What kind of animal is Kabuto?

What kind of animal is Kabuto? Kabuto is based off of the living fossil the horseshoe crab, however, giant isopods are also giant deep-sea crustaceans so they have more than a few things in common with this fossil Pokemon. The giant isopod is one of the largest arthropods in the world.

Kabuto is based off of the living fossil the horseshoe crab, however, giant isopods are also giant deep-sea crustaceans so they have more than a few things in common with this fossil Pokemon. The giant isopod is one of the largest arthropods in the world.