刘海,漆双林,范玖琳,郭威,裴明松,黄德将,程林,边敏,刘林,赵勇兴,张吉

• 1:湖北冶金地质研究所(中南冶金地质研究所)

摘要(Abstract)：

本文系统报道长阳地区陡山沱组底部硅质结核中发现的疑源类微体化石,并在陡山沱组二段中首次发现Hocosphaeridium scaberfacium。研究发现,长阳古城剖面埃迪卡拉系陡山沱组底界之上13.9—22.6 m处产丰富的疑源类化石,目前已发现大型具刺疑源类化石9属11种(含1个未定种),包括:Distosphaera speciosa、Eotylotopalla dactylos、Ericiasphaera magna、Hocosphaeridium scaberfacium、Hocosphaeridium sp.、Mengeosphaera lunula、Appendisphaera grandis、Tanarium paucispinosum、Tianzhushania spinosa、Weissiella grandistella、Yinitianzhushania tuberifera。这一疑源类化石组合可与三峡地区建立的Appendisphaera grandis-Weissiella grandistella-Tianzhushania spinosa组合带进行对比。此外,在陡山沱组底部发现此前原认为属于陡山沱组上部的Hocosphaeridium scaberfacium,暗示陡山沱组大型具刺疑源类一些属种具有较长的地质延限。

关键词(KeyWords)： 疑源类;陡山沱组;埃迪卡拉纪;湖北长阳

Abstract:

Keywords:

基金项目(Foundation): 湖北省自然科学基金(2015CFA143、ZRMS2019001121)资助

作者(Author): 刘海,漆双林,范玖琳,郭威,裴明松,黄德将,程林,边敏,刘林,赵勇兴,张吉

DOI: 10.19839/j.cnki.dcxzz.2021.0003

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