Calcinea

Rarity: Common

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At a glance

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Knowledge cost

1

Influence

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Resistance

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In collections

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What Wikipedia says

The Calcinea are a subclass of the calcareous sponges characterized by three-rayed (triactine) spicules whose rays meet at equal angles. The nucleus of their choanocytes lies at the base of the cell, and the flagellum is not directly connected to it.

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

Image: Esculapio, CC BY 3.0, via Wikimedia Commons.