Diversität und Disparität der Anomodontia (Tetrapoda, Therapsida) über das Permisch-Triassische Aussterbeereignis

二叠纪末生物危机（~252.5 Ma）是地球历史上最严重的灭绝事件。我的研究调查了异齿动物的多样性模式，异齿动物是一种已灭绝的兽孔类（“类哺乳动物的爬行动物”），随着时间的推移，特别是在这次事件中。作为食草动物和当时占优势的陆生四足动物，异齿兽在评估二叠纪末灭绝对陆地生态系统的影响方面发挥着核心作用。提出的研究利用定量方法的组合来调查系统发育和形态多样性模式的群体。使用现代系统方法的强大的分类和系统发育框架构成了本研究的第一步，并将随后形成评估跨二叠纪末灭绝事件中异常齿动物的系统发育多样性和形态差异模式的基础。除了生物灭绝、恢复和多样化的时期外，这种方法还可以确定形态进化速度减慢或加速的时间间隔。我提出的研究旨在阐明我们对二叠纪末灭绝事件对陆地生态系统影响的理解。

The end-Permian biotic crisis (~252.5 Ma) represents the most severe extinction event in Earth's history. My research investigates diversity patterns in Anomodontia, an extinct group of therapsid synapsids ('mammal-like reptiles'), through time and in particular across this event. As herbivores and the dominant terrestrial tetrapods of their time, anomodonts play a central role in assessing the impact of the end-Permian extinction on terrestrial ecosystems. The proposed study utilizes a combination of quantitative approaches to investigate phylogenetic and morphological diversity patterns within the group. A robust taxonomic and phylogenetic framework using modern systematic approaches forms the initial step of this study and will subsequently form the basis for an assessment of phylogenetic diversity and morphological disparity patterns within Anomodontia across the end-Permian extinction event. In addition to periods of biotic extinction, recovery, and diversification, this approach allows the identification of intervals of decelerated or accelerated rates of morphological evolution through time. My proposed research aims to shed new light on our understanding of the impact of the end-Permian extinction event on terrestrial ecosystems.