Rinconsaurus belongs to the family of titanosaurid sauropod that has been found existed in the Turonian to Coniacian age of late cretaceous period. The fossil remains of this species was first recovered in Argentina, Neuquén Province - Neuquén Formation. This herbivore species comes under the classification of Chordata, Reptilia, Dinosauria, Saurischia, Sauropodomorpha, Sauropoda, Titanosauria.
The species was named by Calvo and Riga in 2003. Fossils of Rinconsaurus were discovered in 1997 by Gabriel Benítez. Remains of three individuals, including two adults and one juvenile were the found fossil representations which included vertebrae, limb bones, scapula, hip bones and several ribs. Cranial fragments, a mandible, and two teeth have also been discovered. From the known skeletal structure, it is estimated that the body size of Rinconsaurus would be up to 11 meters long.
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