99% sex difference can be done by all features of pelvic bones except:

D i.e. None - According to Krogman, the degree of accuracy of sex - In the Pelvis the traits seen are - Preauricular sulcus, determination for different bone is Greater sciatic notch, Subpubic angle, pelvic brim or inlet, Entire skeleton - 100% Body & ramus of pubiQ. Pelvis alone - 95%Q - Ilium, Acetabulam, Iileopectineal line, Ischeal tuberosity, Skull alone - 90% Ischeopubic rami, Symphysis, Pelvic cavity, outlet, SI Joint, Skull & pelvis - 98% Sacrum, Coccyx, Ischepubic index & Sciatic notch index Long bones alone - 80% are also seen.