Diadematacia
Superorder of sea urchins
| Diadematacia Temporal range: Late Triassic–Recent PreꞒ Ꞓ O S D C P T J K Pg N | |
|---|---|
 | |
| Echinothrix diadema | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Infraclass: | Acroechinoidea |
| Superorder: | Diadematacia |
| Orders | |
| Diadematoida | |
The Diadematacia are a superorder of sea urchins. Unlike most other sea urchins, they generally have hollow spines. The tubercles on their tests 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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