. Breviora. Figure 3. Proximal ends of dorsal ribs of A, Masseto^natliiis pascuali (X 2), and of B and C, Cynognatlms sp. (X V2) in anterior view. Ab- breviations: c, crest on anterior aspect of shaft (see text for details). posterior process also bears a facet. The rib as a whole projects laterad from the vertebral column and appears not to have had any ventral curvature. In lateral view (Fig. 2B) the shaft and point of bifurcation are at approximately the same level, but the anterior and posterior processes incline somewhat ventrally. A low, bony ridge (b. Figs. 2A, 4B) runs obliquely onto t
. Breviora. Figure 3. Proximal ends of dorsal ribs of A, Masseto^natliiis pascuali (X 2), and of B and C, Cynognatlms sp. (X V2) in anterior view. Ab- breviations: c, crest on anterior aspect of shaft (see text for details). posterior process also bears a facet. The rib as a whole projects laterad from the vertebral column and appears not to have had any ventral curvature. In lateral view (Fig. 2B) the shaft and point of bifurcation are at approximately the same level, but the anterior and posterior processes incline somewhat ventrally. A low, bony ridge (b. Figs. 2A, 4B) runs obliquely onto the posterior process from the point of bifurcation where it is most prominent. This feature is comparable to a similar ridge on the ribs of Cynognatlms sp. (b. Fig. 4A) and other cynodonts; in the fourteenth thoracic. 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. , Museum of Comparative Zoology, Harvard University
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