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Macroevolutionary patterns in the evolution of the skull in theropod dinosaurs: a morphogenetic approach

兽脚类恐龙头骨进化的宏观进化模式：形态发生方法

基本信息

批准号：
192208012
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 Grants
财政年份：
2011
资助国家：
德国
起止时间：
2010-12-31 至 2016-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/192208012?language=en
关键词：
Macroevolutionary patterns evolution skull theropod

项目摘要

Theropod dinosaurs were one of the most conspicuous groups of terrestrial vertebrates during the Mesozoic, and, in the form of birds, this is true even today. Although their evolutionary history is thus of greatest importance for understanding the origin and evolution of one of the most diverse vertebrate groups today, studies of macroevolutionary patterns in theropods are still rare, especially for the evolution of the skull in this group. However, recent works on theropod skull ontogeny and biomechanics provide a good base for such studies. In the current project, we will investigate the evolution of the skull in non-avian theropods and basal birds, using a geometric morphometric approach. We will thus establish the morphospace occupied by theropod skulls and analyse shifts in morphospace during theropod evolution. By integrating these morphometric studies with results from analyses of theropod skull ontogeny and biomechanics, we will further investigate the influence of heterochrony and functional aspects on the evolution of the theropod skull. The project will thus lead to a much better understanding of macroevolutionary patterns in the evolution of theropod skulls on the lineage towards birds.

兽脚类恐龙是中生代最引人注目的陆生脊椎动物之一，即使在今天，以鸟类的形式也是如此。虽然它们的进化历史对于理解当今最多样化的脊椎动物群体之一的起源和进化至关重要，但对兽脚亚目动物宏观进化模式的研究仍然很少，特别是对这一群体头骨的进化。然而，最近的工作，兽脚类头骨个体发育和生物力学提供了一个很好的基础，这样的研究。在目前的项目中，我们将调查的头骨在非鸟类兽脚亚目和基础鸟类的进化，使用几何形态测量的方法。因此，我们将建立兽脚亚目恐龙头骨所占据的形态空间，并分析兽脚亚目恐龙进化过程中形态空间的变化。通过整合这些形态测量学的研究与结果分析的兽脚亚目恐龙头骨个体发育和生物力学，我们将进一步研究的影响，异时性和功能方面的兽脚亚目恐龙头骨的演变。因此，该项目将导致更好地了解兽脚亚目恐龙头骨向鸟类进化的宏观进化模式。