Massospondylus

A bipedal herbivore, Massospondylus (Greek for "longer vertebrae) had a long neck and tail, with a small head and slender body. On each of its forefeet, it bore a sharp thumb claw that was used in defense or feeding.

Length	Up to 4 m (13 ft)
Weight	Up to 135 kg (300 lbs)
Period	Early Jurassic
Location	South Africa