Biology:Echinoida

Short description: Order of sea urchins

Echinoida Temporal range: Late Cretaceous–Recent PreЄ Є O S D C P T J K Pg N
Echinus melo
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Echinoidea
Superorder:	Echinacea
Order:	Echinoida Troschal, 1872
Families
(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

• 

  Paracentrotus lividus (Echinidae)

• 

  Echinometra lucunter (Echinometridae)

• 

  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". http://www.nhm.ac.uk/research-curation/research/projects/echinoid-directory/taxa/taxon.jsp?id=947. 

Wikidata ☰ Q987502 entry