Biology:Hydrocephalus (trilobite)

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Short description: Genus of arthropods (fossil)

Hydrocephalus
Temporal range: Middle Cambrian
Trilobites - Hydrocephalus carens.JPG
Hydrocephalus carens at the National Museum (Prague)
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: †Trilobita
Order: †Redlichiida
Family: †Paradoxididae
Genus: †Hydrocephalus
Barrande, 1846
Species
  • H. vikensis H. spinulosus
  • H. minor H. carens
  • Barrande, 1846 (type) (Barrande, 1852) = Rejkocephalus lyelli
  • (Boeck, 1827) = Trilobites minor Rushton & Weidner, 2007[1]
  • H. paradoxum H. mandiki
  • (Hawle et Corda, 1847) = Paradoxides paradoxum Rushton, Weidner & Ebbestad, 2016
  • H. lyelli Kordule, 1990
  • (Barrande, 1846) = Paradoxides rotundatus, Rejkocephalus rotundatus H. rotundatus
Synonyms

Phlysacium Hawle et Corda, 1847
Rejkocephalus Kordule, 1990

Hydrocephalus ("water head") is an extinct genus of redlichiid trilobite that was very common during the Middle Cambrian of Eurasia and North America, which lasted from 508 to 497 million years ago. This trilobite is up to 20 cm long and more widely built than others of the time. In comparison to other members of its family, its glabella appears swollen.

Gallery

  • Hydrocephalus minor from Jince (Czech Republic)

  • Free cheek of H. carens, 33mm between the tips

  • 3D model

References

  1. ↑ Rushton, A.W.A.; Weidner, T. (2007). "The Middle Cambrian paradoxidid trilobite Hydrocephalus from Jämtland, central Sweden". Acta Geologica Polonica 57 (4): 391–401. http://agp.org.pl/table/pdf/57-4/rushton.pdf. Retrieved 30 March 2013. 

Wikidata ☰ Q1056720 entry




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