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Spinulosida

From Wikipedia, the free encyclopedia

Spinulosida
Echinaster sepositus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Echinodermata
Class: Asteroidea
Superorder: Spinulosacea
Order: Spinulosida
Perrier, 1884 [1]
Families
2 , see text.

The Spinulosida are an order of sea stars containing at least 120 species in seven genera and one family.

Spinulosids completely lack pedicellariae and have a delicate skeletal arrangement. Their name comes from the presence of numerous low spines on the aboral (upper) surface.[2] No fossil spinulosids have yet been found.[3]

Taxonomy

The following family is recognised by the World Register of Marine Species:[1]

References

  1. ^ a b Mah, C. (2015). Mah CL (ed.). "Spinulosida Perrier, 1884". World Asteroidea database. World Register of Marine Species. Retrieved 2015-07-23.
  2. ^ Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 948. ISBN 0-03-056747-5.
  3. ^ "Asterozoa: Fossil groups: SciComms 05-06: Earth Sciences". Palaeo.gly.bris.ac.uk. 2005-11-22. Retrieved 2010-07-30.


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This page was last edited on 13 October 2023, at 19:00
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