The reptile-mammal jaw transition as revealed by 3D imaging, embryology, and computational biomechanics: new approaches to some age old questions.

3D 成像、胚胎学和计算生物力学揭示的爬行动物-哺乳动物下颌转变：解决一些古老问题的新方法。

• 批准号: DP140102656
• 负责人: Prof Stephen Wroe
• 金额: $ 42.32万
• 依托单位: The University of New England
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2014
• 资助国家: 澳大利亚
• 起止时间: 2014-01-01 至 2017-05-15
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP140102656
• 关键词: reptile; mammal; jaw; transition; revealed

The extraordinary transformation of the mammalian middle ear through biomechanical 're-tooling' of the ancestral reptilian jaw joint, also recapitulated in mammalian development, yielded the greatly improved feeding and hearing efficiency that are key to the mammalian success story. Building on recent methodological advances, this project will employ cutting-edge two-dimensional protocols to explain these mechanical details of this transition. This includes integration of the first undistorted embryological soft-tissue evidence for muscular arrangements in the transitioning jaw. Through vastly improving on conventional two-dimensional approaches, the project will maintain Australia's leading position in the fast developing field of virtual biomechanics.

哺乳动物中耳的非凡转变，通过生物力学的“重新加工”的祖先爬行动物的颚关节，也重演在哺乳动物的发展，产生了极大的改善喂养和听力效率，是关键的哺乳动物的成功故事。基于最近的方法学进展，该项目将采用尖端的二维协议来解释这种转变的机械细节。这包括整合的第一个未变形的胚胎软组织的肌肉安排在过渡颌骨的证据。通过对传统二维方法的大幅改进，该项目将保持澳大利亚在快速发展的虚拟生物力学领域的领先地位。