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. The first Callawayasaurus fossil was discovered in 1999.

Quick facts about Callawayasaurus:

  • Existed from Barremian Age to 122.46 million years ago
  • Lived in a marine habitat
  • Was a carnivore
  • Reproduced by live birth
  • 2 different specimens have been found by paleontologists

All the Callawayasaurus illustrations below were collected from the internet. Enjoy and explore:

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