Mesadactylus was a pterosaur, a type of flying reptile. It was not a dinosaur, though it lived during the same period. Mesadactylus lived during the Late Jurassic and resided in North America.
All these Mesadactylus pictures were collected from the internet. Enjoy and explore:
- J. A. Jensen and J. H. Ostrom. 1977. A second Jurassic pterosaur from North America. Journal of Paleontology 51(4):867-870