human_reference_atlas part of Homo sapiens occipital bone http://upload.wikimedia.org/wikipedia/commons/2/27/Gray194.png uberon GAID:227 UMLS:C0028784 AS UBERON:0001676 occipital bone EMAPA:25112 fusion of basi-, exo- and supra-occipitals (and maybe tabular) NCIT:C12757 os occipitale SCTID:181796003 occipital complex MESH:D009777 The bone at the lower, posterior part of the skull. MA:0001468 Wikipedia:Occipital_bone occipital bone FMA:52735 occipital squama formed from the sclerotome of the occipital somites. It is not present in living or fossil agnathans or cartilaginous fishes, but appears to have arisen in parallel in many bony fishes. Incorporation of the occipital ver- tebrae into the skull was associated with the annexation of the upper part of the spinal cord into the brain, together with the first 2 spinal nerves as cranial nerves XI and XII neurocranium flat bone