Jaw movement in fossil mammals: analysis, description and visualization
Jaw movement in fossil mammals: analysis, description and visualization
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DOI：
10.1007/s12542-012-0142-4
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发表时间：
2013-03
期刊：
影响因子：
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通讯作者：
W. Koenigswald;Ulrike Anders;S. Engels;J. Schultz;O. Kullmer
中科院分区：
文献类型：
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作者：
W. Koenigswald;Ulrike Anders;S. Engels;J. Schultz;O. Kullmer
提供了不同哺乳动物咀嚼路径的术语和可视化，这些路径是由化石（和现存）牙齿上的磨损和磨损面和条纹的方向产生的。考虑左下颌的咬合运动，并以中等磨损阶段（IDAS 3）为标准。与传统术语相比，所提出的命名法区分了下颚运动的倾斜和方向，作为投射到一个水平面上的每个阶段的力量冲程。所提出的咀嚼罗盘试图结合力量冲程的三个方面：(1)相数，(2)咬合方向，(3)每个相的倾斜度。为了证明它的一般适用性，给出了几个分类群的描述和可视化。提出的新术语和咀嚼罗盘简化了不同哺乳动物类群中不同咀嚼模式的比较。
A terminology for and visualizations of different mammalian mastication paths are provided, resulting from orientation of attritional and abrasional facets and striation on fossil (and extant) teeth. The occlusal motion of the left lower jaw is considered, and a moderate wear stage (IDAS 3) is used as standard. In contrast to conventional terminologies, the proposed nomenclature differentiates between the inclination and the direction of the lower jaw movement as projected onto a horizontal plane for each phase of the power stroke. The proposed mastication compass attempts to combine three aspects of the power stroke: (1) the number of phases, (2) the occlusal direction, and (3) the inclination of each phase. Descriptions and visualizations are given for several taxa in order to demonstrate its general applicability. The proposed new terminology and the mastication compass simplify comparisons of different modes of mastication in different mammalian taxa.