Diadematoida

Rarity: Common

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At a glance

Class

Figure

Domain

Nature

Knowledge cost

2

Influence

2

Resistance

4

In collections

Nobody has pulled it yet.

What Wikipedia says

The Diadematoida are an order of sea urchins. They are distinguished from other sea urchins by the fact that their spines are hollow, or at best have an open mesh at the core, and by the presence of 10 buccal plates around the mouth. Their tests can be either solid or flexible.

Excerpt from the Wikipedia article “Diadematoida”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Michael Wolf, CC BY 2.5, via Wikimedia Commons.