. 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. TEICLEIDUS SEELEYI. lol for the reception of the pituitary body {). The postero-external angles of the posterior portion of the bone are obliquely truncated by small facets [pt-f.^) for union with the anterior ends of the basisphenoid processes of the pterygoids. The upper anterior angles of the body of the bone bear a pair of facets (/., in text-fig. 73, A) looking upwards and a little outwards, which, judging from co
. 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. TEICLEIDUS SEELEYI. lol for the reception of the pituitary body {). The postero-external angles of the posterior portion of the bone are obliquely truncated by small facets [pt-f.^) for union with the anterior ends of the basisphenoid processes of the pterygoids. The upper anterior angles of the body of the bone bear a pair of facets (/., in text-fig. 73, A) looking upwards and a little outwards, which, judging from comparisons with some recent forms, united with the lower end of the anterior prolongation of the prootics. The posterior surface of the pituitary fossa is perforated on either side by a large foramen for the internal carotids {); from the outer anterior border of each of these openings a sharp crest runs outwards and forwards on the cranial surface, Text-fijr. Basioccipital, basisphenoid, and parasplienoid of Trideidus seeleijl: A, from above; B, from right side. ' (E. 3539, nat. size.) , basisphenoid; , surface for uiiiou with the exocoipital;/., in fig. A facet for (?) lower end of prootic, in fig. B facet for pterygoid; , internal carotid foramen; , occipital condyle; pas., paraspheuoid ; , pituitary fossa; , facet for posterior ramus of pterygoid ; ^, fact-t for process of pterygoid; ^, facet for inner border of palatal ramus of pterygoid; , lower cylindrical processes of basisphenoid. apparently defining the outer side of the pituitary fossa. External to this ridge and in front of the carotid foramen the sides of the bone are produced into short wing-like processes, terminating on facets (/., in text-fig. 73, B), looking outwards and forwards, probably for union with the pterygoids, though this is not certain. The basisphenoid terminates antei'iorly in two short vertically-compressed processes [) ending in
Size: 1706px × 1465px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectreptile, bookyear1910
