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"
                                     "lithostratigraphic units"
                                       (Group) Jehol Group (northern China)
                                         1 (Formation) Xiagou Formation (China: Gansu)
                                         2 (Formation) Yijinhuoluo Formation (China: Nei Mongol)
                                         3.1 (Formation) Dabeigou Formation (China: Hebei)
                                         3.2 (Formation) Dadianzi Formation (China: Hebei)
                                         3.3 (Formation) Xiguayuan Formation (China: Hebei)
                                         4.1 (Formation) Yixian Formation (China: Liaoning)
                                         4.2 (Formation) Jiufotang Formation (China: Liaoning)