Rosenberger A L, Kinzey W G
Am J Phys Anthropol. 1976 Sep;45(2):281-98. doi: 10.1002/ajpa.1330450214.
Mechanico-functional features of molar form were studied in Callithrix, Alouatta, Pithecia and Cebus. Molars of Callithrix and Alouatta are adapted to loading foods under relatively high occlusal pressure; those of Pithecia and Cebus, under relatively low occlusal pressure. General functional considerations suggest that these taxa are adapted to insectivorous, folivorous, frugivorous and omnivorous diets, respectively. The physical properties of foods, principally mechanical strength and deformability, determine the selective pressures involved in the evolutionary adaptation of molar form. A dietary classification based upon percentages of foods eaten does not always reflect morphological adaptations. Homologous parts of teeth and homologous parts of the masticatory cycle do not always subserve equivalent functions. The relevance of functional occlusal analysis for deciphering phylogeny and explaining evolutionary grades is stressed.
在狨猴属、蛛猴属、丛尾猴属和卷尾猴属动物中研究了臼齿形态的机械功能特征。狨猴属和蛛猴属的臼齿适合在相对较高的咬合压力下咀嚼食物；丛尾猴属和卷尾猴属的臼齿则适合在相对较低的咬合压力下咀嚼食物。一般功能方面的考虑表明，这些分类群分别适应食虫、食叶、食果和杂食性饮食。食物的物理特性，主要是机械强度和可变形性，决定了臼齿形态进化适应过程中所涉及的选择压力。基于所食食物百分比的饮食分类并不总是反映形态学上的适应性。牙齿的同源部分和咀嚼周期的同源部分并不总是发挥同等的功能。强调了功能咬合分析对于解读系统发育和解释进化等级的相关性。
