Diadematacia

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Diadematacia
Temporal range: Late Triassic–Recent
Echinothrix diadema
Scientific classification
Kingdom:
Animalia
Phylum:
Echinodermata
Class:
Echinoidea
Subclass:
Euechinoidea
Superorder:
Diadematacia
Orders

Diadematoida
Echinothurioida
Pedinoida

The Diadematacia form 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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