Shastasaurus was an ichthyosaur, a type of marine reptile. Ichthyosaurs were not dinosaurs, despite living during the same era. Shastasaurus lived during the Late Triassic, with fossils found in North America.

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

Shastasaurus was described by the following scientific paper(s):
  • E. L. Nicholls and M. Manabe. 2004. Giant ichthyosaurs of the Triassic - a new species of Shonisaurus from the Pardonet Formation (Norian: Late Triassic) of British Columbia. Journal of Vertebrate Paleontology 24(4):838-849
  • E. L. Nicholls. 1999. A reexamination of Thalattosaurus and Nectosaurus and the relationships of the Thalattosauria (Reptilia: Diapsida). PaleoBios 19(1):1-29
  • J. C. Merriam. 1895. On some Reptilian Remains from the Triassic of Northern California. American Journal of Science 50(295):55