, ▁it ▁was ▁defined ▁to ▁include ▁din osa ur ▁tax a ▁now ▁considered ▁to ▁be ▁pol ac anth ids , ▁a ▁p ach y ce phal osa ur ▁and ▁A can th oph olis , ▁a ▁genus ▁that ▁is ▁widely ▁considered ▁to ▁be ▁dub ious . ▁A can th oph ol idae ▁and ▁A can th oph ol inae ▁are ▁now ▁dub ious ▁groups ▁since ▁the ▁valid ity ▁of ▁A can th oph olis ▁has ▁changed . ▁ ▁Ph y log eny ▁Histor ically , ▁Str uth ios aur inae ▁has ▁been ▁considered ▁a ▁junior ▁syn onym ▁of ▁the ▁family ▁N od osa ur idae ▁by ▁Walter ▁P . ▁Co omb s ▁in ▁ 1 9 7 8 ▁and ▁T aty ana ▁T uman ova ▁in ▁ 1 9 8 7 , ▁or ▁a ▁sister ▁cla de ▁to ▁Ed mont oni inae , ▁Pan op l osa ur inae , ▁Ste g op elt inae , ▁and ▁Sau rop elt inae ▁by ▁T racy ▁L . ▁Ford ▁in ▁ 2 0 0 0 . ▁Kirk land ▁and ▁his ▁colle agues ▁followed ▁Ford ▁in ▁using ▁Str uth ios aur inae ▁as ▁a ▁cla de ▁of ▁bas al ▁nod osa ur ids , ▁but ▁concluded ▁that ▁the ▁only ▁other ▁sub family ▁of ▁N od osa ur idae ▁was ▁N od osa ur inae . ▁According ▁to ▁Kirk land ▁et ▁al ., ▁A can th oph ol inae ▁was ▁not ▁an ▁acceptable ▁classification ▁for ▁the ▁new ▁cla de ▁of ▁previously ▁un recogn ized ▁nod osa ur