Claim: Mastigoproctus giganteus, the giant whip scorpion, belongs in the Animalia Kingdom, in the class Arachnida and in the family Thelyphonida.
Evidence: Mastigoproctus giganteus, the giant whip scorpion, also called the giant vinegaroon or grampus, is a species of whip scorpions in the family Thelyphonidae. Kingdom: Animalia Class: Arachnida Family: Thelyphonidae