The Dakosaurus was a species of marine crocodile that was discovered in a rich fossil bed in Argentina. It lived during the Late Jurassic and the Early Cretaceous periods.

Wikipedia has a more detailed and comprehensive article on Dakosaurus

Video GamesEdit

Jurassic Park: BuilderEdit

see Dakosaurus/Builder

It appears in the game Jurassic Park: Builder,  where it is a limited creature in the Aquatic Park.

Jurassic World: The GameEdit

see Dakosaurus/JW: TG

It appears in the game Jurassic World: The Game as a super rare cave creature in the aquatic park. In all evoultions, it has a sail down its back, which is inaccurate.