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

二叠纪-三叠纪灭绝事件中异齿动物（四足动物、兽孔动物）的多样性和差异

• 批准号: 110080703
• 负责人: Professor Dr. Jörg Fröbisch, Ph.D.
• 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 Grants
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/110080703?language=en
• 关键词: Diversit; und; Disparit; der; Anomodontia

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.

二叠纪末期(约252.5 Ma)的生物危机是地球历史上最严重的物种灭绝事件。我的研究调查了Anomodontia的多样性模式，Anomodontia是一种已灭绝的治疗性突触体(类似哺乳动物的爬行动物)，随着时间的推移，尤其是在这一事件中。作为食草动物和当时占主导地位的陆地四足动物，异形牙齿在评估二叠纪末期灭绝对陆地生态系统的影响方面发挥了核心作用。拟议的研究利用定量方法的组合来调查该种群内的系统发育和形态多样性格局。使用现代系统方法的强大的分类学和系统发育框架构成了这项研究的第一步，随后将成为评估二叠纪末期灭绝事件中无齿类内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，这种方法还允许识别随着时间的推移形态进化减速或加速的时间间隔。我提出的研究旨在为我们理解二叠纪末期物种灭绝事件对陆地生态系统的影响提供新的线索。