Collaborative Research: Phylogenetic and Functional Analyses of Fossil and Living Walruses (Pinnipedia: Odobenidae)

合作研究：化石和活海象的系统发育和功能分析（鳍足纲：Odobenidae）

• 批准号: 9419802
• 负责人: Annalisa Berta
• 金额: $ 10.3万
• 依托单位: San Diego State University Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-04-01 至 1999-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9419802&HistoricalAwards=false
• 关键词: Collaborative; Research; Phylogenetic; Functional; Analyses

9419802 Archibald This taxonomic, phylogenetic and functional studies of fossil walruses (Odobenidae sensu Demere) will focus on exceptionally well preserved and systematically informative skeletal material from the Emlong Collection (USNM, Smithsonian Institution). Specific objectives of this study are: (1) to document obobenid diversity from the early Miocene through the Pliocene (17-3 million years ago), (2) to evaluate the systematic relationships of these Neogene odobenids that are especially critical to walrus phylogeny, and (3) to use this phylogenetic framework to investigate adaptation of feeding strategies and locomotor patterns among odobenids and related pinnipeds (seals and sea lions).

9419802阿奇博尔德这项关于海象化石的分类、系统发育和功能研究将侧重于来自埃姆龙收藏馆(美国史密森学会)保存极为完好和提供系统信息的骨骼材料。这项研究的具体目标是：(1)记录从中新世早期到上新世(1700万年前)的斜齿类多样性，(2)评估这些新近纪齿形类的系统关系，这些系统关系对海象的系统发育至关重要，(3)利用这个系统发育框架来研究齿形类和相关的管脚类(海豹和海狮)之间摄食策略和运动模式的适应。