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.

哺乳动物中耳通过祖先爬行动物颌关节的生物力学“重新流动”的非凡转变，也在哺乳动物发育中概括，产生了极大的提高的喂养和听力效率，这是哺乳动物成功故事的关键。在最新的方法论进步的基础上，该项目将采用尖端的二维协议来解释这种过渡的这些机械细节。这包括整合第一个未变形的胚胎软组织证据，以探索过渡下巴中肌肉排列的证据。通过大大改善传统的二维方法，该项目将维持澳大利亚在虚拟生物力学快速发展领域的领先地位。