Lambdoid suture

Last revised by Craig Hacking on 12 Feb 2023

The lambdoid suture is the junction between the superior border of the squamous occipital bone and the posterior borders of the right and left parietal bones. It normally fuses at approximately 26 years of age.

At the junction of sagittal and lambdoid suture, the posterior fontanelle is located which is open at birth and usually fuses at around 2-3 months after birth. The junction of the sagittal and lambdoid sutures after fontanelle closure is known as the lambda.

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

  • Figure 1: adult skull
    Drag here to reorder.
  • Figure 2: sagittal infant skull
    Drag here to reorder.
  • Figure 3: adult skull (posterior view)
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.