. Bulletin. Natural history. THE POSTCRANIAL SKELETON OF AFRICAN CYNODONTS 103. fig. 20. Diagrammatic medial view of the shoulder girdles of various tetrapods with actual (dotted lines) or reconstructed attachments of some major muscles. A, Eryops; B, Diadectes; C, Dimetrodon, modified after Romer, 1922b: PI. 34; D, Sphenodon, after Furbringer, 1900; E, Iguana, after Romer, 1922b: PI. 34; F, Cynognathus, clavicle and interclavicle not illustrated. Abbreviations: st cost cor, sterno-costo-coracoideus. For other abbreviations, see Fig. 19. fig. 19 (left). Diagrammatic lateral view of the shoulde
. Bulletin. Natural history. THE POSTCRANIAL SKELETON OF AFRICAN CYNODONTS 103. fig. 20. Diagrammatic medial view of the shoulder girdles of various tetrapods with actual (dotted lines) or reconstructed attachments of some major muscles. A, Eryops; B, Diadectes; C, Dimetrodon, modified after Romer, 1922b: PI. 34; D, Sphenodon, after Furbringer, 1900; E, Iguana, after Romer, 1922b: PI. 34; F, Cynognathus, clavicle and interclavicle not illustrated. Abbreviations: st cost cor, sterno-costo-coracoideus. For other abbreviations, see Fig. 19. fig. 19 (left). Diagrammatic lateral view of the shoulder girdles of various tetrapods with actual (dotted lines) or reconstructed attachments of some major muscles. A, Eryops; B, Diadectes; C, Dimetrodon, all after Romer, 1922b: PI. 33; D, Sphenodon, modified after Furbringer, 1900; E, Iguana, after Romer, 1922b: PI. 33; F, Cynognathus, clavicle and interclavicle not illustrated; G, Tachyglossus, after Westling, 1889: PI. 2, and Howell, 1937a. Not to scale. Abbreviations: bi, biceps; cb, coracobrachialis; ebb, short head of coracobrachialis; cbl, long head of coracobrachialis; elm, cleidomastoideus; dlt, deltoid ; dsc, dorsoscapularis; isp, infraspinatus; lev scap, levator scapu- lae; p, pectoralis; psch, proscapulohumeralis (see Howell, 1937a) ; she, subcoracoideus; sbese, sub- coracoscapularis; sbsc, subscapularis; scha, scapulohumeral anterior; schp, scapulohumeral posterior; ser, serratus; spc, supracoracoideus; supsc, suprascapular cartilage; t mj, teres major; t mn, teres minor; tr (c), coracoid head of the triceps; tr (s), scapular head of the triceps; trp, trapezius; tzs, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Peabody Museum of Natural History. New Haven, Peabody Museum of Natural History, Yale University
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