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Due to extensive co-ossification the more dorsal portions of the occiput the bones are impossible to extricate from each other in the tomograms. Abbreviations: bocc, basioccipital; bspost, basipostsphenoid; op, opisthotic; pro l, left prootic; pro r, right prootic; ps+bspre, parasphenoid and basipresphenoid; socc supraoccipital.
