Stelleroidea
class of echinoderms
Quick Summary
The Stelleroidea is a class within the phylum Echinodermata, which are marine invertebrates. This class includes animals like starfishes (Asteroidea) and brittle stars (Ophiuroidea). Echinoderms are characterized by their calcium carbonate skeletons and, in most living species, a five-part body symmetry. The Stelleroidea specifically are known for their star-shaped bodies, with arms radiating from a central disk. These creatures are found worldwide in marine environments.1234
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