. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. WATSON : BOLOSAURUS AND REyTILB CLASSIFICATION 309 the very slightly hollowed palatal surface. The outer half of this surface is occupied by the single row of teeth, the remainder forming a smooth surface, directly continued onto the palate bones. Posteriorly the palatal surface narrows to a point. The thickened lower part of the maxilla has a horizontal upper surface which passes abruptly into the inner surface of the dorsal lamina, but the inner surface of this part of the bone is diversi- fied. Anteriorly it has a
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. WATSON : BOLOSAURUS AND REyTILB CLASSIFICATION 309 the very slightly hollowed palatal surface. The outer half of this surface is occupied by the single row of teeth, the remainder forming a smooth surface, directly continued onto the palate bones. Posteriorly the palatal surface narrows to a point. The thickened lower part of the maxilla has a horizontal upper surface which passes abruptly into the inner surface of the dorsal lamina, but the inner surface of this part of the bone is diversi- fied. Anteriorly it has a flat articulation with the premaxilla. Behind this for a distance of some three teeth the bone has a rounded smooth margin to the palatal nostril. The inner surface, here at an angle of some 45° to the vertical, has a wide scarfed attachment surface for the palatine bone. Be- hind this a nearly vertical surface is attached to the anterior end. B. 0 Fig. 2. Bolosauriis striatus, Cope. Reconstructed as in Fig. 1. x 2. Dorsal aspect. Reference letters as before, with Fr., 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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