Palaeobiogeograhic relationships of Early Carboniferous ammonoid assemblages in North America

北美早石炭世菊石组合的古生物地理关系

• 批准号: 15888736
• 负责人: Privatdozent Dr. Dieter Korn
• 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: 2005
• 资助国家: 德国
• 起止时间: 2004-12-31 至 2006-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/15888736?language=en
• 关键词: Palaeobiogeograhic; relationships; Early; Carboniferous; ammonoid

The Early Carboniferous (Mississippian) is a time that is characterised by significant changes in the configuration of the main tectonic plates. The Variscan Orogeny led to the separation of shelves and subsequent provincialism of ammonoid communities. Therefore, a Subvariscan Realm (Northwestern and Central Europe) of can clearly be distinguished from a Prototethian Realm (South Europe, North Africa, South Urals). Faunal provinces in North America, however, are much less well investigated. Within the proposed project, a comparison of the assemblages present in the Ouchita Foreland Basin of the American Midcontinent (Arkansas, Oklahoma, Texas) with the Antler Foreland Basin of the Western United States (California, Nevada, Utah) will be carried out. The ammonoid faunas of these two areas will be investigated in a global context. The goal of the project is the quantitative analysis of the biogeographic patterns and the timing of the mid-Carboniferous adaptive radiation of the ammonoids.

早期的石炭纪（密西西比州）是一个以主构造板的构型发生重大变化为特征的时代。 Variscan的造山基因将货架分离和随后的氨基群落群落分离。因此，可以显然可以将一个次瓦里斯坎（Subvariscan）领域（西北和中欧）与原始的境界（南欧，北非，南乌拉尔斯）区分开。然而，北美的动物群省的调查要少得多。在拟议的项目中，将进行对美国中陆盆地（德克萨斯州阿肯色州阿肯色州）与美国西部（美国西部（加利福尼亚州内华达州加利福尼亚州内华达州，犹他州）的蚂蚁陆盆地）的组合进行比较。这两个领域的氨基动物动物群将在全球背景下进行研究。该项目的目的是对生物地理模式的定量分析以及氨基菌的中石化自适应辐射的时间。