Diadematacea
Diadematacia Temporal range: Late Triassic–Recent | |
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Echinothrix diadema | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Echinodermata |
Class: | Echinoidea |
Subclass: | Euechinoidea |
Superorder: | Diadematacia |
Orders | |
Diadematacia is a superorder of sea urchins. Unlike most other sea urchins, they generally have hollow spines. The tubercles on their test are perforated, and most species possess gills.
References
- Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 980. ISBN 0-03-056747-5.
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