Opportunistic Trace Fossils from the Changhia Formation (Third Series, Cambrian), Western Henan
详细信息
- 责任者：Qi Yongan (Henan Key Laboratory of Biogenic Traces and Sedimentary Minerals ; School of Resources and Environment ; Henan Polytechnic University ; Jiaozuo 454000 ; China) ; Li Da
- 刊名：Acta Palaeontologica Sinica
- 出版年：2013
- 卷期：52(1)
- 关键词：遗迹化石 ; ichnofossils ; 河南 ; Henan Province
- 页码：p.80-85
- 图表：illus., 19 refs.
- 分类号：1100
- issnNo：ISSN0001-6616
- isbnNo：CN32-1188/Q
摘要
Abundant trace fossils of Planolites montanus are reported from the oolitic limestones of the Changhia Formation ( Third Series , Cambrian ), Western Henan.The burrows display horizontal to low-angle inclined structures without preferential orientation.They are characterized by no linings and are filled with yellow-brown marl.The oolitic limestone is an indicator of high energy carbonate shoal belt.However , the trace-makers herein are considered to be the inhabitation fauna within deep substrate that are no longer impacted by strong currents.They were deep tiering feeding burrows associated with bacteria and other organic matter on the surface of ooids which act as great source of food.The burrow filling must be their digestive products.The ecological strategy might be to adapt short productive cycle , strong fertility as well as stenotropic environmental conditions which were suitable to the extreme environment.
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