. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. "WATSON : BOLOSAURUS AND REPTILE CLASSIFICATION 383 Ultimately the nasal forms part of the border of the nostril and has a contact with the narrow internarial process of the pre- maxilla. The orbit in actual specimens is generally a good deal shallower than its length but this seems to be due to crushing. At any rate the visibly undistorted and perfectly preserved pre- and postfrontals of Nothodon almost accurately surround a semicircle. The uncrushed and perfectly preserved maxilla, lachrymal and anterior part o
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. "WATSON : BOLOSAURUS AND REPTILE CLASSIFICATION 383 Ultimately the nasal forms part of the border of the nostril and has a contact with the narrow internarial process of the pre- maxilla. The orbit in actual specimens is generally a good deal shallower than its length but this seems to be due to crushing. At any rate the visibly undistorted and perfectly preserved pre- and postfrontals of Nothodon almost accurately surround a semicircle. The uncrushed and perfectly preserved maxilla, lachrymal and anterior part of the jugal of 1743 also support a part of the circumference of a circular orbit, and 2443 — an. Fig. 23. Diadectes, right lateral aspect of skull, x %. Drawn from the same materials as Figure 22. Eeference letters as before with: , fenestra ovalis; Ju., jugal; Mx., maxilla. obviously uncrushed fragment — again retains about one third of a circular orbit, and I have thus represented the orbit as circu- lar in this paper. The lachrymal extends as a quite deep bone from the orbit to the nostril. The maxilla is shallow, its outer surface standing vertically, and the jugal passes outward and backward to form a considerable part of the temporal region which must now be 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. : The Museum
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