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Temporal range: Middle Jurassic–recent
Scientific classification
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Superorder: Echinacea
Order: Salenioida
Delage, 1903

The Salenioida are an order of sea urchins.

Description and characteristics[edit]

They are distinguished from other sea urchins by the presence of a large plate on the upper surface, with the anus to one side. They have very large tubercles between the ambulacral plates, and much smaller ones on the ambulacral plates themselves.


According to World Register of Marine Species :


  • Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 980. ISBN 0-03-056747-5.
  • National History Museum. "Selenioida". Retrieved 19 Dec 2009.