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辽西上三叠统大型完整苏铁类化石的发现及意义
  • ISSN号：0023-074X
  • 期刊名称：《科学通报》
  • 时间：0
  • 分类：Q949.62[生物学—植物学] Q911.24[天文地球—古生物学与地层学;生物学—古生物学]
  • 作者机构：[1]中国科学院南京地质古生物研究所,南京210008, [2]深圳市中国科学院仙湖植物园,深圳518004, [3]中国地质调查局沈阳地质调查中心,沈阳110034
  • 相关基金：国家自然科学基金（批准号：40772006,40372008,40632010,J0630967）、中国科学院知识创新工程重要方向性项目（编号：KZCX2-YW-154）和国家重点基础研究发展计划（编号：2006CB701401）资助 本文是IGCP506项目成果的一部分.感谢化石收藏家蔡洪涛先生和辽宁省凌源洪涛古化石博物馆提供珍贵的研究标本,感谢何翠玲女士在本次研究中提供的宝贵支持.
作者： 王鑫[1], 李楠[2], 王永栋[1], 郑少林[3]
关键词： 苏铁化石, 泽米科, 整体植物, 晚三叠世, 辽西
中文摘要：

简要报道辽西地区新近发现的保存完整的大型苏铁类植物化石标本.化石采自北票地区常河营晚三叠世的羊草沟组,且完整保存在一整块砂岩上,高89cm,宽130cm,包括有长达82cm的羽状叶、茎顶及着生其上的雄性球果.通过对羽叶和小羽片的形态及其着生方式、叶脉、球果及其着生状态等与现生苏铁类植物的对比,表明当前化石材料与现存苏铁目的泽米科有着密切的系统学关系.这是目前化石记录中保存最完整且同时具有营养和生殖器官的大型苏铁类化石,对于研究化石苏铁类的总体形貌、形态演化以及古气候环境变迁等具有重要的科学意义.

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期刊信息
  • 《科学通报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国科学院
  • 主编：周光召
  • 地址：北京东黄城根北街16号
  • 邮编：100717
  • 邮箱：csb@scichina.org
  • 电话：010-64036120 64012686
  • 国际标准刊号：ISSN：0023-074X
  • 国内统一刊号：ISSN：11-1784/N
  • 邮发代号:80-213
  • 获奖情况:
  • 首届国家期刊奖,中国期刊方阵“双高”期刊,第三届中国出版政府奖
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  • 被引量:81792