Cranial sutures in relation to significant regions of the brain.
The “sutures” of the skull are actually fibrous joints. While the age of a deceased young child can be determined by the ossification of the metaphysis and fontanelles, the age of adults can be determined (within a somewhat larger age range and after racial features have been determined) by the surface and interior texture of the skull, and the complete fusion of the sutures, to the point of near-obliteration of any signs of their existence.
Applied Surgical Anatomy, Regionally Presented. Dr. George Woosley, 1902.