• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of plant sciences >MESOZOIC DIVERSITY OF OSMUNDACEAE: OSMUNDACAULIS WHITTLESII SP. NOV. IN THE EARLY CRETACEOUS OF WESTERN CANADA
【24h】

MESOZOIC DIVERSITY OF OSMUNDACEAE: OSMUNDACAULIS WHITTLESII SP. NOV. IN THE EARLY CRETACEOUS OF WESTERN CANADA

机译：OSMUNDACEAE的中生代多样性：OSMUNDACAULIS WHITTLESII SP。十一月在加拿大西部的早白垩世

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Premise of research. A distinctive new species of osmundaceous fern, based on a permineralized trunk from Lower Cretaceous deposits of Haida Gwaii (formerly the Queen Charlotte Islands) off the west coast of mainland Canada, provides additional data for addressing the Mesozoic diversity and the overall pattern of phylogeny for osmundaceous filicalean ferns. Methodology. The specimen was cut into segments and studied from both external morphology and anatomical sections prepared by the cellulose acetate peel technique. Microscope slides of sections were examined, and images were captured under transmitted light. Pivotal results. The fossil represents a new species of Osmundacaulis, which is only the third Northern Hemisphere representative of this predominantly Southern Hemisphere genus. Conclusions. Osntundacaulis whittlesii sp. nov. increases the Northern Hemisphere diversity of Cretaceous Osmundaceae, thus providing new data about Mesozoic diversity of the clade, potential sister-group relationships of crown-group Osmundaceae, and the overall pattern of phylogeny for Osmundaceae.
机译：研究前提。一种独特的新的含渗透性蕨类植物，以加拿大大陆西海岸海达瓜（下称夏洛特皇后群岛）下白垩统沉积物的矿化树干为基础，提供了解决中生代多样性和系统发育总体格局的其他数据。渗透性的丝状蕨类植物。方法。将样品切成段，并从外部形态和通过醋酸纤维素剥离技术制备的解剖学切片进行研究。检查切片的显微镜载玻片，并在透射光下捕获图像。关键的结果。化石代表了新的Osmundacaulis物种，它只是北半球这一主要为南半球属的第三个代表。结论。骨骨菜whittlesii sp。十一月增加了北半球白垩纪夹竹桃科的多样性，从而提供了有关进化枝的中生代多样性，冠状夹竹桃科的潜在姐妹群关系以及夹竹桃科系统发育的整体模式的新数据。

著录项

  • 来源
    《International journal of plant sciences》 |2015年第3期|245-258|共14页
  • 作者

    MacKenzie A. Smith; Gar W. Rothwell; Ruth A. Stockey;

  • 作者单位

    Department of Integrative Biology, 3029 Cordley Hall, Oregon State University, Corvallis, Oregon 97331, USA;

    Department of Botany and Plant Pathology, 2082 Cordley Hall, Oregon State University, Corvallis, Oregon 97331, USA,Department of Environmental and Plant Biology, Ohio University, Athens, Ohio 45701, USA;

    Department of Botany and Plant Pathology, 2082 Cordley Hall, Oregon State University, Corvallis, Oregon 97331, USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Albian; Early Cretaceous; Haida Gwaii; Mesozoic; Osmundacaulis; Osmundaceae;

    机译：阿尔比恩白垩纪早期;海达瓜（Haida Gwaii）;中生代Osmundacaulis;科;

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号