A postorbital process appears on the jugo-squamosal suture and is here called postorbital process of the zygoma.
There is, moreover, no bulla supporting the middle ear, and the tympanic membrane stretches between the squamosal in front and the anterior cornu of the hyoid behind.
The quadrate cartilage of the frog is superseded by the squamosal as the suspensorium of the lower jaw.
The squamosal immediately anterior to each tympanic bulla is flat instead of ventrally convex as in goldmani or ventrally concave as in leucoparia and frenata.
The squamosal anterior to each tympanic bulla is convex ventrally whereas it is concave ventrally in leucoparia as in frenata.
The amount of ventral convexity of the squamosal in front of each tympanic bulla appears not to be greater than in the other specimens.
In erminea the lesser inflation is real enough but at the same time there appears to be less inflation than actually exists, for the squamosal floor of the braincase is "pushed down.
Between the alisphenoid and the squamosal there is a clear demarcation posteriorly from a point directly lateral to the foramen ovale.
The small size of these 3 specimens and the fact that in each the anterior margin of the tympanic bulla is flush with the squamosal rather than protruded from the braincase, suggests that the three are females.
The skull has a hole in the right squamosal bone on the floor of the braincase, and lacks the hamular process of the left pterygoid.
The squamosal anterior to each bulla is convex ventrally in perotae but flat or concave ventrally in frenata.
The ventrally convex squamosal anterior to each tympanic bulla and the slight degree of projection from the cranium of the anterior margin of each tympanic bulla are intermediate in degree between the condition in M.
In these skulls the breadth across the squamosal processes is less than that across the zygomatic arches, although the two dimensions are almost equal in some examples of P.
Here the temporal fossa is bridged over by the junction of the post-frontal and squamosal processes (pf.
Zygomatic process, a process of the temporal or squamosal bone helping to form the zygomatic arch.
Defn: Of or pertaining to the squamosal bone; squamosal.
It is triangular, and stretches from the outer angle of the frontal bone at the back of the orbit to the squamosal behind, where it also meets the quadrate bone.
But the squamosal bone with which it always unites is in less close union with the brain case, and never covers the brain itself.
There is no evidence that the quadrate bone is free in any Ornithosaurs, as it is in all birds, while in Dimorphodon it unites by suture with the squamosal bone.
The superior arch always includes the squamosal bone, which is at the back of the single bar in mammals.
And between the hindermost and the squamosal there is an intervening bar of bone, unknown among mammalia, which moves upon the skull by a joint, just as the lower jaw moves upon it.
The broader, more rounded and less acutely pointed squamosal arm of the zygoma supposedly characteristic of ignavus is matched in certain specimens of griseus (for example, in No.
Juan Vinas, Costa Rica) and the character is variable among specimens referred to ignavus; the shape of the squamosal arm is of doubtful taxonomic worth in the present connection.
The squamosal bears an indistinct, gently curved ridge, passing upward and forward from the posteroventral corner of the bone and paralleling the articulation of the squamosal with the parietal.
For example, the effect of the forces created by the articulation of the jaw upon the skull was concentrated at the joint between the quadrate, quadratojugal, and squamosal bones.
For example, a ridge is present on the internal surface of the squamosal along its dorsal border.
Only one of these differences, the elongation of the posterodorsal squamosal fenestra, was the same as a difference noted above between topotypes of uligocola and modestus.
Tail relatively longer; skull wider across zygomatic arches than across mastoid processes of squamosal (reverse true in C.
The former has a wide but shallow floccular fossa on its inner side, and sends backwards a considerable "pars mastoidea," which appears on the outer surface of the skull between the post-tympanic process of the squamosal and the exoccipital.
Occasionally the width at the level of the quadratojugal and squamosal is the same, or the greatest width of skull may be ventrad between the quadrates, which are slightly flared laterally.
On each side of the skull, the calipers rest on the squamosal bone, not on the parietal bone.
Parietal breadth" is the breadth, across the braincase, taken approximately half way between the squamosal root of the zygoma and the external auditory meatus, where there is a lateral bulge in the squamosal bone.
The quadrate is elongated with a long anterior bar; the cavity of the squamosal for the reception of its head is inclined much more outwardly than in either of the other genera.
When the squamosal process is free instead of expanding at the tip, it is reduced to an extremely fine and pointed style, of variable length.
Dorsally, the squamosal meets the anterior half of the tabular and the lateral border of the supratemporal.
Near the anteroventral edge of the squamosal there is a small pit, probably related to a postorbital sensory pore in the skin.
The bones of the posterior part of the dermal roof are greatly reduced, and there is none behind the squamosal except the projecting tabular; there is no indication of quadratojugal, jugal, intertemporal or postparietal.
Reduction of bones at the back of the skull seems to have eliminated any dermal elements posterior to the squamosal, while enlargement of the orbit has removed most of the postorbital series, leaving the squamosal as the only cheekbone.
The frontal and squamosal nearly meet each other, and both form part of the rim of the orbit.
The squamosal of Acanthostega (Jarvik, 1952) is articulated under the tabular and reaches forward and down, much as if it were an opercular in reversed position.
The bone that we suppose to be the squamosal of H.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "squamosal" in a variety of sentences. We hope that you will now be able to make sentences using this word.
