Alamosaurus was an American Titanosaur. It was found in Texas. It was named after Ojo Alamo, a formation in Texas, where it was first discovered. It was the last sauropod known from North America, and may well have been prey to Tyrannosaurus. It was one of the last Sauropods. The name Alamosaurus means "Lizard from the Alamo". It was about 56–70 feet long and weighed about 30 tons.

Wikipedia has a more detailed and comprehensive article on Alamosaurus


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A skeleton of Alamosaurus once stood in the now destroyed Visitor Center in the original Jurassic Park.[1] [2] It, along with the neighboring Tyrannosaurus rex skeleton, was destroyed in the battle between the T. rex of Isla Nublar, and the Velociraptor pack, led by The Big One.[3]

Jurassic Park (SEGA CD Game)

Alamosaurus appears in the game as the sauropod skeleton mounted in the Visitor Center, like in the Jurassic Park film.

Jurassic World Evolution

Alamosaurus is mentioned in the database entry for Tyrannosaurus rex, where it is incorrectly stated to be a carnivore. It is likely that this is a mistaken reference to "Alamotyrannus," an undescribed tyrannosaur species that may actually be a second species of Tyrannosaurus.

Behind the scenes

When the Visitor Center appears in other Jurassic Park media, Alamosaurus is often replaced by diplodocid sauropods such as Apatosaurus (LEGO Jurassic World) or Brontosaurus (Jurassic Park Discovery Center).


  1. Jurassic World Universe - Jurassic Park Alternate Ending Storyboard. Retrieved from
  2. Jurassic Park Website - Notes. Retrieved from
  3. Jurassic Park


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