11. They are positioned behind the nasal bones and in front of the frontal bones . 12. The frontal bone , situated behind the prefrontals, is very wide. 13. The "'zygomatic process of the frontal bone "'extends from the frontal bone laterally and inferiorly. 14. In 2011, an exceptionally well-preserved braincase was found, only missing the frontal bones and orbitosphenoid. 15. The frontal bones are concave between the orbital regions. 16. The volume is increased by placing the frontal bones and the supraorbital rim further forward. 17. The frontal bones form a rectangular bar that separates the eye sockets down the middle. 18. The "'zygomatic process of the frontal bone "'extends from the frontal bone laterally and inferiorly. 19. Porotic hyperostosis is characterized by porous lesions on the parietal, occipital, and sometimes frontal bones . 20. It is darker than its more northern cousins, and has a highly arched frontal bone .
