来自早期坎布里亚古安山生物群的Corynetis的新观察反映了挖掘生命的现象
Chunxiao Liu1, Jianni Liu1,2
1State Laboratory of Continental Evolution and Early Life, Shaanxi Key Laboratory of Early Life and Environments, Xi'an Key Laboratory of Paleo-bioinformatics, Department of Geology, Northwest University, Xi'an 710069, People's Republic of China.
Royal Society open science
|October 9, 2025
概括
这项研究揭示了对坎布里亚时期的 priapulids, Corynetis brevis 和 Corynetis fortis 的新见解,详细介绍了它们独特的棘状形态和生态作用. 发现包括一种新的感官环口冠,有助于这些古代海洋虫的捕食.
科学领域:
- 古生物学的古生物学
- 进化生物学 进化生物学
- 海洋生态海洋生态学
背景情况:
- 普里亚普利德体表现出显著的解剖学差异,是早期坎布里亚海洋生态系统的关键.
- 科林尼蒂斯属的刺装饰,尽管具有生态意义,但对它的了解仍然很少.
- 对Corynetis的形态学和古生态学的详细调查缺乏.
研究的目的:
- 研究来自广山生物群的 priapulid 科林尼斯属的形态学和古生态学.
- 描述两种物种,Corynetis brevis和Corynetis fortis,包括C. brevis在这个生物群中的第一个记录.
- 识别新型结构并分析形态差异以获得生态洞察力.
主要方法:
- 来自广山生物群的标本的化石分析.
- 对Corynetis brevis和Corynetis fortis进行了比较形态分析.
- 基于形态和沉积物学数据的古生态重建.
主要成果:
- 在关山生物群中首次记录Corynetis brevis.
- 在Corynetis中发现了一种具有潜在感官功能的新型环口冠状.
- 干脊的形态差异表明C. brevis和C. fortis之间存在不同的定和挖掘策略.
- 专门的冠状脊柱表现出更快的生长和增强的感官能力,可能有助于捕食.
结论:
- 科里尼蒂斯拥有独特的适应性,包括感官环口冠和专门的棘,增强掠食和挖掘.
- 截然不同的树干脊柱形态表明特定物种的定和快速撤退行为用于挖掘.
- 古生态重建表明,科里尼蒂斯是在坎布里亚早期的海洋中,是一个孤独的,食肉的洞穴居民.
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