Diadematacia

Diadematacia Temporal range:

Echinothrix diadema
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Echinoidea
Infraclass:	Acroechinoidea
Superorder:	Diadematacia
Orders
Diadematoida Echinothurioida Pedinoida

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.

Taxon identifiers
Diadematacea	Wikidata: Q632164 Wikispecies: Diadematacea ADW: Diadematacea ITIS: 157849 NCBI: 31171 Paleobiology Database: 168557 WoRMS: 152528

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