Environmental controls and distribution of Late Jurassic neoselachians from the Iberian Basin (NE Spain) in the European context

欧洲背景下伊比利亚盆地（西班牙东北部）晚侏罗世新鲨鱼的环境控制和分布

• 批准号: 5448423
• 负责人: Professor Dr. Jürgen Kriwet
• 金额: --
• 依托单位: Institut für Paläontologie
• 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 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5448423?language=en
• 关键词: Environmental; controls; distribution; Late; Jurassic

Fossil neoselachians... are primarily recognized by their teeth and, consequently, the evolution and ecology of neoselachians through time is still obscure. Knowledge of Late Jurassic neoselachians diversity is fundamental to our understanding of their early evolutionary history and radiation. Despite the development of diverse neoselachian faunas within the Jurassic, the palaeonvironmental specificity of the taxa has generally been ignored. The project focuses on Late Jurassic neoselachians from NE Spain. Extensive sampling from a range of facies within the platform will allow to asses the palaeoenvironmental distribution of neoselachian sharks and rays within the basin but also to reconstruct faunal exchanges between European Late Jurassic neoselachian faunas and disciminate Tethyal and boreal influences. Geochemical tracer analyses... performed on selected teeth from a range of different facies and ages will help establishing a stratigraphic and palaeoecological framework. The results will be compared to other Late Jurassic neoselachian assemblages and general diversity patterns will be reconstructed, which, in turn, can be used as proxies for modern neoselachian distribution.

新塞拉亚类化石。主要通过它们的牙齿来识别，因此，新塞拉目动物的进化和生态随着时间的推移仍然模糊不清。对晚侏罗世新陆栖动物多样性的了解是我们理解其早期进化史和辐射的基础。尽管侏罗纪发育了不同的新塞拉目动物群，但这些分类群的古环境特殊性通常被忽略了。该项目的重点是来自西班牙东北部的晚侏罗世新塞拉亚人。从地台内的一系列相中进行广泛的采样，不仅可以评估盆地内新塞拉亚鲨鱼和射线的古环境分布，还可以重建欧洲晚侏罗世新塞拉亚动物群之间的动物群交换，并确定特赛亚和北方的影响。地球化学示踪分析..。对来自一系列不同相和年龄的选定牙齿进行测试，将有助于建立地层和古生态框架。这些结果将与其他晚侏罗世新塞拉目组合进行比较，并重建一般的多样性格局，进而可以作为现代新塞拉目分布的替代。