*** Welcome to piglix ***

Temnopleuroida

Temnopleuroida
Temporal range: Upper Cretaceous–recent
Microcyphus rousseaui.jpg
Microcyphus rousseaui
Scientific classification
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Superorder: Echinacea
Order: Camarodonta
Infraorder: Temnopleuridea
Mortensen, 1942
Families

Glyphocyphidae
Temnopleuridae
Trigonocidaridae
Zeuglopleuridae


Glyphocyphidae
Temnopleuridae
Trigonocidaridae
Zeuglopleuridae

Temnopleuridea is an infraorder of sea urchins in the order Camaradonta. They are distinguished from other sea urchins by the presence of large fused plates on top of the feeding lantern. The test is usually sculpted to some degree, and has perforated tubercles.

According to World Register of Marine Species:



...
Wikipedia

...