热足动物的轨迹作为飞行前空中行为间接证据
T Alexander Dececchi1, Kyung Soo Kim2, Martin G Lockley3
1Division of Natural Sciences, Dakota State University, Madison, SD 57042.
概括
热足恐龙的轨迹提供了飞行前空中行为的间接证据. 对白纪轨迹的分析表明,翅膀辅助的机动,增强我们对早期热足动物飞行起源的理解.
科学领域:
- 古生物学的古生物学
- 生物力学 生物力学
- 脊椎动物的进化 脊椎动物的进化
背景情况:
- 尸体化石对恐龙的行为提供了有限的洞察力,缺乏关于生命中的行为记录.
- 痕迹化石,就像脚印一样,保存行为,使功能重建的测试和改进成为可能.
研究的目的:
- 为了证明热足动物轨迹的实用性,作为飞行前空中行为的间接证据.
- 扩大研究脊椎动物飞行起源的方法.
主要方法:
- 从一个小的鸟类类微型猛龙身上,分析了一条两的白时期的热足足道.
- 运行生物力学第一原则的应用,以解释轨道的行为影响.
主要成果:
- 轨道被确定为非典型的,表明行为超出了典型的陆地运动.
- 从轨道上推断出机车运动期间机翼辅助的空气动力学力产生的证据.
结论:
- 热足动物的轨迹可以揭示空前飞行行为间接证据.
- 这些发现支持先前关于早期鸟类类热足动物的空中能力的假设.
- 轨道分析提供了一种有价值的方法来了解足动物的飞行起源.
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