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Argyrosaurus superbus
Temporal range: Late Cretaceous, 90Ma
Argyrosaurus femur in situ.jpg
Argyrosaurus femur in situ, Argentina, 1924
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Suborder: Sauropodomorpha
Clade: Titanosauria
Family: Argyrosauridae
Genus: Argyrosaurus
Lydekker, 1893
Species: † A. superbus
Binomial name
Argyrosaurus superbus
Lydekker, 1893

Argyrosaurus (/ˌɑrɪrɵˈsɔrəs/ AR-ji-ro-SAWR-əs) is a genus of herbivorous titanosaurid dinosaur that lived about 90 million years ago, during the Late Cretaceous Period of what is now South America (Argentina and Uruguay).

The type species, Argyrosaurus superbus, was formally described by Richard Lydekker in 1893.[1] The genus name means 'silver lizard' from Greek argyros, 'silver', and sauros, 'lizard', because it was discovered in Argentina, which literally means 'silver land'. The specific epithet means "proud" in Latin.

The genus was originally based mainly on a huge left forelimb, holotype MLP 77-V-29-1. Other material has since been referred to the species, including other forelimb elements, a shoulder blade, a pubis, several femora, and a few back and tail vertebrae.[2]


  1. ^ Lydekker, R. (1893). "Contributions to the study of the fossil vertebrates of Argentina. I. The dinosaurs of Patagonia", Anales del Museo de la Plata, Seccion de Paleontologia 2: 1-14
  2. ^ Argyrosaurus at DinoData

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