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Okay, fun fact. This Maiasaura was the first dinosaur in space. It was on Spacelab in 1985. How do I know that? It's in the travel brochure. They like to butt heads, too. We left that out.

- Cabot Finch

Maiasaura is a genus of hadrosaurid dinosaur that originated from Late Cretaceous North America. Maiasaura is first unlocked by the Hammond Foundation during island operations on Isla Tacaño.


The base genome for Maiasaura is brown with white stripes running along its back, a white underbelly and a white head.


Maiasaura lived in Montana in the Late Cretaceous period. As a member of the saurolophinae branch of hadrosaurs, it lacked the complex crest of lambeosaurines such as Tsintaosaurus, but had a small spiky crest above the eyes.

The first specimens of Maiasaura was an enormous nesting colony discovered between 1978 and 1979 in an areal known as Egg Mountain in the Two Medicine Formation. Over two hundred skeletons were found in various stages of growth; hatchlings, juveniles, young adults and fully grown adults. Each nest had around 30 to 40 eggs in a spiral pattern and covered with rotting vegetation to keep warm. The young grew up at a remarkable rate for an animal the size of Maiasaura, for by the time they reached one year old, they could leave the nest, suggesting they were warm blooded. However, despite the fact they had left the nest, they were still tended to by the adults. Because of these qualities, it dispelled the old notion that dinosaurs didn't care for their young and which gave the Maiasaura its name; meaning 'Good Mother Lizard'.

Maiasaura lived alongside of other dinosaurs such as the ceratopsians Achelousarus and Einiosaurus, the armoured Nodosauridae Edmontonia, the hadrosaurs including Gryposaurus, Hypacrosaurus and Prosaurolophus, the small ornithopod Orodromeus, the small carnivorous Dromaeosauridae Bambiraptor and Troodontidae Troodon, as well as the two Tyrannosauridae Daspletosaurus and Gorgosaurus.


Alpineicon ALPINE Coastalicon COASTAL Savannahicon SAVANNAH Wetlandicon WETLAND Woodlandicon WOODLAND


  • Maiasaurus was first shown in the Spinosaurus species profile on May 11, 2018.
  • Maiasaura was intended to be in Jurassic Park: Operation Genesis, but was ultimately scrapped due to time constraints.
  • Maiasaura is the first dinosaur that is exclusive to the Jurassic Park novel canon to be featured in the game.
  • Maiasaura appeared in the Inkwell Jurassic Park III Trading Cards alongside Muttaburrasaurus, possibly hinting at them being cloned by InGen.
  • Despite Cabot Finch's claim that Maiasaura like to "butt heads", this behavior is absent from the game.



Further reading

External links

Smallwikipedialogo Maiasaura on Wikipedia

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