The Triassic Transition: Analyzing niche replacement between major clades of fossil vertebrates

三叠纪转变：分析化石脊椎动物主要进化枝之间的生态位替代

• 批准号: 261812059
• 负责人: Professor Dr. Jörg Fröbisch, Ph.D., since 9/2017
• 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: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/261812059?language=en
• 关键词: Triassic; Transition; Analyzing; niche; replacement

The shift between Paleozoic and modern faunas during the Triassic Period (c. 252-200 Ma) was one of the most important biological transitions in Earth history. Taxonomic turnover during this transition is well known, but the evolutionary processes underlying it remain obscure. There are two competing hypotheses of the evolutionary dynamics of this transition in major terrestrial vertebrate groups: competition vs. ecological opportunism. I will quantitatively test these hypotheses directly for the first time, using geometric morphometric analysis of lower jaw shape (a known correlate of dietary niche) in terrestrial vertebrates from the Permian, Triassic, and Jurassic periods. The results of this research will have important implications for understanding the origins of dinosaurs and mammals. They will also more generally elucidate the dynamics of replacement following mass extinctions, vital information for modelling the long-term effects of current human-mediated vertebrate extinctions.

三叠纪（约252-200 Ma）古生代动物群与现代动物群之间的转变是地球历史上最重要的生物转变之一。在这一转变过程中的分类更替是众所周知的，但其背后的进化过程仍然不清楚。在主要陆生脊椎动物群体中，关于这种转变的进化动力学有两种相互竞争的假设：竞争与生态机会主义。我将首次直接对这些假设进行定量测试，使用对二叠纪、三叠纪和侏罗纪陆生脊椎动物下颌形状（已知与饮食生态位相关）的几何形态计量学分析。这项研究的结果将对了解恐龙和哺乳动物的起源具有重要意义。它们还将更广泛地阐明大规模灭绝后的替代动力学，这是模拟当前人类介导的脊椎动物灭绝的长期影响的重要信息。

项目成果

Evolutionary rates of mid-Permian tetrapods from South Africa and the role of temporal resolution in turnover reconstruction

• DOI: 10.1017/pab.2018.17
• 发表时间: 2018-08
• 期刊: Paleobiology
• 影响因子: 2.7
• 作者: M. Day;R. Benson;C. Kammerer;B. Rubidge

Novel Endocranial Data on the Early Therocephalian Lycosuchus vanderrieti Underpin High Character Variability in Early Theriodont Evolution

• DOI: 10.3389/fevo.2019.00464
• 发表时间: 2020-01-23
• 期刊: FRONTIERS IN ECOLOGY AND EVOLUTION
• 影响因子: 3
• 作者: Pusch, Luisa C.;Ponstein, Jasper;Froebisch, Joerg
• 通讯作者: Froebisch, Joerg

Diversity Patterns of nonmammalian cynodonts (Synapsida, Therapsida) and the impact of taxonomic practice and research history on diversity estimates

• DOI: 10.1017/pab.2018.38
• 发表时间: 2018-12
• 期刊: Paleobiology
• 影响因子: 2.7
• 作者: Marcus Lukic-Walther;N. Brocklehurst;C. Kammerer;J. Fröbisch

Revision of the Tanzanian dicynodont Dicynodon huenei (Therapsida: Anomodontia) from the Permian Usili Formation

• DOI: 10.7717/peerj.7420
• 发表时间: 2019-08-22
• 期刊: PEERJ
• 影响因子: 2.7
• 作者: Kammerer, Christian F.

The many faces of synapsid cranial allometry

合弓动物颅骨异速生长的多面性

• DOI: 10.1017/pab.2019.26
• 发表时间: 2019
• 期刊: Paleobiology
• 影响因子: 2.7
• 作者: Kammerer;Angielczyk
• 通讯作者: Angielczyk