Spinulosida
| Spinulosida | |
|---|---|
| Echinaster sepositus | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Asteroidea |
| Superorder: | Spinulosacea |
| Order: | Spinulosida Perrier, 1884 |
| 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. No fossil spinulosids have yet been found.