Edrioasteroidea

Rarity: Common

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At a glance

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Domain

Nature

Knowledge cost

3

Influence

4

Resistance

4

In collections

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What Wikipedia says

Edrioasteroidea is an extinct class of echinoderms. The living animal would have resembled a pentamerously symmetrical disc or cushion. They were obligate encrusters and attached themselves to inorganic or biologic hard substrates (frequently hardgrounds or brachiopods).

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

Image: Jstuby at English Wikipedia, Public domain, via Wikimedia Commons.