Cyamocephalus

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Cyamocephalus
Temporal range: Silurian
20200814 Cyamocephalus loganensis.png
Reconstruction of Cyamocephalus loganensis
Scientific classification e
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Clade: Prosomapoda
Clade: Planaterga
Family: †Pseudoniscidae
Genus: †Cyamocephalus
Currie, 1927
Type species
†Cyamocephalus loganensis
Currie, 1927

Cyamocephalus is a genus of synziphosurine,[1] a paraphyletic group of fossil chelicerate arthropods.[2][3] Cyamocephalus was regarded as part of the clade Planaterga.[2][4][5][6][3][7] Fossils of the single and type species, C. loganensis, have been discovered in deposits of the Silurian period in Lesmahagow, Scotland (in the United Kingdom). Cyamocephalus is one of the two members of the family Pseudoniscidae, the other being Pseudoniscus.[1][7][2] Cyamocephalus differ from Pseudoniscus by the fused tergites of 6th and 7th opisthosomal segments.[1]

References[]

  1. ^ a b c 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.
  2. ^ a b c 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.
  3. ^ a b Bicknell, Russell D. C.; Pates, Stephen (2020). "Pictorial Atlas of Fossil and Extant Horseshoe Crabs, With Focus on Xiphosurida". Frontiers in Earth Science. 8: 98. Bibcode:2020FrEaS...8...98B. doi:10.3389/feart.2020.00098. ISSN 2296-6463.
  4. ^ Selden, Paul A.; Lamsdell, James C.; Qi, Liu. "An unusual euchelicerate linking horseshoe crabs and eurypterids, from the Lower Devonian (Lochkovian) of Yunnan, China". Zoologica Scripta. 44 (6): n/a. ISSN 0300-3256.
  5. ^ Lamsdell, James C.; Briggs, Derek E. G.; Liu, Huaibao P.; Witzke, Brian J.; McKay, Robert M. (2015). "A new Ordovician arthropod from the Winneshiek Lagerstätte of Iowa (USA) reveals the ground plan of eurypterids and chasmataspidids". The Science of Nature. 102 (9–10): 63. Bibcode:2015SciNa.102...63L. doi:10.1007/s00114-015-1312-5. ISSN 0028-1042. PMID 26391849. S2CID 8153035.
  6. ^ Bicknell, Russell D. C.; Lustri, Lorenzo; Brougham, Tom (2019-12-01). "Revision of "Bellinurus" carteri (Chelicerata: Xiphosura) from the Late Devonian of Pennsylvania, USA". Comptes Rendus Palevol. 18 (8): 967–976. doi:10.1016/j.crpv.2019.08.002. ISSN 1631-0683.
  7. ^ a b 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.


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