. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 240 Annals of the South African Museum. Parasphenoid.—As in Capitosaurus sp., Watson, the parasphenoid ends in a free margin at the back of the skull below the condyles. In front of this the bone expands rapidly so that it forms a broad plate between the pterygoids. This plate is vaulted in the middle. The outer posterior corner of the bone just reaches the free edge of the skull. There is a slight ridge running across the lower surface of the bone at the level of the front of the exoccipital. Basioc
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 240 Annals of the South African Museum. Parasphenoid.—As in Capitosaurus sp., Watson, the parasphenoid ends in a free margin at the back of the skull below the condyles. In front of this the bone expands rapidly so that it forms a broad plate between the pterygoids. This plate is vaulted in the middle. The outer posterior corner of the bone just reaches the free edge of the skull. There is a slight ridge running across the lower surface of the bone at the level of the front of the exoccipital. Basioccipital.—There is apparently no basioccipital preserved. The upper surface of the parasphenoid is concave, as in Laccosaurus ; but. Text-fig. 9.—Capitosaurus africanus. Broom. Section of skull No. 3008, showing relations of pterygoid, pro-otic, and parasphenoid. the whole of the space between it and the top of the skull is, as far as the fractures show, filled with matrix. One longitudinal fracture .shows the ragged anterior end of an exoccipital lying above the parasphenoid ; a transverse fracture at the transverse ridge shows the parasphenoid with a lateral flange passing upwards to meet the pro-otic. Exoccipital.—As in Capitosaurus sp., the bone forms the lower border of the bony fenestra ovalis. Seen from without, the body of the bone is perforated at the side by a large rounded foramen—the opening for the Xth nerve. Posterior to this is a much smaller opening, the exit for the Xllth nerve ; and below these is a small venous foramen. The upper anterior portion of the bone, which meets the pro-otic above the fenestra ovalis, seems to be of somewhat different texture from the main mass and is probably 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 South African Museum. Cape Town :
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
