What is Squamosal?

Information about Squamosal

The squamosal is a bone of the head of higher vertebrates. It is the principal component of the cheek region in the skull, lying below the temporal series and otic notch and bounded anteriorly by postorbital. Posteriorly, the squamosal articulates with the posterior elements of the palatal complex, namely the quadrate and pterygoid. The squamosal is bordered anteroventrally by the jugal and ventrally by the quadratojugal.

References

Roemer, A. S. 1956. Osteology of the Reptiles. University of Chicago Press. 772 pp.
Vertebrata
Cuvier, 1812

Classes and Clades

See below
Vertebrates are members of the subphylum Vertebrata (within the phylum Chordata), specifically, those chordates with backbones or spinal columns.
..... Read more.
The otic ganglion is a small, ovalshaped, flattened parasympathetic ganglion of a reddish-gray color, located immediately below the foramen ovale.

Location and relations


..... Read more.
Quadrate may refer to:
  • Quadrate bone
  • Quadrate (heraldry)

..... Read more.
Pterygoid (from the Greek for 'winglike') can refer to:
  • a plate near the Vomer bone
  • a muscle such as Lateral pterygoid muscle or Medial pterygoid muscle
  • a branch of the Mandibular nerve

..... Read more.
The jugal is a skull bone found in some reptiles, amphibians, and birds. It is connected to the quadratojugal and maxilla, as well as other bones, which may vary by species.
..... Read more.
The quadratojugal is a small jaw bone that is present in most amphibians, reptiles, and birds, but has been lost in mammals. It is connected to the jugal as well as other bones, though these may vary with species.
..... Read more.