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早期的灵长类动物已经有了多样化的运动器官:来自脚骨形态的证据
Oriol Monclús-Gonzalo1, David M Alba1, Anaïs Duhamel2
1Institut Català de Paleontologia Miquel Crusafont, Universitat Autònoma de Barcelona, Edifici ICTA-ICP, c/ Columnes s/n, 08193 Cerdanyola del Vallès, Barcelona, Spain.
这项研究表明,船骨骨头的骨头.
科学领域:
- 古生物学的古生物学
- 灵长类动物的进化
- 功能性形态学 功能性形态学
背景情况:
- 类动物的起源和早期进化与树木环境有关,但它们的祖先的运动行为仍然存在争议.
- 虽然一些骨已经得到了充分的研究,但 navicular 骨在早期灵长类动物足部运动中的作用尚未得到充分研究.
- 了解早期灵长类动物的运动是重建它们的进化历史的关键.
研究的目的:
- 通过分析 navicular 骨形状来研究早期的 euprimate 运动.
- 使用基因组学知识的方法,重建早期灵长类动物谱系的运动器乐谱.
- 在古老的灵长类灵长类动物过渡期间描述船骨变化.
主要方法:
- 利用3D几何形态测量来评估现存灵长类动物的船骨形状,这些灵长类动物具有已知的运动能力.
- 应用了一种新的基因组学信息歧视分析,以推断灭绝的早期灵长类动物的运动.
- 分析了36个船形样本的样本,这些样本来自adappiforms,omomyiforms和plesiadapiforms.
主要成果:
- 骨形状与运动行为有很强的相关性,作为一种可靠的代理来推断灭绝的灵长类动物的运动.
- 早期的灵长类动物表现出各种各样的运动行为,尽管不如一些现代灵长类动物那么专业.
- 在古老的灵长类 - 灵长类过渡期间,船尾骨发生了显著的重组.
结论:
- 骨形态是灵长类动物运动行为的一个强有力的指标.
- 早期灵长类动物在进化过渡期间表现出多样化的移动,其中包括船骨在内的巨大的骨修饰,包括船骨.
- 这项研究提供了关于早期灵长类的运动多样性和灵长类进化过程中体内的显著形态变化的见解.
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