Cross-Sectional Diaphyseal and Articular Structure of the Anthropoid Limb Skeleton

这是一项研究，以确定骨干结构如何 和关节大小与机械载荷有关 的四肢，并利用这些信息， 帮助重建早期类人猿和原始人类形态， 行为 该研究有两个组成部分：（1）测量交叉 前肢和后肢长骨断面尺寸 在现存人类和其他灵长类动物的比较样本中; 和（2）在化石标本中测量相同的性质， 使用这些数据来估计体重并重建 东非中新世和上新世-更新世化石。 交叉- 截面几何特性将通过 计算机断层扫描和断面轮廓数字化， 通过线性测量和几何测量的关节面面积 换算公式 研究结果将提供新的 结构和功能之间的关系的见解 新的细节和澄清， 早期类人猿和原始人的体型和行为。

This is a study to determine how the diaphyseal structure and joint size of long bones are related to mechanical loadings of limbs in the higher primates, and to use this information to help reconstruct early hominoid and hominid morphology and behavior. The study has two components: (1) to measure cross- sectional dimensions of long bones of the forelimb and hindlimb in a comparative sample of extant humans and other primates; and, (2) to measure the same properties in fossil specimens and use these data to estimate body mass and reconstruct behavior of East African Miocene and Plio-Pleistocene fossils. Cross- sectional geometric properties will be determined through computed tomography, and digitizing of section contours and articular surface areas through linear measurements and geometric conversion formulae. The results of the study will provide new insights into the relationship between structure and function of the anthropoid skeleton, and new details and clarification of body size and behavior in early hominoids and hominids.