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已经产生了相当保存完好的中生代植物化石矿床，但在北维多利亚地的同时代地层中几乎没有任何已知的化石植物群。在第九次德国南极北维多利亚陆地考察期间，从十几个新发现的三叠纪和侏罗纪化石地点收集了植物材料，目前正在进行研究。这些植物群具有特殊的意义，因为挤压产生了保存良好的角质层，并且还发现了解剖学上保存完好的材料。特别是具有角质层的挤压植物群在南极极为罕见。该项目的目的是：（1）根据化石和解剖学保存的材料，对新发现的植物群进行系统研究;（2）对这些植物群进行古生态和气候解释;（3）建立更详细的横贯南极山脉中生代沉积序列生物地层格架。因此，这项研究将有助于更好地了解东南极洲的古环境变化，在最早的阶段，泛大陆的分裂。