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.

In many mammals, including humans, it fuses with the periotic bone and the auditory bulla to form the temporal bone.

[edit] References

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

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