权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Saurischian dinosaurs from the Elliot Formation of South Africa: Anatomy, ecology, and evolution

南非埃利奥特组的蜥臀目恐龙：解剖学、生态学和进化

基本信息

批准号：
45564068
负责人：
Professor Dr. Oliver Rauhut, Ph.D.
金额：
--
依托单位：
Sektion Paläontologie und Geobiologie
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2007
资助国家：
德国
起止时间：
2006-12-31 至 2013-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/45564068?language=en
关键词：
Saurischian dinosaurs Elliot Formation South

项目摘要

Saurischian dinosaurs originated in the Triassic and experienced their initial radiation in the Upper Triassic / Lower Jurassic. However, although the appearance of coelophysoids in the Upper Triassic indicates that their sister group, which includes all later theropods, must have been around since then as well, they are virtually absent from the fossil record until the Middle Jurassic. Sauropodomorphs are common representatives of many vertebrate faunas of the Upper Triassic / Lower Jurassic, but, due to often incomplete preservation, neither their alpha taxonomy, nor their phylogenetic relationships are resolved, including the question of the origin and early evolution of sauropods. New material of early saurischians is therefore essential for a better understanding of the initial radiation of saurischians and the origin of major groups. The Upper Triassic Lower Elliot and Lower Jurassic Upper Elliot Formation of South Africa and Lesotho offer a unique opportunity to study saurischian faunas and their environmental context of that time. The Elliot Formation is renowned for its saurischian record, which, among others, includes the oldest known sauropods Antetonitrus and Blikanasaurus, but most taxa known are based on fragmentary material, making an evaluation of their taxonomic diversity and phylogenetic importance difficult. Thus, in the current project, intensive fieldwork in both parts of the Elliot Formation is planned in order to improve our knowledge of Late Triassic / Lower Jurassic saurischians.

蜥臀目恐龙起源于三叠纪，并在上三叠世/下侏罗世经历了最初的辐射。然而，尽管腔体类动物在上三叠世的出现表明它们的姐妹群（包括所有后来的兽脚亚目动物）从那时起也一定已经存在，但直到中侏罗世，它们实际上才出现在化石记录中。蜥脚类动物是上三叠统/下侏罗统许多脊椎动物群的常见代表，但是，由于保存往往不完整，它们的阿尔法分类学和系统发育关系都没有得到解决，包括蜥脚类动物的起源和早期进化问题。因此，早期蜥臀目的新材料对于更好地了解蜥臀目的最初辐射和主要群体的起源至关重要。南非和莱索托的上三叠统下埃利奥特地层和下侏罗统上埃利奥特地层为研究蜥蜴动物群及其当时的环境背景提供了独特的机会。艾略特组以其蜥臀目记录而闻名，其中包括已知最古老的蜥脚类恐龙 Antetonitrus 和 Blikanasaurus，但大多数已知的分类单元都是基于零碎的材料，这使得评估其分类多样性和系统发育重要性变得困难。因此，在当前的项目中，计划在埃利奥特组的两个部分进行密集的实地考察，以提高我们对晚三叠世/下侏罗世蜥蜴类的了解。