| Classe | Ordre | Famille |
| ARACHNIDA | Opiliones Sundevall, 1833 | Cladonychiidae Hadži, 1935 |
| | | Cosmetidae C.L. Koch, 1839 |
| | | Dicranolasmatidae Simon, 1879 |
| | | Epedanidae Sørensen, 1886 |
| | | Gonyleptidae Sundevall, 1833 |
| | | Ischyropsalididae Simon, 1879 |
| | | Nemastomatidae Simon, 1872 |
| | | Parasironidae Karaman, Mitov & Snegovaya, 2024 |
| | | Phalangiidae Latreille, 1802 |
| | | Phalangodidae Simon, 1879 |
| | | Podoctidae Roewer, 1912 |
| | | Sabaconidae Dresco, 1970 |
| | | Sclerosomatidae Simon, 1879 |
| | | Sironidae Leach, 1816 |
| | | Travuniidae Absolon & Kratochvíl, 1932 |
| | | Triaenonychidae Sørensen, 1886 |
| | | Trogulidae Latreille, 1802 |
