Diadematacea

Diadematacia
Temporal range: Late Triassic–Recent
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


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