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 and resided in South America. The first Callawayasaurus fossil was discovered in 1999.
All the Callawayasaurus illustrations below were collected from the internet. Enjoy and explore:
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Callawayasaurus was described by the following scientific paper(s):
- 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
