Aristonectes was a plesiosaur, a type of marine reptile. It was not a dinosaur, though it coexisted with many dinosaurs. Aristonectes lived during the Late Cretaceous and resided in South America. The first Aristonectes fossil was discovered in 1941.

Quick facts about Aristonectes:

  • Existed from Campanian Age to 66 million years ago
  • Lived in a marine environment
  • Was a carnivore
  • Reproduced by live birth
  • 7 different specimens have been found by paleontologists

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

Aristonectes was described by the following scientific paper(s):
  • J. P. O'Gorman and Z. Gasparini. 2013. Postcranial morphology of Aristonectes (Plesiosauria, Elasmosauridae) from the Upper Cretaceous of Patagonia and Antarctica. Antarctic Science 25(1):71-82
  • M. E. Suarez and H. Cappetta. 2004. Sclerorhynchid teeth (Neoselachii, Sclerorhynchidae) from the Late Cretaceous of the Quiriquina Formatino, central Chile. Revista Geologica de Chile 31(1):89-103
  • S. Chatterjee and B. J. Small. 1989. New plesiosaurs from the Upper Cretaceous of Antarctica. Origin and Evolution of the Antarctic Biota, Geological Society Special Publication 47:197-215