Q Where was Megaraptor’s enormous claw initially thought to be located?

When Megaraptor was first discovered, its enormous claw was thought to be located on the hind limb because it resembled the sickle-shaped claws found on the hind limbs of dromaeosaurids.
However, fossils that revealed the structure of its forelimbs were discovered later, showing that the enormous claw was actually located on the forelimb.