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meaning: "Rioja lizard"
Named By: Jose Fernando Bonaparte in 1967
Time Period: Late Triassic, 227-213 Ma
Location: Argentina, La Rioja Province - Los Colorados Formation
Size: About 10 meters long
Diet: Herbivore
Fossil(s): Several individuals
Classification: | Chordata | Reptilia | Dinosauria | Saurischia | Sauropodomorpha | Prosauropoda | Riojasauridae |

Riojasaurus (meaning "Rioja lizard") was a herbivorous sauropodomorph dinosaur named after La Rioja Province in Argentina where it was found by Jose Bonaparte. It lived during the Late Triassic and grew to about 10 metres (33 ft) long. Riojasaurus is the only known riojasaurid to live in South America.

Read more about Riojasaurus at Wikipedia
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