运动和早期中生时期的成功的Archosauromorpha
Amy E Shipley1,2, Armin Elsler1, Suresh A Singh1
1School of Earth Sciences, University of Bristol, Wills Memorial Building, Queen's Road, Bristol BS8 1RJ, UK.
Royal Society open science
|February 8, 2024
概括
恐龙及其亲属 (Avemetatarsalia) 在三叠纪从灭绝中恢复时表现出不同的四肢进化和运动. 这种运动运动的可塑性可能解释了恐龙的成功,而不是伪.
科学领域:
- 古生物学的古生物学
- 进化生物学 进化生物学
- 生物力学 生物力学
背景情况:
- 特里亚斯纪时期是在米-特里亚斯纪大灭绝之后出现的,这是生命恢复的关键时期.
- 类动物,包括早期的恐龙,类动物和鱼类动物,是这种生态复兴的核心.
研究的目的:
- 为了研究阿尔科索罗形动物运动进化的进化.
- 为了确定恐龙是否具有独特的运动特征,有助于它们的进化成功.
主要方法:
- 在四肢骨形状上应用的几何形态学.
- 使用四肢比率计算双脚和曲率指标的计算.
主要成果:
- 与其他群体相比,Avemetatarsalia表现出明显更可变的四肢形状和比例,表明运动方式多样化.
- 早期的阿维梅塔塔萨利人是双脚的和的;他们的运动范围在整个特里亚斯纪扩大.
- 伪苏希亚的肢体形式受到限制,随着时间的推移,运动力差异减少,这表明适应能力有限.
结论:
- 恐龙更强的运动可塑性可能在动态的三纪后期环境中提供了竞争优势.
- 这项研究强调了运动中的进化创新与生态主导之间的联系.
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