Ordovician chitinozoan diversification events in China

被引：16
|
作者：
Wang, XF [1 ]
Chen, XH [1 ]
机构：
[1] CGS, Ctr Stratig & Palaeontol, Yichang 443003, Peoples R China
来源：
SCIENCE IN CHINA SERIES D-EARTH SCIENCES | 2004年 / 47卷 / 10期
基金：
中国国家自然科学基金;
关键词：
chitinozoan; Ordovician; diversification event;
D O I：
10.1360/02yd0177
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Correlative study of the Ordovician chitinozoan biostratigraphy in China with graptolite and conodont biozones, and comprehensive analysis of the sequence- and event-stratigraphic indicated that 17 chitinozoan zones and 5 main chitinozoan diversification events subsequently occurring could be recognized in the Ordovician System of China. The 5 events comprise: event 1-appearance of the earliest Ordovician chitinozoans, event 2-appearance of C. symmetrica, event 3-juvenile radiation of chitinozoans, event 4-appearance of chitinozoans with high diversity, and event 5-development of chitinozoans of deep-water facies. The age and feature of each event and its relation with the sea-level change and other geological event are discussed.
引用
收藏
页码：874 / 879
页数：6
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