus_hongtuyanensisStenopelix_valdensisChaoyangosaurus_youngiYinlong_downsiPsittacosauridaeLiaoceratops_yanzigouensisArchaeoceratops_oshimaiUnnamed_taxon_Coronosauria_plus_LeptoceratopsidaeGoyocephale_lattimoreiHomalocephale_calathocercosPachycephalosauridaeHaya_grivaChangchunsaurus_parvusJeholosaurus_shangyuanensisOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Makovicky_etal_2011a