Antedon belongs to the class

Crinoidea

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Asteroidea

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Ophiuroidea

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Echinoidea

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Solution

The correct option is A Crinoidea
Antedon is a genus of free-swimming, stemless crinoids. It is living fossil and commonly known as feather star. It belongs to class Crinoidea of phylum Echinodermata. It does not have stems but has five pairs of feathery arms arising from a central concave disc.
Therefore, the correct answer is option A.

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