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)
                                 1 (Sphere) Atmosphere (Earth) - layer of air
                                 2 (Sphere) Biosphere (Earth) - zone of life
                                 3 (Sphere) Cryosphere (Earth) - layer of snow and ice
                                 4 (Sphere) Hydrosphere (Earth) - layer of water
                                 5 (Sphere) Pedosphere (Earth) - layer of soil
                                 6 (Sphere) "surface" (Earth)
                                 7 (Sphere) Lithosphere (Earth) - layer of rock
                                 8 (Sphere) Asthenosphere (Earth)
                                 9 (Sphere) "interior" (Earth)