The type of suture represented by sagittal suture of the cranial vault is
The joints in the skull are mostly sutures.
Various types of sutures in the skull are,

Plane suture - Eg. Internasal suture, mid palatal suture.
Serrated suture - Eg. Sagittal and coronal suture (interparietal suture).
Denticulate suture - Tooth like projections. Eg. Lambdoid suture.
Squamous suture - Eg. Parieto-temporal suture.
Serrate
Denticulate
Squamous
Plane