Two distal humeral fragments are described from the middle Eocene Shanghuang fissures (southern Jiangsu Province, China). These specimens provide the first evidence of forelimb morphology among Shanghuang primates. One specimen belongs to an adapiform strepsirhine primate that is morphologically similar to European adapines, while the other pertains to a small haplorhine primate having numerous features in common with North American omomyids. Both fossils exhibit classic primate elbow adaptations that are functionally related to arboreality and climbing.
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Gebo et al. (2007) studied this question.
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