<prompt> Premature closure of coronal, sagittal, and lambdoid sutures results in NOT RELATED-SURGERYOxycephalyTurricephalyPlagiocephalyTrigonocephaly  <response>: Oxycephaly results due to premature closure of coronal, sagittal, and lambdoid suture. The most common type of primary craniosynostosis is simple sagittal synostosis. 