Russellosaurus was a mosasaur, a type of marine reptile related to lizards and snakes. It was not a dinosaur. Russellosaurus lived during the Late Cretaceous, with fossils found in North America.

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

Russellosaurus was described by the following scientific paper(s):
  • M. J. Polcyn and G. L. Bell. 2005. Russellosaurus coheni n. gen., n. sp., a 92 million-year-old mosasaur from Texas (USA), and the definition of the parafamily Russellosaurina. Netherlands Journal of Geosciences — Geologie en Mijnbouw 84(3):321-333