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) Lithosphere (Earth) - layer of rock
                                   "geologic provinces"
                                     1 (Region) Former Soviet Union (geology)
                                     2 (Region) Middle East and North Africa (geology)
                                     3 (Region) Asia Pacific (geology)
                                     4 (Region) Europe (geology)
                                     5 (Region) North America (geology)
                                     6 (Region) Central and South America (geology)
                                     7 (Region) Sub-Saharan Africa and Antarctica (geology)
                                     8 (Region) South Asia (geology)