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江苏镇江大力山下三叠统上青龙组的牙形石
石油与天然气地质
1989年 10卷 第No.2期
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Title
CONODONTS OF THE TRIASSIC UPPER QINGLONG FORMATION IN DALISHAN SECTION,ZHENJIANG JIANGSU PROVINCE
Authors
Ding Liansheng
Bao Dexian
摘要
在镇江大力山下三叠统上青龙组中发现了大量牙形石,计15个属,34个种(其中8个未定种,3个相似种)。自下而上可分为两个牙形石组合带:(1),(2) 组合带.时代为奥伦尼克晚期,生活于浅水陆棚相。
Abstract
A lot of conodonts are found in Upper Qinglong Formation of LowerTriassic in Dalishan section.They consist of 15 genera and 34 species, and can be divided into two conodont assem blage zones:1. A.Z.2. A.Z.These correspond to late stage of Olenekian in age,and developed inshallow shelf environment.
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