Antedon is a member of class

Options

A. Echinoidea
B. Asteroidea
C. Crinoidea
D. Ophiuroidea

Answer

To determine the class to which Antedon belongs, we can analyze the provided options and their corresponding characteristics:

1. **Echinoidea**: This class includes sea urchins, which are characterized by their spiny bodies and rounded shapes.

2. **Asteroidea**: Members of this class are commonly known as starfish. They have a flat, star-like appearance with multiple arms radiating from a central disc.

3. **Crinoidea**: This class includes feather stars and sea lilies. Members of this group have a distinct appearance with feathery arms that are used for feeding.

4. **Ophiuroidea**: This class is known for brittle stars, which have long, slender arms that are easily broken off.

Now, focusing on Antedon, it is specifically identified as a feather star. This classification directly links Antedon to the class **Crinoidea**.

Thus, the answer to the question is:
**Antedon is a member of the class Crinoidea.**