. Carnegie Institution of Washington publication. 78 PERMO-CARBONIFEROUS VERTEBRATES FROM NEW MEXICO. vertically. Among the many pieces of spine recovered of the posterior vertebras, but few of which could be connected with their vertebrae, the lateral tubercles are more numerous and rather more prominent, but none could have been more than three-quarters of an inch in length.* A few of the intercentra are preserved with the vertebrEE, one of which is figured, as seen from below. Large quantities of broken ribs were secured, but only one rib could be restored completely or nearly completely; i
. Carnegie Institution of Washington publication. 78 PERMO-CARBONIFEROUS VERTEBRATES FROM NEW MEXICO. vertically. Among the many pieces of spine recovered of the posterior vertebras, but few of which could be connected with their vertebrae, the lateral tubercles are more numerous and rather more prominent, but none could have been more than three-quarters of an inch in length.* A few of the intercentra are preserved with the vertebrEE, one of which is figured, as seen from below. Large quantities of broken ribs were secured, but only one rib could be restored completely or nearly completely; it belongs with either the eighth or ninth vertebra. Its shape and size will be sufficiently well understood from the figure (fig. 48 b). The rib seems remarkably heavy for a skull of the size of the present one. Pectoral girdle: Both scapute are preserved, imperfectly. That of the right side is more complete on the lower part, that of the left on the upper. The latter has a nearly complete cleithrum in close articulation with it. The right clavicle. Fig 49 âEdaphosaurus novomexicanus. Pectoral girdle, X %â c, cleithrum; cl, clavicle; sc, scapula. was found lying across the left scapula, and is complete. No indications of an interclavicle have been observed in the material. The right scapula is figured, with some slight additions, as also the cleithrum, reversed from the left side (fig. 49). The cleithrum is larger than has been observed in other pelycosaurs. It is a rather stout cylindrical bone, lying in close articulation along the front edge of the scapula above, thinned below for union with the clavicle, but not dilated at either extrem- ity. The scapula is peculiar in its short, narrow, rather stout blade, and its great antero-posterior extent below. Both scapulas are more or less crushed, and were doubtless less flat in life than shown in the figure. The large supraglenoid foramen pierces the bone back of the ridge leading to the preglenoid facet, not the outer face, as
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