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.


Maia Alpine


Maia Coastal


Maia Savannah


Maia Wetland


Maia Woodland


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

Palaeontology Edit

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 of Maiasaura's size, by 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 several ceratopsians such as Achelousarus, the armoured Edmontonia, several other hadrosaurs including Gryposaurus, Hypacrosaurus and Prosaurolophus, the small ornithopod Orodromeus, the small carnivorous theropods Bambiraptor and Troodon and two tyrannosaurs; Daspletosaurus and Gorgosaurus.


  • 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.


References Edit

Further readingEdit

External linksEdit

Smallwikipedialogo Maiasaura on Wikipedia