Paleobiology and Taphonomy of Lower Cambrian Burgess Shale-Type Deposits of Nevada and Greenland

内华达州和格陵兰岛下寒武统伯吉斯页岩型矿床的古生物学和埋藏学

基本信息

项目摘要

ABSTRACTPALEOBIOLOGY AND TAPHONOMY OF LOWER CAMBRIAN BURGESS SHALE-TYPE DEPOSITS OF NEVADA AND GREENLANDLoren E. BabcockEAR-0106883This study involves the paleobiology and taphonomy (postmortem history) of two Early Cambrian Burgess Shale-type biotas from western Nevada and North Greenland. The biotas, both from the Laurentian (North America-Greenland) paleocontinent, represent two of the oldest known assemblages of exceptionally preserved animals in the world. These assemblages overlap in part the time of the Cambrian adaptive radiation of multicellular animals. They provide important "windows" into the evolutionary history of the Early Cambrian, and they should provide information about the conditions under which exceptional preservation occurred. The primary purposes of this work are: 1, to collect and document the biota of the new Nevada site and continue documentation of the biota of the Greenland site; 2, to document and interpret information about the taphonomy of the Nevada and Greenland sites; 3, to describe and interpret trace fossils associated with the body fossils; 4, to describe and interpret the stratigraphic and sedimentologic context of exceptional preservation in the Nevada and Greenland sites; and 5, to determine the biogeographic affinities of nonmineralized organisms present in the Early Cambrian biotas. Completion of this work will provide important information about biologic diversity on the North America-Greenland paleocontinent prior to the terminal Early Cambrian extinction. This, in turn, is expected to provide a strong basis for biogeographic comparison with Early Cambrian biotas of Gondwanan areas, and a basis for comparison with biotas from the Middle Cambrian of Laurentia.
内华达和格陵兰早寒武世Burgess页岩型生物群的古生物学和化石学研究Loren E.Babockear-0106883研究了内华达西部和格陵兰北部两个早寒武世Burgess页岩型生物群的古生物学和化石化石学(死后历史)。这两个生物群都来自劳伦斯(北美-格陵兰)古大陆,代表了世界上已知的两个保存异常完好的最古老的动物组合。这些组合部分地重叠了多细胞动物寒武纪适应性辐射的时间。它们为了解早寒武世的进化史提供了重要的“窗口”,它们应该提供有关特殊保存发生的条件的信息。这项工作的主要目的是:1,收集和记录内华达新遗址的生物群,并继续记录格陵兰遗址的生物群;2,记录和解释有关内华达和格陵兰遗址的生物分类信息;3,描述和解释与遗体化石有关的遗迹化石;4,描述和解释内华达和格陵兰遗址特殊保存的地层和沉积学背景;以及5,确定早寒武世生物群中存在的非矿化生物的生物地理亲缘关系。这项工作的完成将提供有关早寒武纪末期灭绝之前北美-格陵兰古大陆生物多样性的重要信息。这反过来又有望为与冈德瓦南地区早寒武世生物群的生物地理对比提供强有力的基础,并为与劳伦西亚中寒武纪生物群的对比提供基础。

项目成果

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Loren Babcock其他文献

Loren Babcock的其他文献

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{{ truncateString('Loren Babcock', 18)}}的其他基金

Paleobiology and Taphonomy of Exceptional Preserved Fossils from Jurassic Lacustrine Deposits, Beardmore Glacier Area and Southern Victoria Land, Antarctica
南极洲比尔德莫尔冰川地区和维多利亚州南部地区侏罗纪湖泊沉积物中保存完好的化石的古生物学和埋藏学
  • 批准号:
    0229757
  • 财政年份:
    2003
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
(SGER) Paleobiology and Paleoenvironmental Circumstances of Early Cambrian Burgess Shale-Type Deposit, Nevada
(SGER) 内华达州早寒武世 Burgess 页岩型矿床的古生物学和古环境情况
  • 批准号:
    0073089
  • 财政年份:
    2000
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Collaborative Investigation of Earliest Crayfish: Paleobiologic, Paleoecologic and Paleoclimatic Implications
最早的小龙虾的合作研究:古生​​物学、古生态学和古气候的影响
  • 批准号:
    9614989
  • 财政年份:
    1997
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Paleobiology and Taphonomy of Soft-Bodied Organisms from the Chengjiang Biota (Early Cambrian), Yunnan Province, China
中国云南省澄江生物群(早寒武世)软体生物的古生物学和埋藏学
  • 批准号:
    9405990
  • 财政年份:
    1994
  • 资助金额:
    --
  • 项目类别:
    Standard Grant

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