来自gotland的Silurian trilete子和子四:它们对陆地植物进化的含义
Science (New York, N.Y.)
|July 19, 1974
概括
在古代瑞典岩石中发现的丰富的陆地植物子表明了陆地植物的早期进化. 它们的存在与沉积环境有关,可能早于目前的化石证据.
科学领域:
- 古植物学是古植物学.
- 在平流图学上,平流图学是平流图学.
- 沉积物学的沉积物学
背景情况:
- 在瑞典的温洛克-拉德洛岩石中发现了陆地植物子.
- 这些岩石包括质石灰岩和平台石灰岩泥石.
- 这些子的发生是本研究的重点.
研究的目的:
- 分析影响子丰富性的层次序列和生态因素.
- 调查陆地植物进化的可能性比目前的大化石证据更早.
主要方法:
- 在瑞典温洛克-拉德洛矿床中分析层次序列.
- 生态分析侧重于水深和海岸线的距离.
- 子丰富度和陆地植物巨化石之间的相关性分析.
主要成果:
- 在研究的岩石类型中发现了大量的陆地植物子.
- 子的发生与沉积生态,特别是水深和靠近海岸的密切相关.
- 丰富的子和陆地植物巨化石的第一次出现之间没有发现任何相关性.
结论:
- 对子分布的生态控制表明,它们是陆地影响的可靠指标.
- 这些发现提升了陆地植物比目前的大化石记录表明的更早发展的可能性.
- 进一步研究基于子的生物分层学可能会改进我们对早期陆地植物进化的理解.
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