Pseudoniscus

Pseudoniscus; Temporal range: Silurian PreЄ Є O S D C P T J K Pg N
	Restoration of the species P. aculeatus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Clade:	Prosomapoda
Clade:	Planaterga
Family:	†Pseudoniscidae
Genus:	†Pseudoniscus; Nieszkowski, 1859
Type species
	†Pseudoniscus aculeatus; Nieszkowski, 1859
Species
	†P. aculeatus Nieszkowski, 1859; †P. clarkei Ruedemann, 1916; †P. falcatus Woodward, 1868; †P. roosevelti Clarke, 1902;
Synonyms
	Neolimulus Woodward, 1868;

Pseudoniscus is a genus of planatergan, a clade of chelicerate arthropods. Fossils of the genus have been discovered in deposits of the Silurian period in the United Kingdom, the United States and Estonia. Pseudoniscus is one of the two members of the family Pseudoniscidae, the other being Cyamocephalus.[1][2]

References

Dunlop, J. A.; Penney, D.; Jekel, D. (2018). "A summary list of fossil spiders and their relatives" (PDF). World Spider Catalog. Natural History Museum Bern. pp. 1–296.
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.

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