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) Biosphere (Earth) - zone of life "marine ecoregions" (Region) Atlantic (Biogeographic realm) Tropical Atlantic (Biogeographic province) Tropical Southwestern Atlantic 1 (Marine ecoregion) Sao Pedro and Sao Paulo Islands 2 (Marine ecoregion) Fernando de Naronha and Atoll das Rocas 3 (Marine ecoregion) Northeastern Brazil 4 (Marine ecoregion) Eastern Brazil 5 (Marine ecoregion) Trindade and Martin Vaz Islands