| os incae | The upper part of the squama of the occipital bone, developed in membrane instead of in cartilage as is the rest of the occipital, and occasionally (especially in ancient Peruvian skulls) existing as a separate bone, separated from the remainder of the occipital by the sutura mendosa. Synonym: incarial bone, interparietal bone, os incae. (05 Mar 2000) |
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