Late Cretaceous Vertebrates from Madagascar: Implications for Gondwanan Biogeography
马达加斯加白垩纪晚期脊椎动物:对冈瓦纳生物地理学的启示
基本信息
- 批准号:0106477
- 负责人:
- 金额:$ 28.02万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2001
- 资助国家:美国
- 起止时间:2001-09-01 至 2005-04-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
ABSTRACTLATE CRETACEOUS VERTEBRATES FROM MADAGASCAR:IMPLICATIONS FOR GONDWANAN BIOGEOGRAPHYDavid W. Krause, Gregory A. Buckley, Catherine A. Forster, Raymond R. Rogers, and Scott D. SampsonEAR-0106477PIs previous NSF-funded research has established the Mahajanga Basin of NW Madagascar as having some of the most complete and spectacularly preserved specimens of Late Cretaceous vertebrates from the southern hemisphere. Their discoveries have quintupled the previously known species diversity of Late Cretaceous vertebrates from the island and now include specimens of fishes, frogs, turtles, snakes, crocodyliforms, dinosaurs, birds, and mammals. More broadly, investigators involved in the Mahajanga Basin Project have elucidated the anatomy, paleobiology, and phylogenetic relationships of several vertebrate higher taxa, documented the Upper Cretaceous stratigraphy and sedimentology of the basin, provided key insights into the biogeographic origins of both the extinct and extant vertebrate faunas of the island, and shed significant new light on Gondwanan plate tectonics during the Mesozoic. Much remains to be done, however, in the vast expanses of paleontologically and geologically unexplored Cretaceous rocks of the Mahajanga Basin. It is clear that, even in the primary study area, the diversity of vertebrates remains inadequately sampled when compared to more thoroughly studied areas elsewhere in the world. Furthermore, despite the exquisite quality and completeness of the specimens of some taxa, the vast majority of species are represented by only fragmentary and isolated specimens. Finally, the unconsolidated nature of the Upper Cretaceous strata and the high annual rainfall ensures that the supply of new localities and new specimens is replenished on an annual basis. With continued work, the PIs are confident that the Mahajanga Basin vertebrate fauna will become one of the best sampled faunas of Cretaceous age and one of the primary standards against which other Gondwanan faunas are compared. The primary goals of the current proposal are to expand preliminary efforts through additional discoveries of fossil vertebrates in the still under-sampled primary field area; investigation of new field areas discovered in 1999; anatomical, functional, and phylogenetic analysis of specimens already discovered but still unstudied or only partly studied; additional elucidation of geologic context, including paleoenvironment and paleoclimate; and testing of biogeographic and plate tectonic hypotheses related to the breakup of Gondwana.
马达加斯加的抽象白垩纪脊椎动物:对冈纳生物地理学的意义David W.作者:A.作者:Catherine A. Forster,Raymond R. Rogers,and Scott D.以前由NSF资助的研究已经确定马达加斯加西北部的Mahajanga盆地拥有一些来自南半球的晚白垩世脊椎动物的最完整和保存最完好的标本。 他们的发现使岛上已知的晚白垩世脊椎动物物种多样性增加了五倍,现在包括鱼类、青蛙、海龟、蛇、鳄鱼、恐龙、鸟类和哺乳动物的标本。 更广泛地说,参与马哈赞加盆地项目的研究人员已经阐明了几种脊椎动物高等类群的解剖学,古生物学和系统发育关系,记录了盆地的上白垩纪地层学和沉积学,为该岛灭绝和现存脊椎动物动物群的地理起源提供了关键见解,并在中生代期间对冈瓦纳板块构造提出了重要的新见解。 然而,在马哈赞加盆地的广阔的古生物学和地质学未勘探的白垩纪岩石中,还有许多工作要做。 很明显,即使在主要研究区,与世界上其他更彻底研究的地区相比,对脊椎动物多样性的取样仍然不足。 此外,尽管一些分类群的标本质量精美,完整,但绝大多数物种仅以零碎和孤立的标本为代表。 最后,上白垩纪地层的松散性质和高年降雨量确保了新地点和新标本的供应每年都会得到补充。 通过持续的工作,PI相信Mahajanga盆地脊椎动物群将成为白垩纪最好的动物群样本之一,也是与其他冈瓦纳动物群进行比较的主要标准之一。目前建议的主要目标是扩大初步努力,在采样仍然不足的主要野外地区发现更多的脊椎动物化石;调查1999年发现的新野外地区;对已经发现但尚未研究或仅部分研究的标本进行解剖、功能和系统发育分析;进一步阐明地质背景,包括古环境和古气候;以及检验与冈瓦纳大陆断裂有关的地理学和板块构造假说。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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David Krause其他文献
Responsible Development of Internal GenAI Systems
- DOI:
10.2139/ssrn.4834767 - 发表时间:
2024 - 期刊:
- 影响因子:0
- 作者:
David Krause - 通讯作者:
David Krause
Polychlorinated Biphenyl Interactions with Tissue Culture Cells†
多氯联苯与组织培养细胞的相互作用†
- DOI:
- 发表时间:
1972 - 期刊:
- 影响因子:10.4
- 作者:
R. Hoopingarner;Albert Samuel;David Krause - 通讯作者:
David Krause
Evaluation of AGS Beers Criteria Medications in a Commercial Pharmacogenetic Population
- DOI:
10.1016/j.jagp.2024.01.209 - 发表时间:
2024-04-01 - 期刊:
- 影响因子:
- 作者:
Daniel Dowd;David Krause;Seema Patel - 通讯作者:
Seema Patel
Making of a Successful Early Mobilization Program for a Medical Intensive Care Unit
为医疗重症监护病房制定成功的早期活动计划
- DOI:
- 发表时间:
2016 - 期刊:
- 影响因子:0
- 作者:
Mark Sigler;K. Nugent;R. Alalawi;K. Selvan;J. Tseng;H. Edriss;Alisha Turner;K. Valdez;David Krause - 通讯作者:
David Krause
ACUTE LUPUS MYOCARDITIS TREATED WITH HIGH DOSE STEROIDS AND MYCOPHENOLATE MOFETIL
- DOI:
10.1016/s0735-1097(17)35787-x - 发表时间:
2017-03-21 - 期刊:
- 影响因子:
- 作者:
Travis Harrell;Catherine K. Imes;Melissa S. Butts;David Krause - 通讯作者:
David Krause
David Krause的其他文献
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{{ truncateString('David Krause', 18)}}的其他基金
Collaborative Research: Curating, digitizing and disseminating results from an unparalleled collection of fossil vertebrates from the Late Cretaceous of Madagascar
合作研究:整理、数字化和传播来自马达加斯加白垩纪晚期的无与伦比的脊椎动物化石收藏的结果
- 批准号:
2242716 - 财政年份:2023
- 资助金额:
$ 28.02万 - 项目类别:
Continuing Grant
Cretaceous Vertebrates from Madagascar: A Window into the Biogeographic and Plate Tectonic History of Gondwana
马达加斯加的白垩纪脊椎动物:了解冈瓦纳生物地理和板块构造历史的窗口
- 批准号:
1664432 - 财政年份:2016
- 资助金额:
$ 28.02万 - 项目类别:
Continuing Grant
Cretaceous Vertebrates from Madagascar: A Window into the Biogeographic and Plate Tectonic History of Gondwana
马达加斯加的白垩纪脊椎动物:了解冈瓦纳生物地理和板块构造历史的窗口
- 批准号:
1528273 - 财政年份:2015
- 资助金额:
$ 28.02万 - 项目类别:
Continuing Grant
Cretaceous Vertebrates from Madagascar: A Window into the Biogeographic and Plate Tectonic History of Gondwana
马达加斯加的白垩纪脊椎动物:了解冈瓦纳生物地理和板块构造历史的窗口
- 批准号:
1123642 - 财政年份:2011
- 资助金额:
$ 28.02万 - 项目类别:
Standard Grant
DISSERTATION RESEARCH: Phylogeny and Cretaceous Biogeography of Gondwanan Mesoeucrocodylia
论文研究:冈瓦纳中真鳄鱼的系统发育和白垩纪生物地理学
- 批准号:
1011302 - 财政年份:2010
- 资助金额:
$ 28.02万 - 项目类别:
Standard Grant
Dissertation Research: Taxonomy, Phylogeny, and Paleobiology of Late Paleocene Plesiadapidae (Mammalia, Primates): Implications for the Origin of Euprimates
论文研究:晚古新世 Plesiadapidae(哺乳动物、灵长类)的分类学、系统发育和古生物学:对真灵长类起源的启示
- 批准号:
0622544 - 财政年份:2006
- 资助金额:
$ 28.02万 - 项目类别:
Standard Grant
The Mahajanga Basin Project: Late Cretaceous Vertebrates from Madagascar and Their Implications for the Biogeographic History of Gondwana
马哈赞加盆地项目:来自马达加斯加的白垩纪晚期脊椎动物及其对冈瓦纳生物地理历史的影响
- 批准号:
0446488 - 财政年份:2005
- 资助金额:
$ 28.02万 - 项目类别:
Continuing Grant
The Crazy Mountains Basin Project: Composition, Diversity, and Evolution of Paleocene Mammalian Faunas
疯狂山脉盆地项目:古新世哺乳动物区系的组成、多样性和演化
- 批准号:
0308902 - 财政年份:2003
- 资助金额:
$ 28.02万 - 项目类别:
Standard Grant
COLLABORATIVE RESEARCH: Late Creataceous Vertebrates from Madagascar: Implications for Gondwanan Biogeography
合作研究:马达加斯加的白垩纪晚期脊椎动物:对冈瓦纳生物地理学的影响
- 批准号:
9706302 - 财政年份:1997
- 资助金额:
$ 28.02万 - 项目类别:
Continuing Grant
DISSERTATION RESEARCH: Trophic Diversity of Early Paleocene Ungulates (Mammalia, "Condylarthra")
论文研究:古新世早期有蹄类动物(哺乳动物,“Condylarthra”)的营养多样性
- 批准号:
9624939 - 财政年份:1996
- 资助金额:
$ 28.02万 - 项目类别:
Standard Grant
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