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Phylogeny, palaeobiology, diversity, and evolutionary significance of Euarthropoda (excluding Trilobita) from the Lower Devonian Hunsrück Slate (Germany)

下泥盆统洪斯鲁克板岩（德国）真节肢动物（不包括三叶虫）的系统发育、古生物学、多样性和进化意义

基本信息

批准号：
55600324
负责人：
Professor Dr. Jes Rust
金额：
--
依托单位：
Abteilung Paläontologie
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2008
资助国家：
德国
起止时间：
2007-12-31 至 2011-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/55600324?language=en
关键词：
Phylogeny palaeobiology diversity evolutionary significance

项目摘要

The Lower Devonian Hunsrück Slate (Germany) is known for its unique fauna and flora and the high quality of the preservation of pyritiesed fossils. Especially the arthropods are highly diverse and remarkable for their preservation. Some of them are of unknown systematic affinity and ambiguous phylogenetic relationship. These morphologically very archaic taxa, like Vachonisia rogeri, Mimetaster hexagonalis, and Devonohexapodus bocksbergensis, are poorly studied with respect to much newly available material, the new theories of arthropod phylogeny and evolution, the interpretation of their taphonomy and palaeobioloy, and the reconstruction of the palaeoenvironment. The same applies to new material of the taxon Pygnogonida and other chelicerates as well as for remarkable new material of crustaceans of the taxon Phyllocarida. These outstanding new material linked with the aspects mentioned before take centre stage in the project proposed here. Additionally, the arthropods of the Hunsrück Slate show that stem group arthropods are not always “primitive” in a common sense. On the contrary, they indicate early and presumably multiple radiations, a high diversity, and a high degree of specialization of arthropods in the Palaeozoic. To illustrate these aspects and to compare the diversity and disparity of the Hunsrück arthropods with communities from the Cambrian as well as other time horizons is an important goal of the project proposed here.

下泥盆世hunsr<s:1> ck板岩（德国）以其独特的动植物群和高质量的硫铁矿化石保存而闻名。特别是节肢动物种类繁多，保存完好。其中一些系统亲缘性未知，系统发育关系不明确。这些形态上非常古老的分类群，如Vachonisia rogeri、Mimetaster hexonalis和Devonohexapodus bocksbergensis，在许多新的材料、节肢动物系统发育和进化的新理论、它们的地学和古生物学解释以及古环境的重建方面研究得很少。同样的情况也适用于Pygnogonida分类群和其他螯合类动物的新材料，以及Phyllocarida分类群甲壳类动物的显著新材料。这些杰出的新材料与前面提到的方面联系在一起，在这里提出的项目中占据中心位置。此外，hunsr<s:1> ck岩的节肢动物表明，茎类节肢动物并不总是“原始”的。相反，它们表明古生代节肢动物的早期和可能的多重辐射，高度多样性和高度专门化。阐明这些方面，并将hunsr<s:1> ck节肢动物群落的多样性和差异与寒武纪和其他时间范围的群落进行比较，是本研究的一个重要目标。