v t e Extant Cnidaria classes
Anthozoa	Octocorallia Hexacorallia Ceriantharia
Medusozoa	Cubozoa (box jellyfish) Hydrozoa (hydrozoans) Scyphozoa (true jellyfish) Staurozoa (stalked jellyfish) Polypodiozoa (Polypodium)
Myxozoa	Malacosporea Myxosporea

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