▁into ▁European ▁Str uth ios aur inae ▁and ▁North ▁American ▁N od osa ur inae ▁by ▁the ▁end ▁of ▁the ▁A pt ian ▁provides ▁a ▁re vised ▁date ▁for ▁the ▁isol ation ▁of ▁the ▁contin ents ▁from ▁each ▁other ▁with ▁rising ▁se ale vel . ▁ ▁Str uth ios aur inae ▁is ▁one ▁of ▁the ▁longest - last ing ▁groups ▁of ▁an k yl osa uri ans . ▁They ▁range ▁from ▁Europ elta ▁at ▁ 1 1 2 ▁Ma ▁to ▁Str uth ios aur us , ▁which ▁lived ▁until ▁the ▁upp erm ost ▁C ret ace ous , ▁or ▁ 6 6 ▁Ma . ▁In ▁between ▁those ▁two ▁early ▁and ▁late ▁str uth ios aur ines ▁are ▁the ▁gener a ▁An op l osa urus ▁and ▁Hung ar osa urus . ▁Hung ar osa urus ▁is ▁younger , ▁at ▁about ▁ 8 5 ▁Ma , ▁from ▁the ▁late ▁Sant onian ▁of ▁the ▁C seh b ány a ▁Form ation . ▁An op l osa urus ▁is ▁a ▁fair ▁amount ▁older , ▁at ▁about ▁ 1 0 0 ▁Ma , ▁from ▁the ▁late ▁Alb ian ▁Cambridge ▁Gre ens and . ▁ ▁See ▁also ▁▁ ▁Tim eline ▁of ▁an k yl osa ur ▁research ▁ ▁References ▁ ▁External ▁links ▁ ▁Category : N od osa ur ids ▁Category : D in osa urs ▁of ▁Europe ▁Category : C ret ace ous ▁din osa urs ▁Category : F oss il ▁tax a ▁described ▁in ▁ 1 9 2 3 <0x0A> </s> ▁L j ung by ▁IF