idae ▁has ▁also ▁been ▁subject ▁to ▁frequent ▁revision . ▁A ▁study ▁by ▁Lov el ace , ▁Hart man ▁and ▁Wahl ▁in ▁ 2 0 0 8 ▁found ▁that ▁Su uw asse a ▁and ▁Sup ers aur us ▁were ▁relatives ▁of ▁A pat osa urus , ▁within ▁the ▁sub family ▁A pat osa ur inae . ▁However , ▁a ▁subsequent ▁analysis ▁by ▁Whit lock ▁in ▁ 2 0 1 1 ▁showed ▁that ▁Sup ers aur us ▁is ▁slightly ▁closer ▁to ▁Di pl od ocus ▁than ▁to ▁A pat osa urus , ▁and ▁that ▁Su uw asse a ▁is ▁actually ▁a ▁primitive ▁dic ra e osa ur id . ▁ ▁The ▁sub family ▁Di pl od oc inae , ▁was ▁ere cted ▁to ▁include ▁Di pl od ocus ▁and ▁its ▁closest ▁relatives , ▁including ▁Bar osa urus . ▁The ▁Portuguese ▁Din he iros aur us ▁and ▁the ▁African ▁T orn ier ia ▁have ▁also ▁been ▁identified ▁as ▁close ▁relatives ▁of ▁Di pl od ocus ▁by ▁some ▁authors . ▁ ▁Cl ad ogram ▁of ▁the ▁Di pl od oc idae ▁after ▁Tsch opp , ▁Mate us , ▁and ▁B enson ▁( 2 0 1 5 ). ▁ ▁Dist ingu ishing ▁an atom ical ▁features ▁ ▁A ▁diagn osis ▁is ▁a ▁statement ▁of ▁the ▁an atom ical ▁features ▁of ▁an ▁organ ism ▁( or ▁group ) ▁that ▁collect ively ▁distinguish ▁it ▁from ▁all ▁other ▁organ isms . ▁Some , ▁but ▁not ▁all , ▁of ▁the ▁features ▁in ▁a ▁diagn osis ▁are ▁also ▁aut ap omorph ies ▁-