三维沉积物探索的出现揭示了埃迪亚卡拉-坎布里亚生态系统过渡时期的变化
Zhe Chen1, Yarong Liu1,2
1State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China.
Science advances
|October 29, 2025
概括
最早的3D挖掘化石,Treptichnus,大约5亿5千万年前出现,表明了显著的行为创新. 这一发现重塑了古代海底生态系统,为坎布里亚爆炸铺平了道路.
科学领域:
- 古生物学的古生物学
- 这种技术是什么?
- 进化生物学 进化生物学
背景情况:
- 微观化石提供了关于动物进化和生态系统变化的关键数据.
- 原生态 - 泛原生态过渡期见证了显著的生态重组.
- 在埃迪亚卡拉时期,微生物地毯是主导的底层息地.
研究的目的:
- 调查已知最早的3D挖掘痕迹化石Treptichnus的生态和行为意义.
- 了解埃迪亚卡拉 - 坎布里亚过渡时期在盆地生态动力学中挖掘的作用.
- 为了将痕迹化石证据与宏观化石组合和生态系统变化相关联.
主要方法:
- 对痕迹化石的分析,包括Treptichnus,Lamonte和像的痕迹.
- 石班坦集团 (约550-543万年前) 的平流图和古环境背景.
- 整合了与埃迪亚卡兰宏观化石发生的技术数据.
主要成果:
- 特雷普蒂克纳斯 (Treptichnus) 代表了最早的复杂的3D洞穴系统,与埃迪亚卡拉生物群共同发生.
- 观察到的行为创新包括从水平运动转向复杂的沉积物透.
- 3D挖掘的出现破坏了微生物的稳定性,改变了动物息地.
结论:
- 三维挖掘从根本上改变了底层生态动力学,影响了埃迪亚卡拉的宏观生物.
- 这些技术创新先行并使坎布里亚爆炸的生态转变成为可能.
- 痕迹化石证据突出显示了埃迪亚卡拉-坎布里亚边界的关键行为和生态转变.
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