Asterozoa
| Asterozoa Temporal range: Late Cambrian/Early Ordovician to Holocene | |
|---|---|
| A brittle star on a starfish | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Subphylum: | Asterozoa von Zittel, 1895 |
| Classes | |
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Asteroidea | |
| Synonyms | |
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The Asterozoa are a subphylum in the phylum Echinodermata. Characteristics include a star-shaped body and radially divergent axes of symmetry. The subphylum includes the class Asteroidea (the starfish), the class Ophiuroidea (the brittle stars and basket stars), and the extinct order Somasteroidea.
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