Archive image from page 85 of A descriptive catalogue of the. A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London .. descriptivecatal02brit Year: 1910 56 MAEINE EEPTILES OF THE OXFOED CLAY. strongly convex anterior and internal border; the thin posterior edge is concave and forms the anterior border of the coraco-scapular foramen, if that opening was really enclosed internally by the meeting of the scapula and coracoid. The ventral rami of the scapttlse, in any case, may have met each other in the mid
Archive image from page 85 of A descriptive catalogue of the. A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London .. descriptivecatal02brit Year: 1910 56 MAEINE EEPTILES OF THE OXFOED CLAY. strongly convex anterior and internal border; the thin posterior edge is concave and forms the anterior border of the coraco-scapular foramen, if that opening was really enclosed internally by the meeting of the scapula and coracoid. The ventral rami of the scapttlse, in any case, may have met each other in the middle line, but seem to have been separated by the triangular interclavicle (). This bone (text-fig. 22) is gently convex below and concave above from side to side, and very slightly convex from before backwards on the ventral surface. The anterior border (), which has a thin smooth edge, is concave from side to side. The lateral border (Lb.) is at first a little concave, then posteriorly convex, the bone terminating posteriorly in a stout, blunt, asymmetrically placed process (). On the visceral surface the lateral borders are bevelled away and roughened, evidently for union with some other element, and this Interclavicle of Peloneustes pliilarchus: A, dorsal (or visceral) surface; B, ventral surface. (E. 2442, | nat. size.) , front border; , lateral border ; , posterior process. bevelled surface extends the whole length of the lateral border. The inner edge of the ventral ramus of the scapula cannot well have united with the whole border, and so it seems possible that some lateral elements (clavicles) were present, though they have never yet been found. In any case, there seems little doubt but that this triangular bone must be regarded as the interclavicle, and it has been so described and figured by Seeley . Lydekker f, on the other hand, regarded it as an omosternum. Seeley, 'Shoulder-girdle and Clavicular Arch in Sauropterygia,' Proc. Eoy. Soc
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Keywords: 1900, 1910, andrews_charles_william_1866_1924, archive, book, bookauthor, bookcentury, bookdecade, bookpublisher, booksubject, bookyear, british_museum_natural_history_dept_of_geology, drawing, historical, history, illustration, image, london_printed_by_order_of_the_trustees, page, picture, print, reference, reptiles_fossil, vintage
