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)
                                   (Oceanic basin) "Atlantic Basin" (Atlantic Ocean)
                                     (Archipelago) West Indies (Caribbean)
                                       "Caribbean"
                                         (Archipelago) Antilles (Caribbean)
                                           (Archipelago) Greater Antilles (Caribbean)
                                             (Undersea ridge) Saint Croix Ridge (Virgin Islands: St. Croix)
                                               0.174423N0644420W (Island) Saint Croix (Virgin Islands: St. Croix)
                                               1.174459N0644210W (Island) Protestant Cay (Virgin Islands: St. Croix)
                                               2.174601N0643957W (Island) Green Cay (Virgin Islands: St. Croix)
                                               3.174713N0643710W (Island) Buck Island (Virgin Islands: St. Croix)
                                               4.174103N0644541W (Island) Ruth Island (Virgin Islands: St. Croix)