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A sagittal crest is a ridge of bone running lengthwise along the midline of the top of the skull (at the sagittal suture) of many mammalian and reptilian skulls, among others. The presence of this ridge of bone indicates that there are exceptionally strong jaw muscles. The sagittal crest serves primarily for attachment of the temporalis muscle, which is one of the main chewing muscles. Development of the sagittal crest is thought to be connected to the development of this muscle. A sagittal crest usually develops during the juvenile stage of an animal in conjunction with the growth of the temporalis muscle, as a result of convergence and gradual heightening of the temporal lines.[citation needed]
A sagittalcrest is a ridge of bone running lengthwise along the midline of the top of the skull (at the sagittal suture) of many mammalian and reptilian...
parietal bones where they meet along the sagittal suture, or on both bones. Sagittal keels differ from sagittalcrests, which are found in some earlier hominins...
that had dimensions like that of a chimpanzee, but with a prominent sagittalcrest like that of a gorilla. Ammann purchased a photograph from hunters of...
straight and unserrated conical teeth. Lengthwise atop the head ran a thin sagittalcrest, to which powerful neck muscles were likely anchored. The nostrils were...
tanystropheids, Trilophosaurus, and derived rhynchosaurs, have a blade-like sagittalcrest on the parietal bones at the rear part of the skull roof, between a...
non-human great apes have a larger sagittalcrest than females (particularly gorillas and orangutans), the crest may be influenced by sexual selection...
The fossil's characteristics include a robust build with a prominent sagittalcrest. Its distinct coloration is due to the high manganese content of the...
boisei (renamed and still debated as Paranthropus boisei), featured a sagittalcrest and large molars. These attributes suggested the species engaged in...
Paranthropus is characterised by robust skulls, with a prominent gorilla-like sagittalcrest along the midline—which suggest strong chewing muscles—and broad, herbivorous...
are larger than females, and have a thicker neck, and a protruding sagittalcrest. They mainly haul-out on sandy or rocky beaches, but they also frequent...
the region of the canines. The skull prominences, especially in the sagittalcrest and crista occipitalis, are very high and strong in old males, and often...
canine teeth, larger auditory bullae, a flatter cranium with a larger sagittalcrest, and larger nuchal lines. In 2014, a study was conducted on pre-20th...
non-human great apes have a larger sagittalcrest than females (particularly gorillas and orangutans), the crest may be influenced by sexual selection...
of this order have long snouts, a narrow braincase, and a prominent sagittalcrest. The dental formula is: 5.1.3.44.1.3.4 × 2 = 50 teeth. By mammalian...
fossae, depressions on either side of the top of the skull, form a low sagittalcrest along the middle of the top of the skull. The front rims of the fossae...
featuring large auditory bullae, a well-developed supraoccipital crest normal to the sagittalcrest, and a strong lower jaw. The caracal has a total of 30 teeth;...
erectus. The specimen was unusual for having a double temporal ridge (sagittalcrest), which almost meets at the top of the cranium, and a heavily thickened...
including fused parietal bones with a prominent sagittalcrest, which ran longitudinally along the sagittal suture and separated the two supratemporal fenestrae...
hind legs have only four. The skull is light and slender, elongated. Sagittalcrest not developed at all or weakly defined. Vulpes species have vertically...
sagittalcrest. The cranial roof is the narrowest just posterior to the parietal foramen, which is very nearly circular in shape. The temporal crests...
genus Ursus, the projections of the skull are weakly developed; the sagittalcrest is low and short, even in old specimens, and does not exceed more than...
skull all the way up to the medial line. There, it may be attached to a sagittalcrest, as can be seen in early hominins such as Paranthropus aethiopicus....
eyesight, but excellent hearing and sense of smell. It has a large sagittalcrest, a bone running along the middle of the skull that is necessary for...
lambdoidal ridge at the rear of the cranium and in some species, a sagittalcrest running from front to back. The bony orbits around the eye never form...