Callawayasaurus was a plesiosaur, a type of marine reptile. It was not a dinosaur, though it coexisted with many dinosaurs. Callawayasaurus lived during the Early Cretaceous.
All these Callawayasaurus pictures were collected from the internet. Enjoy and explore:
- S. P. Welles. 1962. A new species of elasmosaur from the Aptian of Colombia and a review of the Cretaceous plesiosaurs. University of California Publications in Geological Sciences 44(1):1-96