31. A British primitive's head tapers towards a fine muzzle, and contains a prominent frontal bone with a broad forehead. 32. An olfactory channel leads up to this depression and can be seen on the underside of the frontal bones . 33. In 1933 Wilhelm Freudenberg discovered a frontal bone fragment which too, could be associated to " Homo heidelbergensis ". 34. In the neurocranium these are the occipital bone, two temporal bones, two parietal bones, the ethmoid and frontal bones . 35. During development, many of these bony elements gradually fuse together into solid bone ( for example, the frontal bone ). 36. I discarded the contaminated fragment of frontal bone _ it could easily be replaced with a piece of plastic later. 37. The front of the ape skull is characterised by its sinuses, fusion of the frontal bone , and by post-orbital constriction. 38. They also have unusually positioned orbits, an unusually shaped cranium with the frontal bones elevated, and a retracted nasal incision. 39. The coronal suture is the fibrous joint that unites the frontal bone with the two parietal bones of the skull. 40. The finds include a jaw with several baby teeth, one permanent molar, a frontal bone and two tiny forearm bones.