. Bulletin of the Natural Histort Museum. Geology series. 100 CHURCHILL. 4a 5a 4b 5b 4c 5c 4d 5d Figs 4, 5 Cough's cave 1 humeri in ventral (a), medial (b), dorsal (c) and lateral (d) views; 4, right-side humerus; 5, left-side humerus; x Table 5 Comparative scapular dimensions (mean, SD, n) Cough's Cave 1 (right) LUP/Meso 6 (right-I-left) LUP/Meso ? (right -I- left) Morphological length Axillary border length Glenoid articular length Glenoid articular breadth Glenoid index' , , ,7 23
. Bulletin of the Natural Histort Museum. Geology series. 100 CHURCHILL. 4a 5a 4b 5b 4c 5c 4d 5d Figs 4, 5 Cough's cave 1 humeri in ventral (a), medial (b), dorsal (c) and lateral (d) views; 4, right-side humerus; 5, left-side humerus; x Table 5 Comparative scapular dimensions (mean, SD, n) Cough's Cave 1 (right) LUP/Meso 6 (right-I-left) LUP/Meso ? (right -I- left) Morphological length Axillary border length Glenoid articular length Glenoid articular breadth Glenoid index' , , ,7 ,7 ,,7 All measurements are in millimeters and are defined in Table 4. " Glenoid index = (articular breadth/articular length) xlOO. The aiticular surfaces of the heads are fairly round, the left-side seems to be somewhat more oval shaped (with the long axis running superoinferiorly) than the right. The articular surfaces are smooth (save for erosional damage) and free of any signs of degeneration. The right humerus has some erosion over the lateral surface of the greater tubercle, and the only muscle attachment area not eroded is the 'facet' for the insertion of M. teres minor. On the left-side the greater tubercle is well preserved, revealing a distinct 'facet" for M. teres minor and a more diffuse attachment area for M. supraspinatus and M. infraspinatus. The attachment area for these muscles is smooth and there is no clear separation between the facets for the two muscles. Both sides have pronounced intertubercular sulci formed medially by superoinferior running pillars extending from the lesser tuberosities along the insertion areas for M. latissimus dorsi and M. teres major, and laterally by pronounced crests for M. pectoralis major. The pillars are non-rugose (except at the muscle attachment areas) and the M. pectoralis major scars are only mildly rugose. The deltoid tuberosities are not pronounced, but appear instead as slightly projecting, rugose
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