The biomechanical design and morphofunctional evolution of presacral vertebrae in Sauropodomorpha deduced from shape analysis and FESS

从形状分析和 FESS 推导出蜥脚类骶前椎的生物力学设计和形态功能进化

• 批准号: 37067589
• 负责人: Professor Dr. Oliver Rauhut, Ph.D.
• 金额: --
• 依托单位: Sektion Paläontologie und Geobiologie
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/37067589?language=en
• 关键词: biomechanical; design; morphofunctional; evolution; presacral

The size of the largest sauropod dinosaurs is close to the theoretical size limit for terrestrial vertebrates. To understand body design of sauropod, a detailed knowledge of their carrying system is essential. Apart from the limbs and girdles, which were the subject of a previous study in the framework of the Research Unit, understanding of the structure and mechanics of the vertebra) column are essential. Palaeontologists have long marvelled over the complex structure of presacral vertebrae of sauropods, but no detailed biomechanical study of these structures has been carried out so far. Furthermore, the evolution of this anatomical complex can be studied in the framework of recent phylogenetic analyses of sauropodomorph dinosaurs, leading to a better understanding of the evolution of gigantism in sauropods. Thus, in the current project the structure of the presacrai vertebrae will be investigated using a combination of statistical comparative and biomechanical techniques, such as shape analysis and Finite Element Structure Synthesis. This will allow a quantification of evolutionary changes in vertebral structure in sauropods and put these changes into a functional and biomechanical context. This, in turn, will lead to a better understanding of the functional and mechanical constraints that have shaped sauropod design.

最大的蜥脚类恐龙的大小接近陆地脊椎动物的理论尺寸极限。要了解蜥脚类动物的身体设计，详细了解它们的携带系统是必不可少的。除了肢体和腰带，这是研究单位框架内先前研究的主题，了解脊椎骨的结构和力学是必不可少的。长期以来，古生物学家一直对蜥脚类动物的前椎骨的复杂结构感到惊奇，但迄今为止还没有对这些结构进行详细的生物力学研究。此外，这种解剖复合体的进化可以在最近的蜥脚类恐龙系统发育分析的框架中进行研究，从而更好地理解蜥脚类恐龙巨人症的进化。因此，在当前的项目中，将使用统计比较和生物力学技术（如形状分析和有限元结构综合）相结合的方法来研究骶前椎骨的结构。这将允许对蜥脚类动物脊椎结构的进化变化进行量化，并将这些变化置于功能和生物力学的背景下。反过来，这将使我们更好地理解影响蜥脚类动物设计的功能和机械限制。