The evolution of sauropodomorph locomotion and its adaptation to giant body size: Insights from CAD and kinematical computer modeling

蜥脚类动物运动的进化及其对巨大体型的适应：CAD 和运动学计算机建模的见解

• 批准号: 37067772
• 负责人: Dr. Heinrich Mallison
• 金额: --
• 依托单位: Museum für Naturkunde - Leibniz-Institut für Evolutions- und Biodiversitätsforschung (MfN)
• 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 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/37067772?language=en
• 关键词: evolution; sauropodomorph; locomotion; its; adaptation

The development of giant body sizes requires major adaptations in the skeleton, influencing locomotion significantly. In this project, the methods developed to investigate the locomotion of Plateosaurus in the previous project will be applied to other prosauropods and to sauropods. These include detailed computer aided determination of body masses and mass distribution (position of center of gravity), kinematical computer modeling of posture and gaits as well as comparison of these through the phylogenetic tree of the Sauropodomorpha. Where necessary, detailed analyses of joint mobility will be undertaken with the aid of 3D computer models of individual bones. The evolution of sauropodomorph locomotion and its adaptation to giant size are more complex than previously expected, and a thorough analysis of cursorial and weight bearing adaptations of the main groups of sauropods and their stem line will allow new insights into the ecological roles of these important herbivores. Also, the kinematical modeling approach for locomotion will be extended to analyze sauropodomorph trackways, both by predicting track patterns from models and by 'forcing' models to 'walk' fossil tracks. This serves on one hand as a check on the accuracy and reliability of the modeling. On the other hand, new conclusions will be possible about the completeness of the ichnological record of sauropodomorphs and its interpretation.

巨大的身体尺寸的发展需要骨骼的重大适应，这对运动产生了重大影响。在本项目中，上一个项目中开发的研究平台龙运动的方法将应用于其他原蜥脚类和蜥脚类动物。其中包括详细的身体质量和质量分布(重心位置)的计算机辅助确定，姿势和步态的运动学计算机建模，以及通过蜥蜴形目的系统发育树对它们进行比较。如有需要，将会借助个别骨骼的3D电脑模型，对关节活动度进行详细分析。蜥脚类动物的运动进化及其对巨型恐龙的适应比之前预期的要复杂得多，彻底分析主要类群蜥脚类及其茎线的卷曲和承重适应将使人们对这些重要草食动物的生态角色有新的见解。此外，运动的运动学建模方法将扩展到分析蜥蜴足形态的轨道，既可以通过预测模型的轨迹模式，也可以通过‘强迫’模型‘行走’化石轨迹。这一方面是对建模的准确性和可靠性的检查。另一方面，关于蜥脚亚目的生物记录及其解释的完整性将有可能得到新的结论。