在英国上白时期的石群中,食骨虫多样性的演变
Sarah Jamison-Todd1,2, James D Witts2, Marc E H Jones2
1University College London, London, United Kingdom.
PloS one
|April 3, 2025
概括
吃骨的虫奥塞达克斯 (Osedax) 在化石骨中留下明显的痕迹 (Osspecus). 在海洋爬行动物中分析这些痕迹揭示了白纪晚期的高奥塞达克斯多样性,这表明这种独特的虫的早期起源.
科学领域:
- 古生物学的古生物学
- 海洋生物学 海洋生物学
- 这种技术是什么?
背景情况:
- 吃骨的虫奥塞达克斯 (Osedax) 居住在海洋脊椎动物的尸体中.
- 被称为痕迹化石 (Osspecus) 的奥塞达克斯钻孔,在化石鱼和海洋爬行动物中发现.
- 由Osedax物种创造的明显的无聊形态作为物种多样性的代理.
研究的目的:
- 用化石海洋爬行动物骨头研究Osedax的多样性和进化.
- 根据无聊的形态学来识别和分类新的Osedax鱼类物种.
- 为了确定化石记录中的Osedax的时间分布和生态意义.
主要方法:
- 检查了上白时期的石群的海洋爬行动物化石.
- 识别和记录新的无聊形态 (Osspecus).
- 重新检查现有的Osspecus记录,并将纳米化石生物分层法用于年龄限制.
主要成果:
- 在海洋爬行动物化石中发现了五种未经记录的无聊形态.
- 描述和命名七个新的Osspecus. ichnospecies的描述和命名.
- 在早期的白纪晚期,有高的Osedax物种多样性的证据,比以前认为的更早.
- 识别了五种白时期的鱼类物种,这些物种也存在于代纪,其中三种在现代鱼骨中发现.
结论:
- 奥斯佩克斯 (Osspecus) 的化石记录表明,在白纪时期,奥斯佩克斯 (Osedax) 的多样性和生态重要性显著.
- 这些发现表明Osedax.的快速多样化或早期进化起源.
- 奥塞达克斯在海洋生态系统中存在已久,白纪和现代物种之间存在相当大的重叠.
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