SeymouriidaeDiadectomorphaCaseaOphiacodonEdaphosauridaeSphenacodontidaeGorgonopsiaProcynosuchusMorganucodonGlyptodonGlyptotheriumDoedicurusPanochthusDasypusZaedyusCaptorhinidaePaleothyrisAraeoscelidiaClaudiosaurusYounginiformesKuehneosauridaeCoahomasuchusDesmatosuchusTypothoraxParatypothoraxPseudopalatusRutiodonProtosuchusAkanthosuchusSimosuchusGoniopholisMahajangasuchusAlligatorCrocodylusCaimanGavialisEuoplocephalusPinacosaurusSauropeltaStegosaurusScelidosaurusScutellosaurusMalagasytitanosauridSaltasaurusMalititanosauridProganochelysPseudemysGeocheloneChelydraTrionyxBaenaSphenodonHelodermaCoruciaTiliquaCordylusZonosaurusAnguisOphisaurusGerrhonotusElgariaGlyptosaurinaeMesosauridaeMillerettidaeAnthodonScutosaurusBradysaurusPareiasaurusProcolophonOwenettaPlacodusEosauropterygiaCyamodontoideaRhyncosauriaTrilophosaurusChoristoderaProlacertiformesAcleistorhinusLanthanosuchidaeMacroleterOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Hill_2005a