Palpigradi

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Chelicerata
Classis: Arachnida
Ordo: Palpigradi
Familiae (2): Eukoeneniidae – Prokoeneniidae

Palpigradi Thorell, 1888

• Giribet, G., McIntyre, E., Christian, E., Espinasa, L., Ferreira, R., Francke, Ó.F., Harvey, M.S., Isaia, M., Kováč, Ľ., McCutchen, L., Souza, M.F.V.R. & Zagmajster, M. 2014. The first phylogenetic analysis of Palpigradi (Arachnida) – the most enigmatic arthropod order. Invertebrate Systematics 28(4): 350–360. DOI: 10.1071/IS13057 Reference page. 
• Harvey, M.S. 2003: Catalogue of the smaller arachnid orders of the world: Amblypygi, Uropygi, Schizomida, Palpigradi, Ricinulei and Solifugae. CSIRO Publishing, Australia. ISBN 0 643 06805 8 Google books
• Prendini, L. 2011. Order Palpigradi Thorell, 1888. P 121 In Zhang, Z.-Q. (ed.) 2011. Animal biodiversity: an outline of higher-level classification and survey of taxonomic richness. Zootaxa 3148: 1–237. Open access. Reference page. . Full article (PDF) Reference page.