 It was herbivorous, although it had sharp claws (with an especially large thumb claw) and teeth.These features have been used to support claims, the most recent by Cooper in 1981, that "Lufengosaurus" may have been at least partially omnivorous, but the sharp teeth witnessed in "Lufengosaurus" and other early sauropodomorphs are similar to those seen in iguanaian lizards – which are herbivorous.Alternatively, the claws may have been used for defense or raking foliage from trees.