Dissertation Research: Form and Function of the Strepsirhine

摘要 P.I. Marian Dagosto SBR- 9320237 早期化石灵长类和现存原猴亚目动物的颅后骨骼的相似性使早期的研究人员得出结论，最早的灵长类动物以类似的方式移动到现在的原猴亚目动物。 然而，很少有骨骼的特征与生活形式中的特定位置行为可靠地相关，因此灭绝的早期灵长类动物的推断行为仍然不清楚，很难从功能的角度解释灵长类动物颅后形态的进化变化。 手和手腕比骨骼的任何其他部分都更能反映出对不同运动模式的明显适应。 精确的生物力学模型，结合手腕形态的特定变化，可以制定重建化石灵长类动物的位置/运动行为，并记录其系统发育模式的变化。 本论文的研究，使用视频，解剖尸体标本，并在骨骼收集灵长类手腕测量，将揭示灵长类手腕形态和位置行为的历史转变。 [*] P\anthro\jfried\9320237.abs - & ( + - ! ! ! ! D - - ( Times New Roman 符号Arial " H PC e PC e = 乔纳森·弗里德兰德

ABSTRACT P.I. Marian Dagosto SBR- 9320237 Similarities in the post-cranial skeletons of early fossil primates and extant prosimians have led earlier researchers to conclude that the earliest primates moved about in similar ways to current prosimians. However, very few features of the skeleton have been reliably correlated with specific positional behaviors in living forms, so that the inferred behaviors of extinct early primates remain unclear, making it difficult to interpret evolutionary change in primate postcranial morphology from a functional perspective. More than any other element of the skeleton, the hand and wrist do reflect clear adapations to different locomotor patterns. Precise biomechanical models incorporating specific variation in wrist morphology can be formulated to reconstruct positional/locomotor behaviors in fossil primates and to document their phylogenetic patterns of change. This dissertation research, using video, dissection of cadaver specimens, and measurement of primate wrists in skeletal collections, will reveal historical transitions in primate wrist morphology and positional behavior. *** P\anthro\jfried\9320237.abs - & ( + - ! ! ! ! D - - ( Times New Roman Symbol & Arial " h Pc ePc e = Jonathan Friedlaender Jonathan Friedlaender