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新華社開羅3月30日電(記者 徐皓夫 姚兵)由埃及曼蘇拉大學領銜的國際研究團隊近日在美國《科學》雜za誌zhi上shang發fa表biao論lun文wen說shuo,該gai團tuan隊dui通tong過guo古gu猿yuan化hua石shi鑒jian定ding,發fa現xian一yi個ge遠yuan古gu高gao等deng靈ling長chang類lei新xin屬shu種zhong,這zhe一yi發fa現xian填tian補bu了le古gu猿yuan演yan化hua史shi中zhong的de關guan鍵jian缺que口kou,並bing表biao明ming北bei非fei地di區qu曾zeng經jing出chu現xian高gao等deng靈ling長chang類lei祖zu先xian。 changqiyilaizhuliukexuelilunrenwei,gaodenglingchangleideqiyuandizhuyaozaidongfeidiqu。gongbaoshuo,gaiguyuanwuzhongdefaxianbujinbiaomingbeifeizaizaozhongxinshiyiyouguyuanfenbu,haizhengshigaixinwuzhongyutongqidongfeiguyuanwuzhongcunzaixianzhuchayi。 據ju曼man蘇su拉la大da學xue發fa布bu的de新xin聞wen公gong報bao,該gai古gu猿yuan化hua石shi出chu土tu於yu埃ai及ji北bei部bu的de莫mo格ge拉la河he穀gu化hua石shi遺yi址zhi,是shi北bei非fei地di區qu首shou個ge確que認ren的de古gu猿yuan化hua石shi。目mu前qian化hua石shi材cai料liao僅jin留liu存cun下xia頜he骨gu,但dan區qu別bie於yu同tong期qi已yi知zhi任ren何he古gu猿yuan物wu種zhong。經jing鑒jian定ding發fa現xian,該gai古gu猿yuan生sheng活huo在zai早zao中zhong新xin世shi,距ju今jin約yue1700萬至1800萬年。 公報說,研究團隊運用先進貝葉斯分析法,整合現生和滅絕古猿的解剖學特征、現生猿類DNA(脫氧核糖核酸)數據、化hua石shi地di質zhi年nian代dai,厘li清qing物wu種zhong親qin緣yuan關guan係xi與yu分fen化hua時shi間jian。分fen析xi結jie果guo顯xian示shi,相xiang較jiao於yu早zao中zhong新xin世shi所suo有you東dong非fei古gu猿yuan物wu種zhong,該gai古gu猿yuan物wu種zhong與yu現xian生sheng猿yuan類lei的de親qin緣yuan關guan係xi更geng近jin。 tuanduijinxingdeshengwudilifenxibiaoming,beifeiyuzhongdongdiquzuiyoukenengshisuoyouxianshengyuanleigongtongzuxiandeqiyuandi,yanjiurenyuantuicegaigongtongzuxianshengcunyuzaozhongxinshi。zaigaishiqi,feizhoubankuaiyuelabobankuaibeiyi,chuyuheyaoubankuaipengzhuangdemoqi,haipingmianzhouqixingbianhuaxueruohaiyangdilizuge,rangzhelichengweidongwuqianxikuosandetianranlangdao。 在此背景下,此次發現的古猿新屬種填補了此前非洲與亞歐古猿化石記錄割裂的關鍵演化缺口,證明古猿早已在該區域實現物種分化;一旦陸地連通形成,它們便可向歐洲、亞洲遷徙擴散。 |



