. Bulletin of the Natural Histort Museum. Geology series. Figs 6, 7 Cough's Cave 1 ulnae, in ventral (a), medial (b). dorsal (c) and lateral (d) views; 6, right-side ulna; 7, left-side ulna; x Fig. 8 Cough's Cave 1 right ulna in lateral view; x 1. M. anconeus inseilion area is mildly rugose, occupying a narrow ridge (between the medial and lateral surfaces of the proximal shaft) on the dorsal surface of the shaft. This mildly rugose line continues distally until it joins with the line marking the aponeurotic attach- ment of M. flexor digitorum profundus, M. flexor carpi ulnaris and M. ex
. Bulletin of the Natural Histort Museum. Geology series. Figs 6, 7 Cough's Cave 1 ulnae, in ventral (a), medial (b). dorsal (c) and lateral (d) views; 6, right-side ulna; 7, left-side ulna; x Fig. 8 Cough's Cave 1 right ulna in lateral view; x 1. M. anconeus inseilion area is mildly rugose, occupying a narrow ridge (between the medial and lateral surfaces of the proximal shaft) on the dorsal surface of the shaft. This mildly rugose line continues distally until it joins with the line marking the aponeurotic attach- ment of M. flexor digitorum profundus, M. flexor carpi ulnaris and M. extensor carpi ulnaris. Supinator crests of both sides are well developed, beginning as pronounced crests arising from the inferodistal margins of the radial notches (Fig. 8). The crests con- tinue distally to a half centimeter or so below the M. hrachialis scar, where they stop and then resume again another 10-20mm distally. The distal portions of the M. supinator ridges follow the interosseous crests (lying just posterior to and on the lateral surface of the interosseous crests), about one-third of the way down the shaft. The posterior edge of the proximal portion of the M. supinator attach- ment area is also marked by a crest on the lateral surface below the trochlea. The M. hrachialis scars are moderately rugose, and present themselves as small raised patches (roughly 13mm proximodistally X 9mm mediolaterally on both sides). The area between the scars and the coronoid processes is mildly rugose. No markings are evident on either side for M. pronator teres. There is a large tubercle present on the anteromedial corner of the coronoid process in the area of the origin of the ulnar head of M. flexor digitorum supeificialis on the right-side. This area is somewhat damaged in the left-side ulna, but it is certain that the tubercle, if indeed it existed, was not nearly as large as that of the Please note that these images are extracted from scanned page images that may have
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