Pliosaurus was a plesiosaur, a type of marine reptile. It was not a dinosaur, though it coexisted with many dinosaurs.

All these Pliosaurus pictures were collected from the internet. Enjoy and explore:

Pliosaurus was described by the following scientific paper(s):
  • K. Lambrecht. 1929. Neogaeornis wetzeli, n. g., n. s., der erste Kreidevogel der südlichen Hemisphäre [Neogaeornis wetzeli n. g. n. sp. the first Cretaceous bird from the Southern Hemisphere]. Paläontologische Zeitschrift 11:121-128
  • H. G. Seeley. 1874. On the base of a large lacertian cranium from the Potton Sands, presumably dinosaurian. Quarterly Journal of the Geological Society of London 30:690-692
  • H. G. Seeley. 1875. On the femur of Cryptosaurus eumerus, Seeley, a dinosaur from the Oxford Clay of Great Gransden. Quarterly Journal of the Geological Society of London 319:149-151