An Update of Conodonts in the Induan-Olenekian Boundary Strata at West Pingdingshan Section,Chaohu,Anhui Province  

作　　者：赵来时 童金南 张素新 孙知民 

机构地区：[1]State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences,Wuhan 430074, China [2]Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China

出　　处：《Journal of China University of Geosciences》2008年第3期207-216,共10页中国地质大学学报（英文版）

基　　金：the National Natural Science Foundation of China (Nos. 40621002, 90714010, 40574028);the State Key Laboratory of Geological Processes and Mineral Resources (GPMR2007).

摘　　要：The Lower Triassic in Chaohu （巢湖） area, Anhui （安徽） Province, China, is well developed and its sequence is typical in South China. After a brief introduction of the Induan-Olenekian boundary of Chaohu, this article presents some new data on conodonts. More than ten times of conodont samplings and investigations have recovered thousands of conodont specimens, which are especially rich in the Induan-Olenekian boundary strata at the West Pingdingshan Section in Chaohu City, Anhui Province. The most distinctive forms are the conodonts of the Neospathodus dieneri group and N. waageni group. The first occurrence of N. waageni eowaageni, which is regarded as the indicator of the Induan-Olenekian boundary, is situated at 40.49 m above the base of Yinkeng （殷坑） Formation. Some key conodonts and seven new specimens are introduced.The Lower Triassic in Chaohu （巢湖） area, Anhui （安徽） Province, China, is well developed and its sequence is typical in South China. After a brief introduction of the Induan-Olenekian boundary of Chaohu, this article presents some new data on conodonts. More than ten times of conodont samplings and investigations have recovered thousands of conodont specimens, which are especially rich in the Induan-Olenekian boundary strata at the West Pingdingshan Section in Chaohu City, Anhui Province. The most distinctive forms are the conodonts of the Neospathodus dieneri group and N. waageni group. The first occurrence of N. waageni eowaageni, which is regarded as the indicator of the Induan-Olenekian boundary, is situated at 40.49 m above the base of Yinkeng （殷坑） Formation. Some key conodonts and seven new specimens are introduced.

关 键 词：CONODONT Induan-Olenekian boundary Lower Triassic Chaohu. 

分 类 号：Q915[天文地球—古生物学与地层学]