Named By: J. E. Powell - 1992.
Synonyms: Loricosaurus?, Loricosaurus scutatus, Microcoelus?, Saltasaurus australis, Saltasaurus robustus, Titanosaurus nanus, Titanosaurus australis, Titanosaurus robustus.
Classification: Chordata, Dinosauria, Sauropodomorpha, Titanosauria, Saltasauridae, Saltasaurinae.
Species: N. australis (type), N. robustus?
Size: About 8 meters long.
Known locations: Argentina, Rio Negro Province - Anacleto Formation.
Time period: Campanian of the Cretaceous.
Fossil representation: Almost the entire post cranial skeleton is known.
Neuquensaurus is easily one of the smallest of the known titanosaurs, with only genera such as Magyarosaurus being known to clearly be smaller. Neuquensaurus has had a fairly complicated taxonomic history with fossils of Neuquensaurus previously being described as belonging to both Titanosaurus and Saltasaurus before being renamed as Neuquensaurus. In addition to this the genera Microcoelus and Loricosaurus may actually be synonymous with Neuquensaurus. The second species of Neuquensaurus, N. robustus is at the time of writing also considered to be dubious on the basis of a distinct lack of diagnostic features upon the fossils of this species.
- Osteologia de Saltasaurus loricatus (Sauropoda - Titanosauridae) del Cretácico Superior del noroeste Argentino [Osteology of Saltasaurus loricatus (Sauropoda - Titanosauridae) from the Upper Cretaceous of northwest Argentina]. - J. E. Powell - In J. L. Sanz & A. D. Buscalioni (eds.), Los Dinosaurios y Su Entorno Biotico: Actas del Segundo Curso de Paleontologia in Cuenca. Institutio‘Juan de Valdes’, Cuenca, Argentina 165-230. - 1992.
- The appendicular skeleton of Neuquensaurus, a Late Cretaceous saltasaurine sauropod from Patagonia, Argentina. - Acta Palaeontologica Polonica. 55 (3): 399–426. - Alejandro Otero - 2010.