Riojasaurus was a herbivorous dinosaur lived about 225 to 219 million years ago in the late Triassic period. The remains of the species were found scattered in the regions of Argentina, La Rioja Province - Los Colorados Formation. The genus was first described by Jose Fernando Bonaparte - 1967. This herbivore species comes under the classification of Chordata, Reptilia, Dinosauria, Saurischia, Sauropodomorpha, Prosauropoda, Riojasauridae.
From observing the skeletal structure of the creature it has been found that the genus is about 30-36 feet long and walked on four legs instead of two to hold up its big, heavy body. The back legs were only slightly bigger than the front legs, and this meant that its head was close to the ground making it convenient for eating the ferns and other plants that grew low. Riojasaurus also had a long and flexible neck to stretch long in climbing the tree branches.
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