. Bulletin of the Natural Histort Museum. Geology series. CRESWELLIAN HUMAN UPPER LIMB REMAINS dorsally and interiorly. The trapezoid line is rugose and well defined. The dorsolateral surface of the acromial end has a number of rugose tubercles, perhaps indicating the attachment of M. trapezius. There are no signs of degenerative changes on the sternal articular surface, while the acromial facet is pitted and vascular, with some very incipient lipping along the inferior border. (GC89 022)(Fig. 2) Right This long fragment represents the proximal end of a right clavicle, preservin
. Bulletin of the Natural Histort Museum. Geology series. CRESWELLIAN HUMAN UPPER LIMB REMAINS dorsally and interiorly. The trapezoid line is rugose and well defined. The dorsolateral surface of the acromial end has a number of rugose tubercles, perhaps indicating the attachment of M. trapezius. There are no signs of degenerative changes on the sternal articular surface, while the acromial facet is pitted and vascular, with some very incipient lipping along the inferior border. (GC89 022)(Fig. 2) Right This long fragment represents the proximal end of a right clavicle, preserving the superior portion of the sternal articular surface, most of the corpus laterally to the point of maximum curvature of the proximal shaft, and the superior and dorsal surfaces of the shaft to the proximal part of the M. deltoideus origination area (medial of the conoid tubercle). The inferior portion of the sternal end is broken away. In size and shape (including proximal shaft curvature) this specimen matches , with the exception that in the sternal epiphyseal plate is unfused and missing. Oblique cutmarks are evident on the superior surface near the sternal end. The M. pectoralis major appears to have been well developed in this individual. The superior line of attachment of the muscle begins as a projecting but only mildly rugose ridge on the anterosuperior margin of the clavicle just lateral of the sternal articular surface. The muscle attachment area is moderately rugose, and leaves a flattened surface laterally on the anterosuperior shaft that is almost continuous with the medial M. deltoideus attachment scar. Only a small portion of the M. deltoideus scar is preserved. Inferiorly, the costoclavicular ligament attachment area is a large, very deep and very rugose pit (Fig. 2B). A very clear ridge extends laterally from the costoclavicu- lar ligament pit, marking the inferior extent of the M. pectoralis major muscle. There also appears to be a crest for
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