Triassic and Early Jurassic fossil floras from North Victoria Land, Antarctica: palaeobiology, paleoecology and stratigraphy

南极洲北维多利亚地的三叠纪和早侏罗世化石植物群：古生物学、古生态学和地层学

• 批准号: 44458976
• 负责人: Professor Dr. Hans Kerp
• 金额: --
• 依托单位: Forschungsstelle für Paläobotanik
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/44458976?language=en
• 关键词: Triassic; Early; Jurassic; fossil; floras

While other regions of the Antarctic have yielded reasonably well-preserved Mesozoic plant fossil deposits, hardly any fossil floras were known from coeval strata of North Victoria Land. During the IXth German Antarctic North Victoria Land Expedition plant material from a dozen newly discovered Triassic and Jurassic fossil localities has been collected and is currently studied. These floras are of special interest, because compressions yield excellently preserved cuticles and also anatomically preserved material has been found. Particularly cuticle-bearing compression floras are extremely rare in the Antarctic. The aims of this project are: (1) a systematic study of the newly discovered floras, based on cuticles and anatomically preserved material, (2) palaeoecological and -climatological interpretations of these floras, and (3) the establishment of a more detailed biostratigraphic framework for the Mesozoic sedimentary sequence in the Transantarctic Mountains. This study will thus contribute to a better understanding of the palaeoenvironmental changes in East Antarctica during the earliest phase of the break-up of Pangea.

虽然南极洲的其他地区出产了保存相当完好的中生代植物化石沉积物，但在北维多利亚地的同时代地层中却几乎没有发现任何化石植物群。在第九次德国南极北维多利亚陆地探险期间，来自十几个新发现的三叠纪和侏罗纪化石地点的植物材料已被收集并目前正在研究。这些植物区系特别令人感兴趣，因为压缩产生保存完好的角质层，并且还发现了解剖学保存的材料。特别是带有角质层的压缩植物群在南极地区极为罕见。该项目的目标是：（1）基于角质层和解剖学保存的材料对新发现的植物群进行系统研究，（2）对这些植物群的古生态学和气候学解释，以及（3）建立更详细的生物地层学横贯南极山脉中生代沉积序列的框架。因此，这项研究将有助于更好地了解盘古大陆分裂最早阶段东南极洲的古环境变化。