One level back to [Protozoa] 2.3.3.3.1.2.1.1.3. [Coelenterata] (Cnidaria, first Eumetazoa) 2.3.3.3.1.2.1.1.3.1. [Anthozoa] (polyps, corals) 2.3.3.3.1.2.1.1.3.2. [Jellyfish] [Medusa] 2.3.3.3.1.2.1.1.3.3. [Hydrozoans] One level further to [Anthozoa] (polyps, corals) One level further to [Jellyfish] [Medusa] One level further to [Hydrozoans]

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[Coelenterata] (Cnidaria, first Eumetazoa)