Biostratigraphic and macroevolutionary study of Antartic Neogene rediolarian faunas

南极新第三纪放射虫是测定南大洋深海沉积物年代的两个主要微体化石群之一，也是反映大洋环境变化引起的物种水平进化变化的非常完整和丰富的化石记录。尽管在过去的几十年里，物种分类学和许多放射虫丰富的部分恢复重大改进，这些化石的生物地层学和进化研究的潜力是欠发达的，主要是由于不完整的分类知识的使用和不完整的记录分类发生。我建议完成一项新的研究，根据现已完成的分类概念的审查和标准化，目前正在收集新的，详细的，（几乎）完整的动物区系数据从几个南极部分，（在这个拟议的第3年的项目）分析这些数据使用现代生物地层学和宏观进化工具（如CONOP和PBDB工具包）。这项研究将产生一种新的、分辨率高得多的放射虫地层学，用于测定南极深海剖面的年代，并详细记录这一动物群的演变和对新近纪气候变化的反应。在项目结束时，将向社区研究公开提供完整的出现数据集，而修订后的分类学，包括新的分类学出版物，正在纳入公共网站，并支持为IODP开发微体化石数字分类目录（STP建议0601-09和共识0603-10; 2008-2010年IODP TNL开发项目合同和通过IODP古协调组的其他工作）。

Antarctic Neogene radiolarians are one of the two main microfossil groups used to date Southern Ocean deep sea sediments and are also an extraordinarily complete and rich fossil record of species level evolutionary change in response to dramatically changing pelagic environments. Despite major improvements in species taxonomy and the recovery of numerous radiolarian rich sections in the last decades, the potential of these fossils for biostratigraphy and evolution research is underdeveloped, primarily due to incomplete use of taxonomic knowledge and incomplete recording of taxa occurrences. I propose to finish a new study, based on a now completed review and standardization of taxonomic concepts, currently being collected new, detailed, (nearly) full fauna data from several Antarctic sections, and (in this proposed year 3 of the project) analysis of this data using modern biostratigraphic and macroevolutionary tools (e.g. CONOP and the PBDB toolkit). The study will yield a new, much higher resolution radiolarian stratigraphy for dating Antarctic deep-sea sections, and a detailed documentation of this fauna’s evolution and response to climate change over the Neogene. The full occurrences data set will be made openly available for community study at the end of the project, while the revised taxonomy, including new taxonomic publications, is being incorporated into public websites and is supporting the development of digital taxonomic catalogs of microfossils for IODP (STP Recommendation 0601-09 and Consensus 0603-10; IODP project contracts for TNL development, 2008-2010 and other efforts via IODP's Paleo Coordination Group).