Diadematacia
| Diadematacia Temporal range: | |
|---|---|
| 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.
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