吉林磐石地区鹿圈屯组的牙形刺  

Conodonts from the Lujuantun Formation Strata in Panshi Area,Jilin Province

作　　者：郎嘉彬[1] 王成源[1,2] 

机构地区：[1]吉林大学古生物学与地层学中心/东北亚生物演化与环境教育部重点实验室,长春130026 [2]中国科学院南京地质古生物研究所,南京210008

出　　处：《吉林大学学报（地球科学版）》2010年第3期603-609,共7页Journal of Jilin University：Earth Science Edition

基　　金：国家自然科学基金项目(40839910);中石化科技项目(G0800-06-ZS-324);教育部与国家外专局'111'项目(B06008)

摘　　要：吉林中部的鹿圈屯组自建组以来,一直被归入到'下石炭统'。在磐石明城附近鹿圈屯组上部的4个样品中发现的牙形刺化石,以Idiognathoides corrugatus,Id.lanei,Id.sinuatus,Id.sulcatus,Idiognathodus sinuosus等晚石炭亚纪(宾夕法尼亚亚纪)巴什基尔期典型分子为特征,表明鹿圈屯组上部存在晚石炭亚纪早期的沉积。其中Idiognathodus和Strepto gnathodus较为原始分子的出现,表明鹿圈屯组上部的时代与巴什基尔期的中、晚期相当。The Lujuantun Formation has been listed as ＂Lower Carboniferous＂ since its founding.Some conodonts are found in four samples from the upper part of Lujuantun Formation in Mingcheng,Panshi area,Jilin Province.Among them,Idiognathoides corrugatus,Id.lanei,Id.sinuatus,Id.sulcatus,Idiognathodus sinuosus are representative species of the Early Pennylvanian.Moreover,the fact that both Idiognathodus and Streptognathodus originally appear indicates that the age of the upper part of the Lujuantun Formation approximately corresponds to the middle-late Bashkirian.

关 键 词：牙形刺 鹿圈屯组 巴什基尔阶 磐石地区 吉林 

分 类 号：Q915.817[天文地球—古生物学与地层学]