Euechinoidea
The subclass Euechinoidea includes almost all living species of sea urchin, and fossil forms going back as far as the Triassic.
| Euechinoidea | |
|---|---|
 | |
| Paracentrotus lividus | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Subclass: | Euechinoidea Bronn, 1860 |
| Superorders | |
Taxonomy
List of orders according to World Register of Marine Species :
- Infra-classis Acroechinoidea
- Order Aspidodiadematoida
- Order Diadematoida
- Order Micropygoida
- Order Pedinoida
- Infra-classis Carinacea
- Super-order Calycina
- Order Phymosomatoida †
- Order Salenioida
- Super-order Echinacea
- Order Arbacioida
- Order Camarodonta
- Order Stomopneustoida
- Super-order Calycina
- Order Echinothurioida
- Infra-classis Irregularia
- Super-order Atelostomata
- Order Holasteroida
- Order Spatangoida
- Order Echinoneoida
- Order Holectypoida †
- Super-order Neognathostomata
- Order Cassiduloida
- Order Clypeasteroida
- Order Echinolampadoida
- Order Nucleolitidae †
- Super-order Atelostomata
Echinocyamus pusillus
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