Pseudoniscidae

Pseudoniscidae Temporal range: Silurian PreꞒ Ꞓ O S D C P T J K Pg N
Restoration of Pseudoniscus roosevelti and Cyamocephalus loganensis
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Clade:	Prosomapoda
Clade:	Planaterga
Family:	† Pseudoniscidae Packard, 1886
Type species
† Pseudoniscus aculeatus Nieszkowski, 1859
Genera
† Cyamocephalus † Pseudoniscus

Pseudoniscidae is an extinct family of synziphosurine chelicerates that lived in the Silurian. Pseudoniscidae is classified inside the clade Planaterga, alongside Bunodidae and Dekatriata (chasmataspidids, eurypterids and arachnids). ^[1] Pseudoniscidae is composed by two genera, Cyamocephalus and Pseudoniscus (the type genus). ^{[2] [1] [3]}

References

1. Lamsdell, James C. (2013). "Revised systematics of Palaeozoic 'horseshoe crabs' and the myth of monophyletic Xiphosura". Zoological Journal of the Linnean Society. 167 (1): 1–27. doi: 10.1111/j.1096-3642.2012.00874.x . ISSN   0024-4082.
2. Anderson, Lyall I. (1999-01-01). "A new specimen of the Silurian synziphosurine arthropod Cyamocephalus" . Proceedings of the Geologists' Association. 110 (3): 211–216. doi:10.1016/S0016-7878(99)80071-6. ISSN   0016-7878.
3. Dunlop, J. A.; Penney, D.; Jekel, D. (2020). "A summary list of fossil spiders and their relatives" (PDF). World Spider Catalog. Natural History Museum Bern. pp. 1–296.