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.
| 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
