HaptodusDimetrodonTetraceratopsRaranimusBiarmosuchusHipposaurusHerpetoskylaxLycaenodonLemurosaurusProburnetiaBurnetiaSyodonTitanophoneusStenocybusStyracocephalusJonkeriaEstemmenosuchusBiseridensPatranomodonSuminiaGorgonopsLycaenopsCyonosaurusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Liu_etal_2009a