| Suborder | Cyphophthalmi Simon, 1879 Mite-harvestmen | 6 57 387 | Families Genera Species |
| Suborder | Laniatores Thorell, 1876 Armored harvestmen | 51 1914 6622 | Families Genera Species |
| Suborder | Palpatores Latreille, 1802
| 25 397 4152 | Families Genera Species |
| Suborder | Tetrophthalmi ♰ Garwood & Sharma, 2014
| 1 0 0 | Family Genera Species |
| Family | Agoristeridae Rambla & Juberthie, 1994
| 0 0 | Genera Species |
| Family | Beloniscidae Kury, Pérez-González & Proud, 2019
| 1 1 | Genus Species |
| Family | Gerdesiidae Bragagnolo, Hara & Pinto-da-Rocha, 2015
| 1 2 | Genus Species |
| Family | Hinzuanidae Pocock, 1903
| 0 0 | Genera Species |
| Family | Ischyropsalidae Simon, 1879 ⇒ Ischyropsalididae
| 0 0 | Genera Species |
| Family | Leiobunidae
| 2 0 | Genera Species |
| Family | Mesokanidae Bartel, Dunlop, Sharma, Selden, Ren & Shih, 2021
| 1 1 | Genus Species |
| Family | Monooculricinuleidae Wunderlich, 2017
| 1 2 | Genus Species |
| Family | Otilioleptidae Acosta, 2019
| 1 1 | Genus Species |
| Family | Palpinidae Pickard-Cambridge, 1905
| 0 0 | Genera Species |
| Family | Paralolidae Kratochvíl, 1958
| 0 0 | Genera Species |
| Family | Peltaeonychidae Absolon & Kratochvíl, 1932
| 0 0 | Genera Species |
| Family | Stignidae Mello-Leitao, 1935
| 0 0 | Genera Species |
| Genus | Baltonychia Bartel, Derkarabetian & Dunlop, 2022
| 1 | Species |
| Genus | Bicnia Kishida, 1938
| 1 | Species |
| Genus | Echinopustulatus Dunlop, 2004
| 1 | Species |
| Genus | Fyicolana Roewer, 1963
| 1 | Species |
| Genus | Hevelia Kury, García & Ahumada-C., 2023
| 1 | Species |
| Genus | Rakala
| 1 | Species |
| Genus | Shearogovea Giribet, 2011
| 0 | Species |
| Genus | Siva Kishida, 1938
| 1 | Species |