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. "history" (Earth) "global geochronologic units" (Eon) Phanerozoic Eon (541.0 Ma - present) (Era) Cenozoic Era (66.0 Ma - present) (Period) Quaternary Period (2.58 Ma - present) (Epoch) Holocene Epoch (0.0117 Ma - present) 1 (Subepoch) ‡Early Holocene Subepoch (11.7 - 8.2 ka) 2 (Subepoch) ‡Middle Holocene Subepoch (8.2 - 4.2 ka) 3 (Subepoch) Late Holocene Subepoch (4.2 ka - present)