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

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

Tylosaurus was described by the following scientific paper(s):
  • A. L. Flores. 2013. Occurence of a tylosaurine mosasaur (Mosasauridae; Russellosaurina) from the Turonian of Chihuahua State, Mexico. Boletin de la Sociedad Geologica Mexicana 65(1):99-107
  • C Neumann, J.W.M Jagt, and RWJM van der Ham. 2002. Rare Campanian echinoids from the Höver and Misburg (Hannover area, Lower Saxony, Germany). Mitteilungen des Museums für Naturkunde Berlin, Geowissenschaftliche Reihe 5:121-139
  • D. A. Russell. 1964. The Skull of American Mosasaurs.. New York: Columbia University.