Atelostomata
| Atelostomata Temporal range:
| |
|---|---|
| |
| Echinocardium cordatum | |
Scientific classification 
| |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Subclass: | Euechinoidea |
| Infraclass: | Irregularia |
| Superorder: | von Zittel, 1879 |
| Orders | |
The Atelostomata are a type of sea urchins. They are distinguished from other sea urchins by their irregular shape and the absence of a feeding lantern. The group includes the well known heart urchins, as well as some less familiar and extinct forms.
List of orders
- Family † Acrolusiidae Mintz, 1968
- Family † Collyritidae d'Orbigny, 1853
- Family † Disasteridae Gras, 1848
- order Holasteroida (Durham & Melville, 1957)
- order Spatangoida (L. Agassiz, 1840)
- Family † Tithoniidae Mintz, 1968
References
- Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 981. ISBN 0-03-056747-5.
- Kroh A, Mooi R (eds.). "Atelostomata". World Echinoidea Database. World Register of Marine Species.