Systema naturæ - nature
   Universum - universe see [unranked] Mundus Plinius
     naturalia - natural bodies
       Regnum Animale nom. inval. - animal kingdom see Kingdom Animalia Linnaeus, 1758
         Class Vermes nom. inval. - vermin see Class Vermes Linnaeus, 1758
           Order Zoophyta nom. inval. see Order Zoophyta Linnaeus, 1758
             1 Genus Tethys Linnaeus, 1735, nom. inval. see Genus Tethys Linnaeus, 1767, nom. cons.
             2 Genus Echinus nom. inval. see Genus Echinus Linnaeus, 1758
             3 Genus Asterias nom. inval. see Genus Asterias Linnaeus, 1758
             4 Genus Medusa nom. inval. see Genus Medusa Linnaeus, 1758
             5 Genus Sepia nom. inval. see Genus Sepia Linnaeus, 1758
             6 Genus Microcosmus nom. inval.