Scientific name Echinoida Subclass Euechinoidea | Superorder Echinacea Rank Order | |
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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.

Taxonomy
Order Echinoida




References
Echinoida Wikipedia(Text) CC BY-SA