Plesiotylosaurus is a genus of mosasaur from the Maastrichtian stage of the Late Cretaceous of North America.

ReferencesEdit

• Dinosaurs and Other Mesozoic Reptiles of California by Richard P. Hilton, Kevin Padian, and Ken Kirkland (page 30)
• Ancient Marine Reptiles by Jack M. Callaway and Elizabeth L. Nicholls (page 286)
• The Osteology of the Reptiles by Alfred Sherwood Romer (page 562)