In Depth
At eight meters long Rocasaurus was actually quite small for a sauropod, though it still would have been one of the larger dinosaurs on the landscapes of late Cretaceous Argentina. However if the holotype is correctly interpreted as that of a juvenile, then adults of the genus would have certainly grown larger.
Another sauropod from the Allen Formation is Saltasaurus, a genus that Rocasaurus may have come into contact with while pterosaurs like Aerotitan flew overhead.
Further Reading
- Un nuevo saltasaurino (Sauropoda, Titanosauridae) de la provincia de R�o Negro (Formaci�n Allen, Cret�cico Superior), Patagonia, Argentina [A new saltasaurine (Sauropoda, Titanosauridae) from R�o Negro province (Allen Formation, Upper Cretaceous), Patagonia, Argentina, Leonardo Salgado and Claudia Azpilicueta - 2000.
