Studies on floristic changes in southern South America since the Cretaceous

选取晚白垩世至渐新世的地区进行化石取样，为项目提供信息材料。抽样是根据智利国家古迹委员会发布的#4062和#3708号文件授权进行的。除了之前的目标化石遗址，我们还发现了几个新的遗址。样品和微制剂将保存在智利圣地亚哥的国家自然历史博物馆。补充副本也存放在东京国立科学博物馆。调查成员继续研究2002-2004三个财政年度在智利进行的三次实地调查所收集的材料。除了普通调查人员外，福井县恐龙博物馆的两名科学家Terada和Atsushi Yabe作为副研究成员加入了调查。2005年6月，智利同行路易斯·费利佩·伊诺霍萨也被邀请到日本进行调查和讨论。到2005年12月为止的研究结果在2005财政年度结束时以《智利南部巴塔哥尼亚的白垩纪后植物区系变化》为题（西田H.编，东京中央大学，107页）联合出版了9篇论文。在Okuda的管理下，在智利和阿根廷收集的沼泽钻孔岩心的花粉分析仍在进行中。以乌斯怀亚CADIF-CONICET的Jorge Rabassa为代表的阿根廷同行科学家正在对在阿根廷收集的岩心样本进行调查。调查结果将在其他地方另行公布。这项研究在了解巴塔哥尼亚的植物区系和气候变化方面取得了进展，并促进了与巴塔哥尼亚和南极地区其他已知化石组合研究的详细比较。新的化石位置，如多罗泰亚和圣塞巴斯蒂安部分，以及非凡的保存，如来自里斯科岛的过矿化植物碎片，将在未来广泛研究时提供进一步有用的数据。少

Localities extending chronologically from the Late Cretaceous to the Oligocene were selected for fossil sampling to obtain informative materials for the project. Sampling was authorized by documents #4062, and #3708 issued by the Concejo de Monumentos Nacionales de Chile. In addition to previously targeted fossil-bearing sites, we found several new sites. Samples and micropreparations will be archived at the Museo Nacional de Historia Natural in Santiago, Chile. Supplementary duplicates are also deposited in the National Science Museum, Tokyo. The investigation members have continued to study materials collected in the three field researches that had been carried out in Chile during three fiscal years 2002-2004. In addition to the ordinary investigators, two scientists of Fukui Prefectural Dinosaur Museum, Kazuo Terada and Atsushi Yabe, joined the investigation as associate research members. Also a Chilean counterpart Luis Felipe Hinojosa was invited to Japan in June 2005 for material … More investigation and discussion. The results obtained until December 2005 were published as an joint issue including 9 papers, which is entitled "Post-Cretaceous Floristic Changes in Southern Patagonia, Chile" (Nishida H. ed., Chuo University, Tokyo, 107 pp.) at the end of 2005 fiscal year. Pollen analysis on bog-boring cores collected in Chile and Argentina is still in progress under management by Okuda. The core samples collected in Argentina are being investigated by Argentine counterpart scientists represented by Jorge Rabassa of CADIF-CONICET, Ushuaia. The results will be published elsewhere separately.This investigation made progress in understanding the floristic and climatic changes in Patagonia, promoting detailed comparisons with studies on other fossil assemblages known from Patagonia and the Antarctic regions. The new fossil localities, such as the Dorotea and San Sebastian sections, and the extraordinary preservation, such as permineralized plant debris from Riesco Island, will provide further useful data when studied extensively in the future. Less