Riojasaurus

Riojasaurus ("Rioja lizard") is a sauropodomorph dinosaur of Late Triassic Argentina.

Description
Riojasaurus is large for a prosauropod, growing to about 10 meters in length. It was especially bulky, and had heavy legs, which meant it was probably quadrupedal.

Classification
Riojasaurus has been considered a close relative of the earliest sauropods. However, this is possibly due to convergent evolution.

History
Riojasaurus was described in 1967 by José Bonaparte from the Los Colorados Formation of Argentina.