Location : S. America, Asia

If this monster was everything scientists think it was, it could have been the most vicious predator ever. Megaraptor was like a giant Velociraptor  , larger even than Utahraptor  , that had a killing claw over 14 inches (36 cm) long! Add to that its sharp teeth, long powerful arms and hands with huge claws and you have one fierce animal. The trouble is, very little of this dinosaur has been found, and it is a very recent discovery, so it may be some time before we know for certain what it really looked like.

Discovered in 1997 in Argentina, Megaraptor was found associated with the fossil remains of Unenlagia  a bird-like dinosaur. There is some speculation that Megaraptor was the adult version of Unenlagia  which is known from an apparently juvenile specimen. Remains of a specimen similar to those of the Megaraptor have also recently been found in China and await study.