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蒙古特里亚:来自东北亚的新早期白纪三种子

Maya A Bickner¹, Fabiany Herrera², Gongle Shi³

¹Chicago Botanic Garden, Glencoe, 60022, Illinois, USA.

American journal of botany

|December 5, 2023

概括

在蒙古和中国发现了一种新的早期白纪高种子种子属Mongolitria. 这些化石种子表现出独特的特征,表明不确定的更高层次的系统性亲和关系.

科学领域:

古植物学是古植物学.
早期白时期的植物.
吉姆诺精种的进化

背景情况:

化石种子的发现为古代植物和生态系统提供了关键的见解.
早期白时期在东亚是一个重要的植物多样化的时间.

研究的目的:

描述和正式分类一种新属的化石高精子种子.
研究来自蒙古和内蒙古的早期白纪种子的形态学,解剖学和系统性亲缘关系.

主要方法:

使用扫描电子显微镜,光显微镜和同步辐射X射线微图学分析化石种子.
检查解剖部分,皮质制剂和纤维素酸皮.
与已知的化石和现存的科植物进行了比较形态分析.

主要成果:

建立了一个新属,Mongolitria,有两个新物种:Mongolitria friisae和Mongolitria exesum.
种子形态的详细描述,包括正方形卵子,尖端微型卵子,基底附着部痕,肋状整体和三部分组织.
蒙古特里亚外 (Mongolitria exesum) 以更大的尺寸,更厚的种子外和昆虫损伤的证据而闻名.

结论:

蒙古特里亚具有独特的特征组合,使其在已知的类植物中更高层次的系统放置不确定.
有证据表明,发芽过程涉及膜分裂成三个门.
在白纪早期,蒙古地是东亚泥炭沼泽植被的重要组成部分.

关键词:

骑行者 (Cycadales) 是一种骑行类动物.早期的白时期.化石种子化石种子运动精子运动精子古植物学是古植物学.化的化物.

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