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meaning: "Roca lizard"
Named By: Leonardo Salgado and Claudia Azpilicueta in 2000
Time Period: Late Cretaceous
Location: Argentina, Rio Negro Province - Allen Formation
Size: About 8 meters long, possibly larger
Diet: Herbivore
Fossil(s): Partial post cranial remains including vertebrae, pubis, ischium and left femur, possibly of a juvenile
Classification: | Chordata | Reptilia | Dinosauria | Saurischia | Sauropodomorpha | Sauropoda |

Rocasaurus (meaning "Roca City Lizard") is a genus of titanosaurian sauropod that lived in South America about 80 million years ago, during the Late Cretaceous. This genus grew up to 8 metres (26 ft) long, making it one of the smaller sauropods. Rocasaurus was discovered in Argentina in 2000.

The type species, Rocasaurus muniozi, was formally described by Salgado and Azpilicueta in 2000.

Read more about Rocasaurus at Wikipedia
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