Webb, J.E., Wallwork, J.A. & Elgood, J.H. (1978). Guide to invertebrate animals. MacMillan Press, London. [2nd edition]
| Taxon | |
|---|---|
| Pseudoscorpiones de Geer, 1778 | 115, Chelonethi |
| Palpigradi Thorell, 1888 | 117, Palpigradi |
| Solifugae Sundevall, 1833 | 117, Solifugae |
| Schizomida Petrunkevitch, 1945 | 118, (as Schizopeltida), Schizopeltidia |
| Uropygi Thorell, 1883 | 118, (as Holopeltida), Holopeltidia |
| Amblypygi Thorell, 1883 | 120, Amblypygi |
| Ricinulei Thorell, 1876 | 124, Ricinulei |