CAJ | 학술논문

为研究热河生物群的鸟类、爬行类和被子植物的早期演化、辐射迁移、生物多样性及其协同进化,笔者在建昌盆地测制了九佛堂组剖面,并系统采集了以珍稀化石为重点的生物化石.结合前人研究成果,将九佛堂组自下而上分为第一段至第三段,其中九佛堂组第一段西店层含鸟类、爬行类和龟类等珍稀化石,尚见介形类化石Cypridea decorosa,C. jianchanensis,Yumenia jianchanensis,Limnocypridea slundensis,L. levigata,L. rara等,表明该层的介形类化石与喀左九佛堂小孤山-烧锅地剖面及朝阳县波罗赤小北山-黄道营子剖面的九佛堂组第一段下部介形类化石组合面貌基本一致,其所在层位亦应相当.
위연구열하생물군적조류、파행류화피자식물적조기연화、복사천이、생물다양성급기협동진화,필자재건창분지측제료구불당조부면,병계통채집료이진희화석위중점적생물화석.결합전인연구성과,장구불당조자하이상분위제일단지제삼단,기중구불당조제일단서점층함조류、파행류화구류등진희화석,상견개형류화석Cypridea decorosa,C. jianchanensis,Yumenia jianchanensis,Limnocypridea slundensis,L. levigata,L. rara등,표명해층적개형류화석여객좌구불당소고산-소과지부면급조양현파라적소북산-황도영자부면적구불당조제일단하부개형류화석조합면모기본일치,기소재층위역응상당.
For studying birds,reptiles and angiosperms early evolution,radiation movement,biodiversity and synergetic evolution,authors measured a part of the Jiufotang Formation section,and systematically collected in precious fossils as key-point object. As a research results,this paper synthesize predecessors results,the Jiufotang Formation of the Lower Cretaceous is divided into 1st to 3rd members in ascending order. In which,Xidian bed of 1st member of the Jiufotang Formation contains birds,reptiles and turtles precious fossils. There also found many ostracods:Cypridea decorosa,C. jianchanensis,Yumenia jianchanensis,Limnocypridea slundensis,L. levigata,L. rara etc. These ostracods fossil assemblages indicate that this bed can correlate with section of Xiaogushan-Shaoguodi Jiufotang Kazuo and lower part of 1st member of the Jiufotang Formation at Xiaobeishan-Huangdaoyingzi section of Boluochi Chaoyang Country,both horizons are approximately same.