. A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London ... Reptiles, Fossil. CEYPTOCLEIDUS OXONIENSIS. 179 their anterior region, massive bones. Their form will be best understood by reference to the figures. The anterior median prolongations of the coracoids towards the scapulae are almost semicircular in section, the diameter of the semicircle being represented by the symphysial face. This portion of the bones forms a marked projection below the rest of the ventral face (PI. X. figs. 1 ^, 1 c). Behind
. A descriptive catalogue of the marine reptiles of the Oxford clay. Based on the Leeds Collection in the British Museum (Natural History), London ... Reptiles, Fossil. CEYPTOCLEIDUS OXONIENSIS. 179 their anterior region, massive bones. Their form will be best understood by reference to the figures. The anterior median prolongations of the coracoids towards the scapulae are almost semicircular in section, the diameter of the semicircle being represented by the symphysial face. This portion of the bones forms a marked projection below the rest of the ventral face (PI. X. figs. 1 ^, 1 c). Behind the scapular processes the concave anterior border of each bone is thin and sharp, forming the hinder boundary of Text-fig. Adult shoulder-girdle of (?) Cryptocleidus oxoniensis, showing the rudimentary interclavicle : A, from above ; B, clavicles and interclavicle from below (outer surface). (E. 3538, about i nat. size.) cl., clavicle ; cor., coracoid ; gl., glenoid cavity ; , interclavicle ; sc, scapula. the coraco-scapular foramen. External to this the bone is greatly thickened and bears the facets for the scapula and the glenoid surface, these making an angle of about 135" with one another : the scapular facet is triangular and is greatly roughened by pits and ridges ; the glenoid facet is half an oval, the short diameter being the line of junction 2 A 2. 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 British Museum (Natural History). Dept. of Geology; Andrews, Charles William, 1866-1924. London, Printed by order of the Trustees
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectreptile, bookyear1910
