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The brow ridges are often not well expressed in human females, as pictured above in a female skull, and are most easily seen in profile. The brow ridge, or supraorbital ridge known as superciliary arch in medicine, is a bony ridge located above the eye sockets of all primates and some other animals.
The term also refers to the underlying bone that is slightly depressed, and joins the two brow ridges. It is a cephalometric landmark that is just superior to the nasion . [ 1 ]
The supraorbital foramen is a small groove at superior and medial margin of the orbit in the frontal bone. It is part of the frontal bone of the skull. [2] It arches transversely below the superciliary arches and is the upper part of the brow ridge.
“Neanderthal skulls have huge brow ridges and lack chins, with a projecting midface that results in more prominent noses. ... Shanidar Z's skull was flattened and contained 200 bone fragments ...
Less neotenized skull than of a majority of modern humans [7] Low, elongated skull with flat lambdoid region; Broad cranial vault with "en bombe" parietal morphology; A flat basicranium [15] [16] [17] Supraorbital ridge, a prominent, trabecular (spongy) brow ridge; 1,500–1,740 cm 3 (92–106 cu in) cranial capacity (modern human: 1425 cm 3)
Like other archaic humans, the skull is low and long, with massively developed brow ridges, wide eye sockets, and a large mouth. The skull is the longest ever found from any human species. Like modern humans, the face is rather flat, but with a larger nose. The brain volume was 1,420 cc, within the range of modern humans and Neanderthals.
The skull usually has a pronounced brow ridge, a protruding jaw, and large teeth. The bones are extraordinarily thickened. East Asian H. erectus normally have much more robust skeletons and bigger brain volumes — averaging 1,000 cc (61 cu in), within the range of variation for modern humans, but that of H. e. georgicus was as low as 546 cc ...
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