from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An ornithischian herbivorous dinosaur of the genus Maiasaura of the late Cretaceous Period of North America, noted for remains of fossilized nests and juveniles suggesting that the adults cared for their young.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of the species of herbivorous duck-billed dinosaurs in the genus Maiasaura.


New Latin Māiasaura, good mother lizard, genus name : Greek maia, good mother; + New Latin saura, feminine of saurus, lizard (from Greek sauros).
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • The reason Grant was astonished was that he had a proprietary feeling about this animal: it was probably a maiasaur, from the late Cretaceous in Montana.

    Jurassic Park

  • In any case, the maiasaur now seemed to find these strange creatures climbing down the tree too upsetting.

    Jurassic Park


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