- Diadematoida
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Diadematoida
Temporal range: Early Jurassic–RecentEchinothrix diadema Scientific classification Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Subclass: Euechinoidea Superorder: Diadematacia Order: Diadematoida
Duncan, 1889Families (See Text)
Diadematoida is an order of sea urchins. They are distinguished from other sea urchins by the fact that their spines are hollow, or at best have an open mesh at the core, and by the presence of ten buccal plates around the mouth. Their test can be either solid or flexible.
Taxonomy
Order Diadematoida
- Family Aspidodiadematidae
- Family Diadematidae
- Family Lissodiadematidae
- Family Micropygidae
References
- Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 980. ISBN 0-03-056747-5.
- National History Museum. "Diadematoida". http://www.nhm.ac.uk/research-curation/research/projects/echinoid-directory/taxa/taxon.jsp?id=1018. Retrieved 20th Dec 2009.
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