Skull Comparison (image) Yale University Share Print E-Mail Caption The missing portions of the Titanoceratops frill, shown in the shaded areas in the illustration on the right, were reconstructed to look like a Pentaceratops skull (left). Credit Nicholas Longrich/Yale University Usage Restrictions With credit. 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.