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Organisms CRC (Eukaryotes (Amorphea (Metazoa (Animals) (Eumetazoa…

- - - - Eumetazoa
        
        Cnidaria
        
        Nerve net
        
        Jellyfish
        
        Hydra
        
        Bilateralia, Protostome
        ("Dohrn worm" †)
        
        Rope ladder CNS
        
        ·
        
        Ecdysozoa
        
        Arthropoda
        
        3 more items...
        
        Nematoda
        
        Lophotrochozoa
        
        Mollusca
        
        Annelida
        (ringed worms)
        
        Flatworms
        
        Deuterostome
        
        Chordata
        
        Vertebrates
        
        2 more items...
        
        Acrania
        
        1 more item...
        
        Tunicata
      - Sponges
      - Placozoa (Scheibentiere)