Phenotypic Evolution in Lineages of Eocene and Miocene Foraminifera

始新世和中新世有孔虫谱系的表型进化

• 批准号: 8708563
• 负责人: Philip Gingerich
• 金额: $ 8.27万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-11-15 至 1990-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8708563&HistoricalAwards=false
• 关键词: Phenotypic; Evolution; Lineages; Eocene; Miocene

Foraminifera are single-celled animals that secrete a calcareous exoskeleton commonly found in the fossil record of marine life. Principal Investigators Kitchell and MacLeod propose to use complementary analytical techniques to study the ancestor-descendant relationships within several lineages of foraminifera, as well as the type and rate of morphological changes occurring in each lineage. Morphological changes will be established relative to 1) the appearance of new species, 2) changes in the temperature and salinity of the ancient oceans, and 3) differences in life-habit between bottom-dwelling and floating species. The project is ambitious and unique in combining cladistics, morphometrics, biostratigraphy and paleoceanography. Results would have implications for evolutionary biologists in general, and would serve as a model for future micropaleontological research.

有孔虫是单细胞动物， 在化石记录中常见的钙质外骨骼 海洋生物 主要调查员Kittern和麦克劳德 建议使用补充分析技术来研究 在几个血统的祖先后代关系 有孔虫，以及形态的类型和比率 每一种变化都在发生。 形态变化将 1）新物种的出现，2） 古代海洋温度和盐度的变化 （3）底栖和 漂浮的物种 该项目雄心勃勃，在结合分支系统学， 形态测量学、生物地层学和古海洋学。 结果 会对进化生物学家产生影响， 并将作为未来微体古生物学的模型 research.