Plesiosaur Pond

The Plesiosaur Pond was an attraction originally meant to appear in but was cut from the final film. It was to be a large pool like the Jurassic World Lagoon inhabitated by Plesiosaurus and several unidentified species of ichthyosaurs. Visitors to Jurassic World would be able to visit the attraction by boarding a submarine attached to a monorail.

Behind the scenes
Despite the attraction being cut from the film, Plesiosaurus is one of the animals that could be viewed on the Holoscape of the Innovation Center, possibly meaning it could have very well lived in Jurassic World.