In the neurocranium these are the occipital bone, two temporal bones, two parietal bones, the ethmoid and frontal bones.
12.
The neurocranium had a narrow suborbital shelf, a broad supraorbital shelf, a short otico-occipital division, large orbits,
13.
Some textbooks make a strict distinction between bones of the neurocranium and viscerocranium, based on the embryological origins of the bones.
14.
Below the neurocranium is a complex of openings ( foramina ) and bones, including the foramen magnum which houses the neural spine.
15.
Circumnarial skin folds are present, but the rostral process of the neurocranium ( braincase ) is absent, although a precerebral fossa is present.
16.
They proposed ( as first articulated by Biegert in 1957 ) that during infancy the neurocranium extensively overlaps the orbit, a condition that prohibits brow ridge development.
17.
Laterally, they are enclosed by an opercular fold and are found in the space beneath the lateral part of the head shield, extending medially underneath the neurocranium.
18.
This can be further complicated with a possible Arnold-Chiari malformation, which can partially obstruct the flow of cerebro-spinal fluid from the neurocranium to the spinal cord.
19.
These bones were associated with three whole eggs ( USNM 336564 ) and an avian neurocranium ( USNM 361415 ) which may belong to " paracathartes " or to a possible phorusrhacid.
20.
Weindenreich ( 1941 ) and Biegert ( 1957, 1963 ) argued that the supraorbital region can best be understood as a product of the orientation of its two components, the face and the neurocranium.
