Pycnogonida

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Kingdom: Animalia
Subregnum: Eumetazoa
Cladus: ParaHoxozoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Chelicerata
Classis:
Ordines (4): Pantopoda – †Nectopantopoda – †Palaeoisopoda – †Palaeopantopoda

Pycnogonida Latreille, 1810

• Pycnogonides Latreille, 1810: 424

• Latreille, P.A. 1810. Considérations générales sur l'ordre naturel des animaux composant les classes des crustacés, des arachnides, et des insectes : avec un tableau méthodique de leurs genres, disposés en familles. Paris: Schoell, 444 pp. BHL Reference page. 

• Bamber, R.N. 2007: A holistic re-interpretation of the phylogeny of the Pycnogonida Latreille, 1810 (Arthropoda). Pp. 295-312 In: Zhang, Z.-Q. & Shear, W.A. (eds) Linnaeus tercentenary: progress in invertebrate taxonomy. Zootaxa, 1668: 1–766. Abstract & excerpt
• Bamber, R. 2011. Class Pycnogonida Latreille, 1810. Pp 110–111 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. 
• Fry, W.G. 1978. A classification within the pycnogonids. Zoological Journal of the Linnean Society 63: 35–58. DOI: 10.1111/j.1096-3642.1978.tb02089.x .
• Hoek, P.P.C. 1881. Report on the Pycnogonida, dredged by H.M.S. Challenger during the years 1873-76. Reports of Science Research Voyage of H.M.S. Challenger. Zoology. 3(10): 1–167. BHL Reference page. 
• Lucena, R.A. & Christoffersen, M.L. 2018. An annotated checklist of Brazilian sea spiders (Arthropoda: Pycnogonida). Zootaxa 4370(2): 101–122. DOI: 10.11646/zootaxa.4370.2.1 Reference page. 
• Müller, H.-G.; Krapp, F. 2009: The pycnogonid fauna (Pycnogonida, Arthropoda) of the Tayrona National Park and adjoining areas on the Caribbean coast of Colombia. Zootaxa 2319: 1–138. Abstract & excerpt
• Staples, D.A. 2019. Pycnogonids (Arthropoda, Pycnogonida) from the Southwest Indian Ridge. Zootaxa 4567(3): 401–449. DOI: 10.11646/zootaxa.4567.3.1 Reference page. 
• Wang, J-J., Lin, H-S., Huang, D-Y., Zheng, X-Q., Liu, Q-H., Wang, J-J., Niu, W-T. & Zhang, F. 2020. Recent collections of sea spiders (Arthropoda: Pycnogonida) from China seas, with some new records and a checklist of the area. Zootaxa 4802(2): 361–373. DOI: 10.11646/zootaxa.4802.2.9 Reference page. 

• BHL bibliography
• Pycnogonida – Taxon details on Encyclopedia of Life (EOL).
• Global Biodiversity Information Facility. 2019. GBIF Backbone Taxonomy. Checklist dataset. Taxon: Pycnogonida.
• ION
• Pycnogonida in the Pycnobase: World Pycnogonida Database

For more multimedia, look at Pycnogonida on Wikimedia Commons.