COLLABORATIVE RESEARCH: Silicified Paleocene Plants from North Dakota: Phylogenetic and Biogeographic Significance

合作研究：北达科他州硅化古新世植物：系统发育和生物地理学意义

• 批准号: 0345569
• 负责人: Melanie DeVore
• 金额: --
• 依托单位: Georgia College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-04-15 至 2008-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0345569&HistoricalAwards=false
• 关键词: COLLABORATIVE; RESEARCH; Silicified; Paleocene; Plants

COLLABORATIVE PROPOSAL: Silicified Paleocene plants from North Dakota: phylogenetic and biogeographic significanceKathleen Pigg, Arizona State University; Melanie DeVore, Georgia CollegeEAR-0345838 and EAR-0345569ABSTRACTThe Late Paleocene marks a pivotal time in the early diversification of many important flowering plant families. Plants of this time occur after the biotic recovery from the Cretaceous-Tertiary extinction events, yet shortly before the major climate changes of the Paleocene/Eocene transition. The Late Paleocene Almont and Beicegel Creek floras from North Dakota provide an unparalleled opportunity to study the changing flora that occurred at this time and to expand the documentation of rarer Paleocene elements, especially the emergence of mostly temperate families (Ranunculaceae, the buttercup family) and genera [Cornus, (the dogwoods) and Acer (maples)]. Because these unusually preserved floras document both internal anatomy and external surface features of fossil plant remains, they can serve as a benchmark with which to compare two disparate types of fossils of the same age: European seed and fruit assemblages and leaf compression floras of western North America and Asia. The funded research will provide invaluable information useful for other studies focusing on the evolutionary history of temperate families (Actinidiaceae, Betulaceae, Ranunculaceae) and the biogeographic history and development of North American and Asian floras.This project will provide an excellent opportunity for outreach. First graduate and undergraduate students, including women and underrepresented groups will be trained in paleobiology. Second, there are a number of other avenues for outreach including incorporation of information in formal courses ranging from introductory environmental science to community ecology and plant anatomy, public lectures in museums, and activities for K-12 schools (through GC&SU's Academic Outreach Program). Finally, an exhibit on the Almont Flora will be established for GC&SU's new museum showcasing the research of the Department of Biology and Environmental Sciences five faculty members who work with Cenozoic floras and faunas.

合作提案：来自北达科他州的硅化古新世植物：系统发育和植物地理学意义Kathleen Pigg，Arizona州立大学; Melanie DeVore，格鲁吉亚学院-0345838和EJ-0345569摘要古新世晚期标志着许多重要开花植物家族早期多样化的关键时期。 这一时期的植物出现在生物从古新世-第三纪灭绝事件中恢复之后，但在古新世/始新世过渡的主要气候变化之前不久。来自北达科他州的晚古新世阿尔蒙特和贝塞格尔溪植物群为研究当时发生的变化植物群和扩大稀有古新世元素的文献提供了无与伦比的机会，特别是大多数温带科（毛茛科，毛茛科）和属[山茱萸（山茱萸）和槭（枫树）]的出现。 由于这些保存得异常完好的植物群记录了植物化石的内部解剖结构和外部表面特征，它们可以作为比较两种植物的基准。 同一时代的不同类型的化石：欧洲的种子和果实组合以及北美西部和亚洲的叶压缩植物群。 获资助的研究将为其他研究提供宝贵的资料，有助研究温带植物科（猕猴桃科、桦木科、毛茛科）的演化历史，以及北美洲和亚洲植物区系的地理历史和发展。 第一批研究生和本科生，包括妇女和代表性不足的群体，将接受古生物学培训。 其次，还有一些其他的外展渠道，包括在正式课程中纳入信息，从介绍环境科学到社区生态学和植物解剖学，博物馆的公开讲座，以及K-12学校的活动（通过GC SU的学术外展计划）。 最后，将为GC SU的新博物馆建立一个关于阿尔蒙特植物群的展览，展示生物学和环境科学系五名从事新生代植物群和动物群工作的教员的研究。