缅甸古龙树林在古世时期的存在
Nicolas Gentis1, Alexis Licht2, Dario De Franceschi1
1CR2P, UMR7207, MNHN, Sorbonne Université, CNRS, 57 rue Cuvier, CP 48, 75005 Paris, France.
Annals of botany
|August 25, 2025
概括
缅甸的化石树木揭示了从非洲到印度-缅甸地区的早期植物分散,形成了一个独特的植物学省. 这一受冈多瓦人影响的省份持续到早期的奥利古纪,影响了东南亚的植物群.
科学领域:
- 古植物学
- 生物地理
- 地质学
背景情况:
- 南亚和东南亚的植物被认为是冈多瓦人的祖先.
- 非洲 - 印度 - 东南亚植物交流是印度 - 亚洲陆地连接之前发生的关键事件.
- 缅甸地带与印度的结合为植物交换提供了一个独特的研究场所.
研究的目的:
- 记录非洲 - 印度 - 东南亚植物交流的动态.
- 研究古热带血统分散的时间和机制.
- 分析缅甸的化石森林,
主要方法:
- 十个化石木头标本的剖析和解剖描述.
- 确定与现存种类的亲属关系.
- 基于化石证据的生物地理历史分析.
主要成果:
- 六种类型,包括新物种和一个属,从中世纪晚期到缅甸的低奥利古纪.
- 鉴定出来自 Fabaceae,Moraceae,Myrtaceae,Meliaceae 和 Malvaceae 家庭的化石树木.
- 有证据表明冈多瓦的分布和古热带血统生物地理.
结论:
- 从非洲到印度和缅甸的早期古世分散,建立了印度-缅甸古世植物学省.
- 这一邦德瓦纳附属的省份作为一个分散的"持有"直到早期的奥利古纪.
- 一些类型进一步扩散到东南亚,而其他类型则在新生代消失,可能是由于气候变化.
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