Collaborative Research: Faunal Composition, Provinciality and Paleobiolgy of a Late Cretaceous Arctic Vertebrate Assemblage Revealed Through Cross-Latitudinal Comparisons

合作研究:通过跨纬度比较揭示白垩纪晚期北极脊椎动物群的动物群组成、省域性和古生物学

基本信息

  • 批准号:
    1736386
  • 负责人:
  • 金额:
    $ 13.11万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2017
  • 资助国家:
    美国
  • 起止时间:
    2017-09-01 至 2021-08-31
  • 项目状态:
    已结题

项目摘要

The 70-million year old Prince Creek Formation of Arctic Alaska provides fossil evidence that a surprisingly diverse array of dinosaurs, birds, flying reptiles and small mammals lived in polar forests characterized by warm summers and five- to six-months of darkness and snowfall during the polar winter. Enduring these seasonally intense and variable conditions makes these animals uniquely suited to test major paleobiological questions pertaining to physiology, migration, body size changes, ecology and distribution. This project will examine these questions through new Arctic specimen collections and identifications, temperature determinations and growth studies, and comparison to findings with animals living at warmer lower latitudes. This project will bring together a diverse team of scientists who will share new ideas and methodologies and contribute to the education and training of graduate and undergraduate students. Results will be disseminated in scientific venues and presented publicly through museum exhibitions and K-12 presentations. The latter will include visits to rural, northern Alaskan schools to provide underserved Alaska Native students and teachers with an opportunity to learn about the fossils in their area and interact with NSF-sponsored researchers. Using macro- and microfossil remains, this study will establish a comprehensive dataset on the faunal composition of a Mesozoic polar assemblage, including descriptions of probable new species unique to the Arctic. Statistical techniques will be used to compare the faunal compositions between mid- and high latitudes to understand North American distribution patterns. Histological analyses of bones and teeth will provide the first rigorous testing of the affects of polar environments on the growth and physiology of dinosaurs and mammals. Lastly, a novel technique using biomarkers will be used to provide more precise paleotemperature estimates to understand the temperature regime experienced by the polar fauna.
北极阿拉斯加的7000万年前的Prince Creek地层提供了化石证据,证明在极地森林中生活着令人惊讶的各种恐龙,鸟类,飞行爬行动物和小型哺乳动物,其特点是温暖的夏季和极地冬季五到六个月的黑暗和降雪。忍受这些季节性的强烈和多变的条件,使这些动物特别适合测试有关生理学,迁移,身体大小变化,生态学和分布的主要古生物学问题。该项目将通过新的北极标本收集和鉴定、温度测定和生长研究以及与生活在较温暖低纬度的动物的研究结果进行比较来研究这些问题。该项目将汇集一个多元化的科学家团队,他们将分享新的想法和方法,并为研究生和本科生的教育和培训做出贡献。研究结果将在科学场所传播,并通过博物馆展览和K-12演示公开展示。后者将包括访问农村,北方阿拉斯加学校提供服务不足的阿拉斯加原住民学生和教师有机会了解他们地区的化石,并与NSF赞助的研究人员互动。这项研究将利用宏观和微观化石遗骸,建立一个关于中生代极地组合动物群组成的综合数据集,包括对北极特有的可能新物种的描述。统计技术将用于比较中纬度和高纬度地区的动物群组成,以了解北美的分布模式。对骨骼和牙齿的组织学分析将首次对极地环境对恐龙和哺乳动物的生长和生理的影响进行严格的测试。最后,一种新的技术,使用生物标志物将被用来提供更精确的古温度估计,以了解极地动物所经历的温度制度。

项目成果

期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Northernmost record of the Metatheria: a new Late Cretaceous pediomyid from the North Slope of Alaska
  • DOI:
    10.1080/14772019.2018.1560369
  • 发表时间:
    2019-02
  • 期刊:
  • 影响因子:
    2.6
  • 作者:
    J. Eberle;W. Clemens;P. McCarthy;A. Fiorillo;G. Erickson;P. Druckenmiller
  • 通讯作者:
    J. Eberle;W. Clemens;P. McCarthy;A. Fiorillo;G. Erickson;P. Druckenmiller
Nesting at extreme polar latitudes by non-avian dinosaurs
  • DOI:
    10.1016/j.cub.2021.05.041
  • 发表时间:
    2021-08-23
  • 期刊:
  • 影响因子:
    9.2
  • 作者:
    Druckenmiller,Patrick S.;Erickson,Gregory M.;Eberle,Jaelyn J.
  • 通讯作者:
    Eberle,Jaelyn J.
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Gregory Erickson其他文献

Effect of Negative Pressure Wound Therapy on the Elution of Antibiotics From Polymethylmethacrylate Beads in a Porcine Simulated Open Femur Fracture Model
负压伤口治疗对模拟猪股骨开放性骨折模型中聚甲基丙烯酸甲酯珠中抗生素洗脱的影响
  • DOI:
    10.1097/bot.0b013e31825354ce
  • 发表时间:
    2012
  • 期刊:
  • 影响因子:
    2.3
  • 作者:
    Thomas M. Large;G. Douglas;Gregory Erickson;J. Kevin Grayson
  • 通讯作者:
    J. Kevin Grayson
Enamel microstructure and dental histology in a heterodontosaurid dinosaur: Heterodontosaurus tucki
异齿龙科恐龙的牙釉质微观结构和牙齿组织学:塔基异齿龙
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Cecilia Calvert;Tyler Hunt;Niall Whalen;J. N. Choiniere;M. Norell;Gregory Erickson
  • 通讯作者:
    Gregory Erickson

Gregory Erickson的其他文献

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{{ truncateString('Gregory Erickson', 18)}}的其他基金

EAGER/Collaborative Research: Understanding How Enamel Prism Lattices Promote a Remarkable Combination of Fracture and Wear Resistance in Grazing Mammal Dentitions
EAGER/合作研究:了解牙釉质棱镜晶格如何促进放牧哺乳动物牙列的抗折性和耐磨性的显着组合
  • 批准号:
    1937050
  • 财政年份:
    2019
  • 资助金额:
    $ 13.11万
  • 项目类别:
    Standard Grant
Collaborative Research: Arctic Dinosaur Paleobiology - HypothesisTesting Through Cross-Latitudinal Comparison
合作研究:北极恐龙古生物学——通过跨纬度比较进行假设检验
  • 批准号:
    1226704
  • 财政年份:
    2012
  • 资助金额:
    $ 13.11万
  • 项目类别:
    Standard Grant
COLLABORATIVE RESEARCH: EVOLUTION OF THE HADROSAURID DENTITION--HISTOLOGICAL AND BIOMECHANICAL INSIGHTS INTO ADVANCED REPTILIAN HERBIVORY
合作研究:鸭嘴龙牙齿的进化——高级爬行动物食草动物的组织学和生物力学见解
  • 批准号:
    0959029
  • 财政年份:
    2010
  • 资助金额:
    $ 13.11万
  • 项目类别:
    Continuing Grant
Collaborative Research: The Role of Development and Life History Traits in the Evolution of Ceratopsian Dinosaurs
合作研究:发育和生活史特征在角龙恐龙进化中的作用
  • 批准号:
    0418649
  • 财政年份:
    2004
  • 资助金额:
    $ 13.11万
  • 项目类别:
    Standard Grant
Collaborative Research: Life History Strategies, Growth Rates and Microstructural Character Evolution across the Coelurosaurian/Avialan Transition
合作研究:虚骨龙/阿维亚兰过渡期间的生活史策略、生长率和微观结构特征进化
  • 批准号:
    0207744
  • 财政年份:
    2002
  • 资助金额:
    $ 13.11万
  • 项目类别:
    Continuing Grant
Biomechanical Evolution of Enamel and the Diversification of Vertebrates
牙釉质的生物力学进化和脊椎动物的多样化
  • 批准号:
    0003008
  • 财政年份:
    2000
  • 资助金额:
    $ 13.11万
  • 项目类别:
    Standard Grant
Postdoctoral Research Fellowship in Biosciences Related to the Environment for FY 1997
1997财年环境相关生物科学博士后研究奖学金
  • 批准号:
    9750190
  • 财政年份:
    1998
  • 资助金额:
    $ 13.11万
  • 项目类别:
    Fellowship Award

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