. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. BRAINCASE, BASICRANIAL AXIS, MEDIAN SEPTUM IN THE DINOCEPHALIA 221. PT POr »c dc Fig. i8. Ketotocephalus moloch 11294 x i- The sagittal view of the braincase drawn directly from a sagittal section and the left half of the cleaned endocranial cavity. Inner view of braincase (Fig. 18) After cutting through the skull in the sagittal plane I have removed the matrix filling the left half of the endocranial cavity. The floor of the braincase is formed by the exoccipital, basioccipital, prootic, basi
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. BRAINCASE, BASICRANIAL AXIS, MEDIAN SEPTUM IN THE DINOCEPHALIA 221. PT POr »c dc Fig. i8. Ketotocephalus moloch 11294 x i- The sagittal view of the braincase drawn directly from a sagittal section and the left half of the cleaned endocranial cavity. Inner view of braincase (Fig. 18) After cutting through the skull in the sagittal plane I have removed the matrix filling the left half of the endocranial cavity. The floor of the braincase is formed by the exoccipital, basioccipital, prootic, basisphenoid, presphenoid, orbitosphenoid and septosphenoid. The lateral wall is formed by the exoccipital, supraoccipital, opisthotic, prootic, orbitosphenoid and septosphenoid. The parietal organ lies wholly in the parietals. The roof is formed by the supraoccipital, orbitosphenoid and septosphe- noid. The hypoglossal foramen through the exoccipital, the jugular foramen bounded by the exoccipital and opisthotic, the internal auditory meatus into the opisthotic, the facialis foramen through the prootic and the optic foramen through the orbitosphenoid all lie low down, mostly at floor level. The trigeminal fenestra bounded by the prootic and supraoccipital lies well up in the side wall and the trochlear foramen bounded by the supraoccipital, parietal and orbito- sphenoid lies near the root of the parietal organ. The dorsum sellae has its lower half formed by the basisphenoid and its upper half by the prootic. The frons sellae is formed by the presphenoid and septosphenoid. The parietal tube is 108 mm high, with maximum diameters 30 x 60 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 : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
