Troglotayosicidae
(tree size 2)
Typhlochactidae
(tree size 1)
Diplocentridae
(tree size 5)
Scorpiopidae
Heteroscorpionidae
Hormuridae
(tree size 13)
Akravidae
(tree size 2)
Chaerilobuthidae
(tree size 4)
Urodacidae