Imperium naturæ C. Linnaeus, 1758 - nature
Ref: C. Linnaeus, 1758: 5-8 [new rank]
   Mundus Plinius - physical world
  Ref: C. Linnaeus, 1758: 5 [new position]
     Astra Plinius - celestial bodies
    Ref: C. Linnaeus, 1758: 5, 6
       Planetæ - planets
      Ref: C. Linnaeus, 1758: 6
         (Moon) Luna see Moon Moon veter.
        Ref: C. Linnaeus, 1758: 6