Sex can be determined by all except -
Pelvic brim is more spacious and circular in females, coccyx is more movable and preauricular sulcus is more frequent and broad and deep in females. In males, pelvic brim is hea shaped, preauricular sulcus is narrow and coccyx is less movable. ref : Dr. Narayana Reddys Synopsis of Forensic Medicine & Toxicology 27th edition pg. 32.
Preauricular sulcus
Innominate bone
Pelvic brim
Coccyx
Identification