Diadematacia

The Diadematacia are a type 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.

Diadematacia
Temporal range: Late Triassic–Recent
Echinothrix diadema (1).jpg
Echinothrix diadema
Scientific classification e
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Infraclass: Acroechinoidea
Superorder: Diadematacia
Orders

Diadematoida
Echinothurioida
Pedinoida

ReferencesEdit

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