Collaborative Research: Continued Research on the Jurassic Vertebrate Fauna from the Beardmore Glacier Region of Antarctica

合作研究：对南极洲比尔德莫尔冰川地区侏罗纪脊椎动物群的持续研究

• 批准号: 1244253
• 负责人: William Hammer
• 金额: $ 19.04万
• 依托单位: Augustana College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1244253&HistoricalAwards=false
• 关键词: Collaborative; Research; Continued; Jurassic; Vertebrate

Intellectual Merit: This proposal requests support for research on Early Jurassic vertebrate fauna of the Beardmore Glacier region of Antarctica. The project will support preparation and systematic and paleobiological research on four Antarctic dinosaurs, including two new species, collected in the Central Transantarctic Mountains. With the new material Cryolophosaurus will become one of the most complete Early Jurassic theropods known, and thus has the potential to become a keystone taxon for resolving the debated early evolutionary history of theropod dinosaurs, the group that gave rise to birds. Two new dinosaur specimens include a nearly complete articulated skeleton of a juvenile sauropodomorph, and the articulated hip region of another small individual. Both appear to be new taxa. The dinosaurs from the Hanson Formation represent some of the highest paleolatitude vertebrates known from the Jurassic. The PIs will generate CT datasets for Cryolophosaurus and the more complete new sauropodomorph species to mine for phylogenetic trait information, and to investigate their comparative neuroanatomy and feeding behavior. Histological datasets will be generated from multiple skeletal elements for all four Mt. Kirkpatrick taxa to understand patterns of growth in different clades of polar dinosaurs and compare them to relatives from lower paleolatitudes. This paleohistological study of a relatively diverse sample of sauropodomorph taxa from Antarctica may contribute to determining whether and how these dinosaurs responded to contemporary climatic extremes.Broader impacts: The PIs have established a successful undergraduate training program as part of previous research. Summer interns from Augustana are trained at the Field Museum in specimen preparation, curation, molding/casting, and histological sampling. They also participate in existing Field Museum REU programs, including a course on phylogenetic systematics. Four undergraduate internships and student research projects will be supported through this proposal. The PIs will develop a traveling exhibit on Antarctic Mesozoic paleontology that they estimate will be seen by 2.5 million people over the five-year tour.

知识分子的优点：该提案要求支持南极比尔德莫尔冰川地区早期侏罗纪脊椎动物动物区系研究。该项目将支持对四个南极恐龙的制备以及系统的和古生物学研究，其中包括在跨二行山中部收集的两个新物种。随着新的材料，冻鱼龙将成为已知的最完整的早期侏罗纪兽脚类动物之一，因此有潜力成为基石分类单元，以解决质疑恐龙的早期进化历史，这引起了鸟类的群体。两个新的恐龙标本包括一个几乎完整的少年蜥脚类动物的骨骼，以及另一个小人物的铰接式髋部区域。两者似乎都是新的分类单元。来自汉森形成的恐龙代表了侏罗纪已知的一些最高的古质脊椎动物。 PI将生成用于冷冻龙的CT数据集和更完整的新型蜥蜴型物种，以挖掘出系统发育特征信息，并研究其比较神经解剖学和喂养行为。组织学数据集将从所有四个MT kirkpatrick分类单元的多个骨骼元素中生成，以了解不同的极性恐龙进化枝的生长模式，并将其与较低古质体的亲戚进行比较。这项对来自南极洲的相对多样化的蜥脚类动物类群样本样本的古生物学研究可能有助于确定这些恐龙是否对当代的极端极端反应。Boader的影响：PIS已建立了一项成功的本科培训计划，作为先前研究的一部分。来自奥古斯塔纳（Augustana）的暑期实习生在野外博物馆接受了标本准备，策展，成型/铸造和组织学抽样的培训。他们还参加了现有的野外博物馆REU计划，包括有关系统发育系统学课程。该建议将支持四个本科实习和学生研究项目。 PI将在南极中生代古生物学上开发一个巡回展览，在五年的巡回演出中，他们估计有250万人将看到他们估计的。