. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Pareiasaurian Studies.—Part VIII. 447 ventral to the notch in the glenoidal border, and is large and of oval shape. It penetrates the girdle obliquely to open high up on the internal surface of the scapula in a groove (subscapular fossa) which is anteriorly limited by a dorso-ventrally directed broad, but low, ridge (supra-glenoid buttress). On the rudimentary triangular fossa postero-dorsal of the glenoid cavity there is a pit which may be the rudimentary remains of the primitive supra-glenoidal for
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Pareiasaurian Studies.—Part VIII. 447 ventral to the notch in the glenoidal border, and is large and of oval shape. It penetrates the girdle obliquely to open high up on the internal surface of the scapula in a groove (subscapular fossa) which is anteriorly limited by a dorso-ventrally directed broad, but low, ridge (supra-glenoid buttress). On the rudimentary triangular fossa postero-dorsal of the glenoid cavity there is a pit which may be the rudimentary remains of the primitive supra-glenoidal foramen. The three elements of the scapular girdle are very closely and. Fig. 5. -Anterior view of the pectoral girdle of Bradysaurus ,i (9137). x TV strongly fused, and it is not always possible (particularly in old individuals) to determine the sutures with exactitude. The scapulo- coracoidal suture is more often clearly visible than the coraco- precoracoidal. On the external surface the former can be seen com- mencing anteriorly at a slight notch half-way between the medial coracoidal border and the acromion process ; from there it runs slightly obliquely downwards to the upper border of the precoracoidal foramen ; then obliquely upwards to the notch on the antero-ventral border of the glenoid cavity ; through the glenoid it passes along the deepest part, running obliquely upwards along the line of demarca- tion of the two surfaces of the glenoid articulation ; emerging from the glenoid it passes round the posterior border through a slight notch to the internal face, where it extends to the anterior border along a downwardly sagging line marked by a low ridge which limits. 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 South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
