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