| Echinoida Temporal range: Late Cretaceous–Recent PreꞒ Ꞓ O S D C P T J K Pg N | |
|---|---|
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| Echinus melo | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Superorder: | Echinacea |
| Order: | Echinoida Troschal, 1872 |
| Families | |
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(See Text) | |
Echinoida is an order of sea urchins in the class Echinoidea. They are distinguished from other sea urchins by simultaneously possessing both an un-sculpted test and a feeding lantern with large plates fused across the top of each pyramid.
Taxonomy
Order Echinoida
- family Echinidae Gray, 1825
- family Echinometridae Gray, 1825
- family Parasaleniidae
- family Strongylocentrotidae Gregory, 1900
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Paracentrotus lividus (Echinidae)
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Echinometra lucunter (Echinometridae)
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Strongylocentrotus franciscanus (Strongylocentrotidae)
See also
- Colobocentrotus atratus - Shingle urchin
- Echinus acutus - White sea urchin
- Echinus esculentus - Common sea urchin
- Echinus tylodes
- Evechinus chloroticus - New Zealand sea urchin
- Heterocentrotus mammillatus - Red pencil urchin
- Heterocentrotus trigonarius - Slate pencil urchin
- Loxechinus albus - Chilean sea urchin
References
- Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 981. ISBN 0-03-056747-5.
- National History Museum. "Echinoida". Retrieved 19 Dec 2009.
| Taxon identifiers | |
|---|---|
| Echinoida | |
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