Suborder
Pseudoscorpiones de Geer 1778
Order
Epiocheirata Harvey, 1992c: 1398-1399.
Chthoniidae Daday, 1888
Family
Feaellidae Ellingsen, 1906
Lechytiidae Chamberlin, 1929
Pseudogarypidae Chamberlin, 1923
Pseudotyrannochthoniidae Beier, 1932
Tridenchthoniidae Balzan, 1892