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Temporal range: Late Cretaceous–Recent
Riccio Melone a Capo Caccia
Echinus melo
Scientific classification
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Subclass: Euechinoidea
Superorder: Echinacea
Order: Echinoida
Troschal, 1872

(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.


Order Echinoida

See also[edit]


  • 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.