Dissertation Research: Form and Function of the Strepsirhine

摘要P.I.玛丽安·达戈斯托·SBR-9320237在早期灵长类化石和现存原猴的颅后骨骼中的相似性使早期研究人员得出结论，最早的灵长类动物的活动方式与现在的原猴相似。然而，很少有骨骼的特征与活体中特定的位置行为有可靠的关联，因此灭绝的早期灵长类动物的推断行为仍然不清楚，这使得从功能角度解释灵长类动物颅后形态的进化变化变得困难。与骨骼的任何其他元素相比，手和手腕确实反映了对不同运动模式的明显适应。可以建立包含腕关节形态特定变异的精确生物力学模型，以重建灵长类化石的位置/运动行为，并记录它们的系统发育变化模式。本论文通过视频、身体标本的解剖和骨骼标本中灵长类腕部的测量，将揭示灵长类腕部形态和位置行为的历史变迁。*P\anthro\jfred\9320237.abs-&amp；(+-！D-(Times新罗马符号&amp；Arial“h Pc EPC e=Jonathan Friedlaender Jonathan Friedlaender

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