Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       Astra Plinius - celestial bodies
         Universe
           (Supercluster) Virgo-Hydra-Centaurus Supercluster
             (Supercluster) Virgo Supercluster
               (Cluster) Local Group
                 (Galaxy) Milky Way Galaxy veter.
                   (Spiral arm) Orion Arm
                     (Region) Local Bubble
                       Local Interstellar Cloud
                         (Planetary system) Solar System
                           (Planet-satellite system) Earth System
                             (Planet) Earth veter.
                               "spheres" (Earth)
                                 (Sphere) "surface" (Earth)
                                   1.1 (Oceanic basin) "Arctic Basin" (Arctic Ocean)
                                   1.2 (Oceanic basin) "Atlantic Basin" (Atlantic Ocean)
                                   2.1 (Continent) Afro-Eurasia
                                   2.2 (Continent) Americas
                                   3 (Oceanic basin) "Indian Basin" (Indian Ocean)
                                   4.1 (Continent) Australia
                                   4.2.450000S1470000E (Undersea plateau) Tasman Plateau (Undersea Features)
                                   5 (Oceanic basin) "Pacific Basin" (Pacific Ocean)
                                   6 (Oceanic basin) "Southern Basin" (Southern Ocean)