Refinement of Middle Ordovician Through Earlier Middle Devonian Global Biogeographies

本研究的目的是提高生物地理学的精细化程度，这将有助于对中奥陶世到中泥盆世这段相对缺乏约束的时间间隔的全球生物地理学、古地理学和板块构造关系的理解。工作包括准备和研究已经从世界各地收集的大量样本；其中包括来自越南、中国西北部、伊朗、纽约、秘鲁和新斯科舍省的腕足类动物的摄影、鉴定和比较分析。工作内容包括与美国和亚洲的同事合作。该项目是一项长期努力的一部分，目的是对显生宙大部分时期的气候敏感沉积物数据进行调查，以更可靠的细节描绘过去的气候带。

9417410 Boucot The aim of this research is to increase biogeographic refinement that will allow advances in understanding of global biogeography, paleogeography and plate tectonic relations for the relatively poorly constrained time interval from the Middle Ordovician to the Middle Devonian. Work involves preparation and study of a very large number of samples already collected from diverse parts of the world; included will be photography, identification, and comparative analysis of brachiopod collections from Vietnam, NW China, Iran, New York, Peru and Nova Scotia. Work includes collaboration with co-workers in the U.S. and Asia. The project is part of a long term effort to compile a survey of climatically sensitive sediment data for most of the Phanerozoic, in order to delineate climatic zones of the past in more reliable detail.