Tristychius Reconstruction (video) University of Chicago Share Print E-Mail Loading video... Caption UChicago scientists used CT scanning technology to capture images of the Tristychius arcuatus fossil while it was still encased in an ironstone rock nodule. The researchers then used 3D modeling software to reconstruct the skull and jaws to understand how it moved and fit together. Credit Kristen Tietjen, UChicago Usage Restrictions None Share Print E-Mail 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.