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

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

Eretmosaurus was described by the following scientific paper(s):
  • R. Owen. 1865. A monograph of the fossil Reptilia of the Liassic formations. Part I, Sauropterygia. Palaeontographical Soceity Monographs 17(75):1-40