Ancient Hominid Reconstruction (IMAGE) University of Adelaide Caption Cephalometric landmarks -- measurements of the skull -- are critical for accurate measurements of facial soft tissue such as in these numerous landmarks positioned on the skull of a chimpanzee. Credit Ryan M. Campbell Usage Restrictions Only for use with this story. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.