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广西恭城中奥陶世笔石地层的发现

Lan Tang,Maohong Chen,Nanren Hai

JOURNAL OF GUILIN INSTITUTE OF TECHNOLOGY（1999）

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Abstract
首次报道和讨论了桂北恭城中奥陶世笔石地层.该套地层以前划归为寒武系,笔石地层的发现证实为奥陶系,层位大致相当于桂北兴安的黄隘组和升平组.笔石动物群包括对笔石、四笔石、叶笔石、瘤笔石、围笔石等,可以划分为2个笔石带:Didymograptus abnormis 带和Amplexograptus confertus带.恭城笔石动物群的发现为华南区笔石地层的研究提供了新资料,对进一步了解该区大地构造环境、沉积环境及古地理具有重要意义.
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