Mamenchisaurus

Mamenchisaurus is a of sauropod dinosaur that lived in the Late Jurassic Period in what is now China. It is best known for its remarkably long neck which made up half its total length.

More real-life information: Mamenchisaurus at Wikipedia.

Jurassic Park Series
Mamenchisaurus was only shown in a short scene in. It also appears in a couple of games. It ultimately replaces Apatosaurus from the second novel.

Movies
Two Mamenchisaurus are seen in, they are the only sauropods featured in this movie. However, Apatosaurus replaces Mamenchisaurus during the hunt scene in the script for the film and it is believed that the dinosaur skeletons near the Worker Village were Apatosaurus remains. It is believed based on concept art that juvenile sauropods such as Mamenchisaurus were going to be captured by Peter Ludlow in hopes of transferring it to Jurassic Park San Diego, but due to complications were forgotten.

Mamenchisaurus replaces Brachiosaurus on the western portion Isla Sorna. Their range possibly did not cover the eastern part of the island, which probably explains why Grant and the Kirbys didn't see them in. However, this idea is completely speculative. They were shown to hold their necks in a raised position, consistent with modern interpretation of Sauropoda. Another mistake is that they have a diplodocoid-like head, Mamenchisaurus actually had a round head similar to Camarasauroids this was to reference Apatosaurus in film, the concept art however shows the Mamenchisaurus with a shorter blunt head. They only had a brief cameo in The Lost World.

Jurassic Park inspired games
Mamenchisaurus is featured in the arcade game The Lost World: Jurassic Park. In appears in Stage 2 in the Site B Scrub. There is a herd of dinosaurs and you need to drive through without being trampled. First, it lifts its foot and you need to shoot certain spots so it doesn't crush you. You do it again and then the same with the tail, twice. That Mamenchisaurus walks away and

there is another one defecating. In order to pass, you need to shoot its poop. If you don't, it'll fling its feces directly at you. The screen will be covered in poop, you will lose a life and the screen will say 'Failed'. The car swerves into a pit of mud, or poop and you will need to fight off raptors.

Mamenchisaurus is nr. 058 of the Herbivore Threes that can be created in Jurassic Park III: Park Builder.

Exhibitions
In the exhibition The Dinosaurs of The Lost World and Jurassic Park the first full-scale Mamenchisaurus was shown.