Andesaurus

An-deez-sore-us.
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Emerson Winslow

Paleoichthyologist

Emerson Winslow delves into the underwater world of prehistoric fish, uncovering the mysteries of early marine life. His discoveries have enhanced understanding of vertebrate evolution in aquatic environments.

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Name

Andesaurus ‭(‬Andes lizard‭).

Phonetic

An-deez-sore-us.

Named By

Jorge O.‭ ‬Calvo and Jose F.‭ ‬Bonaparte‭ ‬-‭ ‬1991.

Classification

Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Sauropodomorpha,‭ ‬Sauropoda,Titanosauria.

Diet

Herbivore.

Species

A.‭ ‬delgadoi‭

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.

In Depth

       Named after the Andes Mountains,‭ ‬Andesaurus was a titanosaurian sauropod 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 (‬primitive‭) ‬titanosaur.

       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.

Further Reading

-‭ [‬Andesaurus delgadoi n.‭ ‬g.‭ ‬n.‭ ‬sp.‭ (‬Saurischia,‭ ‬Sauropoda‭) ‬a titanosaurid dinosaur from the R�o Limay Formation‭ (‬Albian-Cenomanian‭)‬,‭ ‬Neuqu�n,‭ ‬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) R�o Limay Formation, Neuqu�n Province, Argentina: implications for titanosaur systematics. – Zoological Journal of the Linnean Society. 153: 1–27. – P. D. Mannion & J. O. Calvo – 2011.

SPECIES SPOTLIGHT