Morphological Comparison (IMAGE) Hokkaido University Caption Morphological comparison between the Liscomb Bonebed hadrosaurine (left fossils) and known Edmontosaurus (right fossils). The hadrosaurid possesses a short dorsolateral process of the laterosphenoid, one of the diagnostic characters of Edmontosaurus (A). Some features previously considered unique to Ugrunaaluk were also found in Edmontosaurus or appear only transiently during the growth. (B-D) Credit Ryuji Takasaki et al., PLoS ONE, May 6, 2020. Usage Restrictions This image is copyrighted and can be used for reporting this research work without obtaining a permission if credited as instructed. 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.