Fam. Buthidae Ajsaguyod via Flickr, Creative Commons Attribution-NoDerivs.

Fam. Scorpionidae Vil.sandi via Flickr, Creative Commons Attribution-NoDerivs.

Taxonomy:

Archaeobuthoidea (Add)
Buthoidea (Add)

Fam. Buthidae

Chactoidea (Add)

Fam. Chactidae (Add)
Fam. Euscorpiidae (Add)
Fam. Typhlochactidae (Add)

Chaeriloidea (Add)

Fam. Chaerilidae (Add)
Fam. Pseudochactidae (Add)

Eoctonoidea (Add)
Iuroidea (Add)
Palaeoeuscorpioidea (Add)
Palaeopisthacanthoidea (Add)
Pseudochactoidea (Add)
Scorpionoidea (Add)

Fam. Bothriuridae (Add)
Fam. Diplocentridae (Add)
Fam. Hadogenidae (Add)
Fam. Hemiscorpiidae (Add)
Fam. Heteroscorpionidae (Add)
Fam. Ischnuridae (Add)
Fam. Lisposomidae (Add)
Fam. Scorpionidae

Fam. Urodacidae (Add)

Spongiophonoidea (Add)
Vaejovoidea (Add)

Fam. Caraboctonidae (Add)
Fam. Luridae (Add)
Fam. Superstitionidae (Add)
Fam. Vaejovidae (Add)