Eleutherozoa

Rarity: Common

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At a glance

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Knowledge cost

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In collections

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What Wikipedia says

Eleutherozoa is a subphylum of echinoderms. They are mobile animals with the mouth directed towards the substrate. They usually have a madreporite, tube feet, and moveable spines of some sort. It includes all living echinoderms except for crinoids.

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

Image: Auteur inconnu, Public domain, via Wikimedia Commons.