Spinulosida
Order of starfishes / From Wikipedia, the free encyclopedia
The Spinulosida are an order of sea stars containing at least 120 species in seven genera and one family.
Quick Facts Scientific classification, Families ...
Spinulosida | |
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Echinaster sepositus | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Echinodermata |
Class: | Asteroidea |
Superorder: | Spinulosacea |
Order: | Spinulosida Perrier, 1884 [1] |
Families | |
2 , see text. |
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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]