Late Cenozoic Invertebrates, Protists and Fish of the Tropical Eastern Pacific Ocean: Database for Comparisons with Caribbean Taxa Through Time

热带东太平洋的新生代晚期无脊椎动物、原生生物和鱼类：与加勒比分类群随时间变化的比较数据库

• 批准号: 9705289
• 负责人: Laurel Collins
• 金额: $ 19.79万
• 依托单位: Florida International University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-09-15 至 2002-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9705289&HistoricalAwards=false
• 关键词: Late; Cenozoic; Invertebrates; Protists; Fish

9705289 COLLINS The emergence of the Isthmus of Panama split apart a single tropical ocean, an event which had a profound impact on organismal evolution, ecologic systems and oceanic circulation. Fossils preserved in Eastern Pacific and Caribbean deposits comprise successive tropical American biotas that changed dramatically through the last 15 million years in response to the constriction and closure of the great Caribbean - Pacific seaway. Research based on Pacific and Caribbean collections of fossils will address these changes. The main goal of this project is a paleobiotic survey of shallow-water fossil faunas of coastal Ecuador, for comparison with Caribbean faunas of similar age and environment that were collected previously. This project, by Laurel Collins and colleagues, involves collecting Neogene marine fossils in Ecuador, preparing and identifying these collections, determining the ages and paleoenvironments of their stratigraphic sequences, designing a new database for the data, making the project's data available on the Internet, and using the collections in research. The identified faunas will include calcareous nannoplankton, foraminifera, ahermatypic corals, bryozoans, echinoderms, mollusks, ostracods and fish. The new model for the database will track the progress of preparing collections and identifying taxa, aid in dating samples and correlating strata, and serve as the repository for all faunal occurrence data, maps, stratigraphic sections, and locality information. Research based on these data will result in the most accurate assessment to date of the long-term effects of environmental change and isolation on marine biotas, and the data model will set the standard for field-based paleobiotic surveys.

9705289柯林斯巴拿马地峡的出现分裂了一个单一的热带海洋，这一事件对生物进化、生态系统和海洋环流产生了深远的影响。东太平洋和加勒比海沉积物中保存的化石包含了连续的热带美洲生物群落，它们在过去的1500万年中随着加勒比海-太平洋海道的收缩和关闭而发生了巨大的变化。基于太平洋和加勒比地区化石收藏的研究将解决这些变化。该项目的主要目标是对厄瓜多尔沿海浅水化石动物群进行古生物学调查，与之前收集的年龄和环境相似的加勒比动物群进行比较。该项目由劳雷尔·柯林斯及其同事负责，包括在厄瓜多尔收集新近纪海洋化石，准备和鉴定这些化石，确定其地层序列的年龄和古环境，为这些数据设计一个新的数据库，使项目数据在互联网上可用，并将这些收集的数据用于研究。已确定的动物将包括钙质纳米浮游生物、有孔虫、非典型珊瑚、苔藓虫、棘皮动物、软体动物、介形虫和鱼类。数据库的新模型将跟踪收集和识别分类群的进展，帮助确定样品的年代和对比地层，并作为所有动物发生数据、地图、地层剖面和地点信息的存储库。基于这些数据的研究将得出迄今为止最准确的评估环境变化和隔离对海洋生物的长期影响的结果，并且该数据模型将为基于实地的古生物调查设定标准。