- Type of dinosaur:
- prosauropod
- Length:
- 5.2m
- Diet:
- herbivorous or omnivorous
- When it lived:
- Late Triassic, 221-210 million years ago
- Found in:
- Argentina
20 Riojasaurus skeletons have been found, both adult and young.
Taxonomic details
- Taxonomy:
- Dinosauria, Saurischia, Sauropodomorpha, Prosauropoda, Anchisauria, Melanorosauridae
- Named by:
- Bonaparte (1969)
- Type species:
- incertus
Discover more

Step back in time
Find out more about dinosaurs' lives and the world they lived in.

Fun and games
Learn more about dinosaurs through toys, board games and activity kits, available from our online shop.

Dinosaurs Gallery
Roarrr. Come face-to-face with world-famous dinosaurs.