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Cryptosyringida |
/Eleutherozoa
/Cryptosyringida
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Classification
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- Cryptosyringida
- Echinoidea
- Atelostomata
- Euechinoidea
- Atelostomata
- Echinacea
- Echinoida
- Echinidae
- Echinus
- Paracentrotus
- Psammechinus
- Temnopleuroida
- Perischoechinoidea
- Holothuroidea
- Ophiuroidea
- Ophiurida
- Chilophiurina
- Gnathophiurina
- Amphiuridae
- Ophiothricidae
- Laemophiurina
- Phrynophiurida
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