Left: isometric view of the female anterior cranial fossa and inner frontal region landmarks. This view is taken from the right posterior region of the skull, looking toward the left anterior view of the skull. Right: top view of the female anterior cranial fossa and inner frontal region facing inferiorly toward the base of the skull demonstrating the change in shape from 20 (blue) to 100 (red) years. L, left; R, right; A, anterior; P, posterior.