Late Tremadoc and Early Floian Graptolites from Central Hunan,China  

作　　者：LIMing FENG Hongzhen JI Xinxin LILixia 

机构地区：[1]Institute of Geology, Chinese Academy of Geological Sciences, Beijing 10003 7, China [2], Department of Earth Sciences, Nanjing University, Nanjing 210093, China

出　　处：《Acta Geologica Sinica(English Edition)》2010年第6期1343-1364,共22页地质学报（英文版）

基　　金：supported by the Basic Outlay of Scientific Research Work from Ministry of Science and Technology(No.J0905)

摘　　要：Fourteen graptolite species of the Late Tremadoc and Early Floian are described from the Nanba section in the Yiyang area,Hunan Province.Among them,Paradelograptus onubensis, Kiaerograptus bulmani,K.kutchini and Paratemnograptus isolatus of the Late Tremadoc are first found in China.Based on the current graptolite materials,the correspondingly complete graptolite zones of Upper Tremadocian in China are recognized as follows（in ascending order）：the Adelograptus tenellus Zone,the Aorograptus victoriae Zone,the Araneograptus murrayi Zone and the Hunnegraptus copiosus Zone.In the Nanba section,the Hunnegraptus copiosus Zone is overlain directly by the Tetragraptus approximatus Zone,there is no hiatus below the base of Floian.Fourteen graptolite species of the Late Tremadoc and Early Floian are described from the Nanba section in the Yiyang area,Hunan Province.Among them,Paradelograptus onubensis, Kiaerograptus bulmani,K.kutchini and Paratemnograptus isolatus of the Late Tremadoc are first found in China.Based on the current graptolite materials,the correspondingly complete graptolite zones of Upper Tremadocian in China are recognized as follows（in ascending order）：the Adelograptus tenellus Zone,the Aorograptus victoriae Zone,the Araneograptus murrayi Zone and the Hunnegraptus copiosus Zone.In the Nanba section,the Hunnegraptus copiosus Zone is overlain directly by the Tetragraptus approximatus Zone,there is no hiatus below the base of Floian.

关 键 词：GRAPTOLITES TAXONOMY BIOZONATION Late Tremadoc and Early Floian HUNAN China 

分 类 号：Q915.813.1[天文地球—古生物学与地层学]