Named By: Jorge O. Calvo and Jose F. Bonaparte - 1991.
Classification: Chordata, Reptilia, Dinosauria, Saurischia, Sauropodomorpha, Sauropoda,Titanosauria.
Species: A. delgadoi (type).
Size: About 15 to 18 meters long.
Known locations: Argentina, Neuquen Province - Candeleros Formation.
Time period: Cenomanian of the Cretaceous.
Fossil representation: Partial post cranial remains including vertebrae and fragments of the pelvis, ribs and hind limbs.
after the Andes Mountains, Andesaurus was a
dinosaur from South America, but one known from only incomplete
remains. This makes it hard to be certain about such things as a
total size or even a preferred diet beyond just general plants. The
vertebrae of Andesaurus though suggest that the
genus was a basal
Hailing from the Candeleros Formation, Andesaurus may have lived alongside the rebbachisaurid sauropods Limaysaurus and Nopcsaspondylus. Other dinosaurs active here include dromaeosaurids like Buiteraptor and alvaersaurids like Alnashetri. The dinosaurs of most concern to Andesaurus however would have been large abelisaurs like Ekrixinatosaurus, to even bigger carcharodontosaurids like Giganotosaurus, either one of these were capable of taking down a moderately sized sauropod.
- [Andesaurus delgadoi n. g. n. sp. (Saurischia, Sauropoda) a titanosaurid dinosaur from the Río Limay Formation (Albian-Cenomanian), Neuquén, Argentina.], Jorge O. Calvo and Jose F. Bonaparte - 1991.
- Anatomy of the basal titanosaur (Dinosauria, Sauropoda) Andesaurus delgadoi from the mid-Cretaceous (Albian–early Cenomanian) Río Limay Formation, Neuquén Province, Argentina: implications for titanosaur systematics. - Zoological Journal of the Linnean Society. 153: 1–27. - P. D. Mannion & J. O. Calvo - 2011.