Tylosaurus proriger was actually the proper creature in the evolutions winners episode of Dinosaur Revolution as identified here http://www.kriskelly3d.com/DR-breakdown/dinosaurrevolution.html
Its is the largest of the mosasaurs, reaching lengths of nearly 57 ft.
Facts
Parental Care
Tylosaurus probably was not been a caring parent, as seen in the episode. Tylosaurus lived alone and could harm an animal like archeleon.
Food
Tylosaurus ate nearly many of the marine animals in its way.
Tylosaurus attacking a shark