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
                                   "strata"
                                     "chronostratigraphic units"
                                       "global chronostratigraphic units"
                                         (Eonothem) Phanerozoic Eonothem (541.0 Ma - present)
                                           (Erathem) Cenozoic Erathem (66.0 Ma - present)
                                             (System) †Neogene System (23.03 - 2.58 Ma)
                                               (Series) †Miocene Series (23.03 - 5.333 Ma)
                                                 1.1 (Stage) †Aquitanian Stage (23.03 - 20.44 Ma)
                                                 1.2 (Stage) †Burdigalian Stage (20.44 - 15.97 Ma)
                                                 2.1 (Stage) †Langhian Stage (15.97 - 13.82 Ma)
                                                 2.2 (Stage) †Serravallian Stage (13.82 - 11.63 Ma)
                                                 3.1 (Stage) †Tortonian Stage (11.63 - 7.246 Ma)
                                                 3.2 (Stage) †Messinian Stage (7.246 - 5.333 Ma)