Echinoida Temporal range:
| |
---|---|
Echinus melo | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Echinodermata |
Class: | Echinoidea |
Superorder: | Echinacea |
Order: | Echinoida Troschal, 1872 |
Families | |
(See Text) |
Echinoida is an order of sea urchins in the class Echinoidea. They are distinguished from other sea urchins by simultaneously possessing both an un-sculpted test and a feeding lantern with large plates fused across the top of each pyramid.