Diadematacea

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

Diadematoida
Echinothurioida
Pedinoida

Diadematacia is a superorder of sea urchins. Unlike most other sea urchins, they generally have hollow spines. The tubercles on their test are perforated, and most species possess gills.

References[edit]

  • Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 980. ISBN 0-03-056747-5.