Categories of variability in the thickness of human skull bones

Problems in standardization of the thickness of skull vault bones at certain strictly determined points are discussed. Race, ethnic, regional, and sex-associated variability of this criterion was studied on extensive material for many peoples of the world (1261 men, 549 women, and 570 men + women). The most significant differences are characteristic only for the male and female totalities. A table of categories of the skull bone thickness has been created, covering 5 intervals with the following incidence: 33% medium, 22% low and high (each), and 11% very low and very high (each). An expert example is offered.