Spinulosida

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

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

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]

• Echinasteridae Verrill, 1870