8 ▁square ▁yards ▁( 2 4 9 ▁m ²). ▁ ▁De ▁l ' Is le ▁had ▁to ▁dig ▁through ▁ ▁of ▁material ▁to ▁get ▁to ▁the ▁level ▁where ▁the ▁arte fact s ▁were ▁found . ▁ ▁At ▁this ▁time ▁it ▁was ▁thought ▁that ▁there ▁were ▁two ▁separate ▁car v ings ▁of ▁rein de er ▁as ▁it ▁was ▁not ▁obvious ▁that ▁the ▁two ▁pieces ▁fitted ▁together . ▁ ▁De ▁l ' Is le ▁wrote ▁a ▁paper ▁on ▁his ▁discovery , ▁and ▁his ▁finds ▁were ▁exhib ited ▁in ▁ 1 8 6 7 ▁at ▁the ▁Ex position ▁Univers elle ▁in ▁Paris . ▁People ▁were ▁intr igu ed ▁to ▁see ▁the ▁s oph istic ation ▁of ▁his ▁finds ▁and ▁this ▁sculpt ure ▁in ▁particular . ▁The ▁car v ings ▁were ▁remarkable ▁in ▁that ▁they ▁illustrate ▁rein de er , ▁which ▁no ▁longer ▁live ▁in ▁France . ▁D ating ▁was ▁possible ▁as ▁the ▁two ▁rein de er ▁were ▁car ved ▁in ▁the ▁iv ory ▁of ▁an ▁ext inct ▁animal . ▁This ▁dated ▁the ▁find ▁as ▁ancient ▁and ▁required ▁a ▁re - evalu ation ▁of ▁the ▁life ▁of ▁humans ▁in ▁the ▁late ▁Ice ▁Age . ▁This ▁find ▁was ▁particularly ▁ast ounding , ▁as ▁at ▁that ▁time ▁no ▁cave ▁paint ings ▁had ▁been ▁discovered , ▁and ▁it ▁was ▁to ▁be ▁some ▁years ▁before ▁those ▁that ▁were ▁found ▁were ▁accepted ▁as ▁genu ine . ▁In ▁fact ▁it ▁was ▁only ▁the ▁work ▁of ▁Henry ▁Christ y ▁and ▁Ed ou ard ▁L art et ▁that ▁had ▁recently ▁persu aded ▁informed ▁opinion ▁that