Therizinosaurus

Therizinosaurus or "scythe lizard" was first discovered in 1948. It looked rather peculiar with its small head, long neck, short tail and large body. Its most distinctive feature was gigantic claws on its front limbs that were nearly three feet long.

Length	8 m (26 ft)
Weight	450 kg (990 lbs)
Period	Upper Cretaceous
Location	Mongolia