Genus: Mauisaurus HECTOR, 1874
Etymology: In reference to Maui, Moari Demi-god and hero, Greek, sauros, “lizard”: Maui lizard.
Species: haasti HECTOR, 1874
Etymology:

Referred material:

Note: MCZ 1074 and 1681 were found with gastroliths (WHITTLE & EVERHART, 2000).

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Species: gardneri SEELEY, 1877
Etymology:

Holotype: BMNH 47295

Locality: East Wear Bay, Folkestone, (TR 243366), Kent County, England, Southern United Kingdom.

Horizon: Lower-Upper Gault.

Biostratigraphy:

Age: Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: Tooth and vertebrae.

Note: Gastroliths were found.

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Sp

GASPARINI, SALGADO & CASADIO, 2003

Locality: Locality A, 39°46’20”, 66°40’42”, central Rio Negro Province, Patagonia, Argentina.

Horizon: Jaguel Formation.

Biostratigraphy:

Age: Maastrichtian Stage, Upper Senonian Subepoch, Upper Gulf Eopch, Late Cretaceous.

Material:

MML-PV 3: Right mandibular fragment, prefrontal, 4 incomplete cervical vertebrae (1 anterior, 1 medial and 2 posterior), 2 incomplete dorsal, 1 sacral and 4 caudal vertebrae, right femur, 10 phalanges of a single (?) paddle, 1 indeterminate tarsal, rib fragments and several gastroliths.