Every month, 100,000 readers use the Dinosaur Database, but we receive no support from you. Developing and updating the database requires a lot of work. Therefore, as of September 1, 2025, the database will be closed. If you want it to remain open and be updated, please support us via the "Buy us a coffee" button available on every page.
Dinosaur: Riojasaurus incertus
| Length*: | 6.8 m | 22.3 ft |
| Weight*: | 800 kg | 1,764 lb |
*The largest known specimen
Period
Epoch: Late Triassic
Stage: Norian
Years: 227–208.5 Ma
Details
Status: valid
Author: Bonaparte
Year: 1969
Distribution
Area: South America
Country: Argentina
Region: La Rioja
Formation: Los Colorados
Locations
Sources
Material: At least several individuals.
References: Bonaparte, J.F. & Pumares, J.A. (1995). Notas sobre el primer craneo de Riojasaurus incertus (Dinosauria, Prosauropoda, Melanorosauridae) del Triasico Superios de La Rioja, Argentina.
