This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Edmontosaurus regalis skull and jaws Near Drumheller Alberta Canada Late Cretaceous Royal Ontario Museum DSC. Photograph of ROM skull of the hadrosaurine hadrosaur Edmontosaurus regalis LAMBECf fig in Nicols Campione David Evans Cranial Growth and Variation in Edmontosaurs Dinosauria Hadrosauridae Implications for Latest Cretaceous