Cryptoclidus was a plesiosaur, a type of marine reptile. It was not a dinosaur, though it coexisted with many dinosaurs. Cryptoclidus lived during the Mid Jurassic. The first Cryptoclidus fossil was discovered in 1871.

Quick facts about Cryptoclidus:

  • Existed from 166.1 million years ago to 145 million years ago
  • Lived in a marine environment
  • Was a carnivore
  • Reproduced by live birth
  • 17 different specimens have been found by paleontologists

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

Cryptoclidus was described by the following scientific paper(s):
  • G. von Arthaber. 1906. Beiträge zur Kenntnis der Organisation und der Anpassungserscheinungen des genus Metriorhynchus. Beiträge zur Paläontologie und Geologie Österreich-Ungarns und des Orients 19(4):287-320
  • J. Phillips. 1871. Geology of Oxford and the Valley of the Thames. Clarendon Press, Oxford
  • D. M. Martill. 1986. The stratigraphic distribution and preservation of fossil vertebrates in the Oxford Clay of England. Mercian Geologist 10(3):161-186