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追踪斯蒂戈萨尔的复杂性及其群体行为
Diego Castanera1, Luis Mampel2, Alberto Cobos2
1Fundación Conjunto Paleontológico de Teruel-Dinópolis/Museo Aragonés de Paleontología, Avenida de Sagunto s/n, 44002, Teruel, Spain. castanera@fundaciondinopolis.org.
Scientific reports
|July 3, 2024
概括
在西班牙,石龙的痕迹很丰富,但很难与足动物的痕迹区分开来. 新的研究证实了D. ibericus的变异性,揭示了类动物潜在的群体行为.
科学领域:
- 古生物学的古生物学
- 鱼类学 鱼类学 鱼类学
- 恐龙类 (Dinosauria) 是一个恐龙类.
背景情况:
- 在20多年前发现Deltapodus之前,史蒂戈索尔的痕迹以前是未知的.
- 伊比利亚半岛,特别是特鲁埃尔省,是DeltaPodus发生的全球热点.
- 由于形态上的相似之处,区分石龙跟踪与足动物跟踪是很有挑战性的.
研究的目的:
- 审查和分析一个大型的DeltaPodus轨迹的全球集合,包括D. ibericus.的全型.
- 描述DeltaPodus新出现的痕迹,并解决识别问题.
- 调查轨道形态的变化及其潜在原因,如基板和运动动态.
主要方法:
- 对DeltaPodus痕迹的综合数据集进行分析.
- 形态和形态测量比较,包括3D建模.
- 与赛罗波德足迹进行比较分析,重点关注甲足动物骨差异.
主要成果:
- 在Deltapodus轨迹中观察到大量的形态变异.
- 根据手稿形态学和形态学数据,所有研究的轨迹都被确定为D. ibericus.
- 轨道变化归因于基板差异和/或移动过程中的动态脚姿势.
- 3D建模证实了类动物和类动物的足迹之间明显的差异,特别是在manus和pes的比例上.
- 两个追踪场所提供了类动物群居行为的证据,这是一个罕见的发现.
结论:
- Deltapodus ibericus表现出显著的形态变异性,受基板和运动的影响.
- 3D建模对于区分石龙跟踪与足动物跟踪至关重要.
- 在新化石证据的支持下,确定了类动物的群体行为,挑战了关于它们的社会结构的先前假设.
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