来自西班牙高度的坎布里亚 (德鲁米亚) 时代沉积物的大型欧类甲
Stephen Pates1, Samuel Zamora2,3
1Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK.
Royal Society open science
|October 27, 2023
概括
西班牙的一个新坎布里亚化石遗址揭示了来自高度的多样化的海洋生物. 这一发现增强了我们对早期动物进化和在这个关键时期的地理分布的理解.
科学领域:
- 古生物学的古生物学
- 进化生物学 进化生物学
- 地质地质地质地质地质地
背景情况:
- 非生物矿物化化石遗址为早期动物进化提供了关键的见解.
- 现有的坎布里亚化石记录在很大程度上偏向于低度地区,如劳伦西亚和中国南部.
- 高度的坎布里亚动物群仍然不太了解,这限制了人们对古地理趋势和生物多样性的了解.
研究的目的:
- 报告一个新的中坎布里亚 (德鲁米亚) 化石 Lagerstätte 从高度冈德瓦纳位置.
- 描述新发现的欧类甲和其他化石从这个网站.
- 研究早期动物的古地理分布和多样性.
主要方法:
- 发现化石遗址的地质实地研究.
- 化石标本的古生物学分析和描述,重点是欧类.
- 与不同度的现有坎布里亚化石集合进行比较分析.
主要成果:
- 在西班牙Mesones de Isuela附近发现了一个新的中坎布里亚 (德鲁米亚) 化石 Lagerstätte.
- 识别轻度硬化的人类甲甲,海绵和古老骨科动物.
- 描述了三种双欧类甲形态的描述,其中两种形态类似于Jince形成 (捷克) 和一种新型形态.
结论:
- 高度的贡德瓦纳仓库对于理解坎布里亚动物辐射的古地理学至关重要.
- 来自高坎布里亚度的双类欧类动物可能比它们的低度对应物更大.
- 这一发现有助于更全面地了解早期动物的多样性和分布.
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