Supraorbital development in chimpanzees, macaques and baboons.

Macroscopic and histological parameters are considered in an analysis of bone formation in the supraorbital region of macaques (Macaca mulatta), baboons (Papio cynocephalus anubis), and chimpanzees (Pan troglodytes verus). Results indicate that post-natal osteogenesis of the supraorbital segment of the frontal bone in these primates occurs as a cyclic phenomenon that coincides wth dental eruption patterns.