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甲时期的兰:早期的突出地位,灭绝的多样性和缺失的环节

Else Marie Friis^1,2, Peter R Crane^3,4, Kaj Raunsgaard Pedersen¹

¹Department of Geoscience, University of Aarhus, Høegh-Guldbergs Gade 2, DK-8000 Aarhus C, Denmark.

Annals of botany

|April 10, 2024

概括

化石证据揭示了来自早期白纪早期的克洛伦塔家族的多样化的早期树苗. 这些已灭绝的物种有助于解释现代Chloranthaceae属的进化和关系.

科学领域:

古植物学是古植物学.
血管精子的原始发育过程
进化生物学进化生物学

背景情况:

克罗兰属,包括四个属,表现出简单的花朵,并在血管精子进化早期分离.
克罗兰属相对于其他主要的血管精子群体的遗传学位置仍然不确定.
化石证据,特别是早期白时期的化石证据,显著增强了我们对家族进化历史的理解.

研究的目的:

描述了早期白时期的三种新的类动物.
总结当前关于克罗兰太家族灭绝多样性的知识.
阐明现存的Chloranthaceae属之间的进化关系和形态差距.

主要方法:

对来自葡萄牙和北美的早期白纪中化石 (花朵,水果,种子,花朵,茎) 的分析.
对晚白纪化石androecia的检查.
对化石和现存的Chloranthaceae种类进行比较形态分析.

主要成果:

多种早期的类动物,与现存的Hedyosmum和Askarina,Chloranthus,Sarcandra类相关,已从白纪早期确定.
在晚白纪发现了与现存的Chloranthus相关的独特化石androecia.
描述了三种早期白时期的新类,扩大了已知的灭绝多样性.

结论:

早期白时期的Chloranthaceae记录丰富,提供了血管精子生殖结构的早期证据.
已灭绝的兰类动物弥合了现存属之间的形态差距,并阐明了它们独特特征的演变.
克罗兰类化石对于了解早期的树苗多样化,生态学和植物学至关重要.

关键词:

克罗兰属植物的植物.早期的白时期.晚期白纪晚期的白纪在SRXTM上,它是SRXTM.散落的花粉可以散落在花粉中.早期的血管精子它们的内皮质 (endothelium).化石花朵的花朵是一个化石.同步子辐射X射线断层显微镜X射线断层显微镜

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