两种新的像compsognathid的类动物显示了类动物恐龙中多样化的掠食策略
Rui Qiu1,2,3, Xiaolin Wang1,3, Shunxing Jiang1
1Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China.
National science review
|April 7, 2025
概括
来自中国的新恐龙物种Sinosauropteryx lingyuanensis和Huadanosaurus sinensis揭示了一个独特的热足动物群,Sinosauropterygidae. 这一发现修订了我们对早期类动物进化和多样性的理解.
科学领域:
- 古生物学的古生物学
- 脊椎动物古生物学 脊椎动物古生物学
- 恐龙类 (Dinosauria) 是一个恐龙类.
背景情况:
- 康普索纳提idae以前被认为是一个早期分离的科尔洛拉索 theropods 类.
- 最近的研究表明,Compsognathidae不是一个单一的群体.
- 了解早期的类恐龙类热足动物进化需要对现有的类重新评估.
研究的目的:
- 描述来自中国低白时代西山形成的两种新的类型.
- 为了研究这些新物种在热足恐龙中的遗传位置.
- 探索Jehol生物群中早期类动物的生态多样化.
主要方法:
- 新的化石种类的描述:西诺萨欧波特里克斯 (Sinosauropteryx lingyuanensis) sp. nov. 和Huadanosaurus sinensis gen. 和sp. 这两种类型的动物. 在新的一年里.
- 植物遗传学分析包括了相关类型的类动物的形态数据.
- 对sinosauropterygid物种进行比较形态分析,以推断生态战略.
主要成果:
- 新的物种Sinosauropteryx lingyuanensis和Huadanosaurus sinensis是从低白时期的宜形成中描述的.
- 遗传学分析表明,来自Jehol生物群的早期白时期的类型相似的类类动物组成了一个单体群,Sinosauropterygidae.
- 至少有三种不同的狩猎策略存在于同期的sinosauropterygid物种中.
结论:
- 类Sinosauropterygidae被确立为早期分离的类恐龙中的单体群.
- 早期白时期的热足动物多样化Jehol Biota受到了北中国巨破坏导致的景观变化的影响.
- 这些发现有助于对compsognathid关系和早期coelurosaurian多样性的修订理解.
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