Natura - nature Status: extant actualia - actual entities Status: extant Mundus Plinius - physical world Status: extant Astra Plinius - celestial bodies Status: extant Universe Period: Pre-Hadean - Present (13.787 - 0 Gya); Status: extant (Supercluster) Virgo-Hydra-Centaurus Supercluster Status: extant (Supercluster) Virgo Supercluster Status: extant (Cluster) Local Group Status: extant (Galaxy) Milky Way Galaxy veter. Status: extant (Spiral arm) Orion Arm Status: extant (Region) Local Bubble Status: extant Local Interstellar Cloud Status: extant (Planetary system) Solar System Status: extant (Planet-satellite system) Earth System Period: Hadean - Present (4.567 - 0 Gya); Status: extant (Planet) Earth veter. Period: Hadean - Present (4.567 - 0 Gya); Status: extant "spheres" (Earth) Status: extant (Sphere) Lithosphere (Earth) - layer of rock Status: extant "strata" Status: extant "chronostratigraphic units" Status: extant "global chronostratigraphic units" Status: extant (Eonothem) Phanerozoic Eonothem (541.0 Ma - present) Period: Early Cambrian - Present [541 Mya - present]; Status: extant (Erathem) Cenozoic Erathem (66.0 Ma - present) Period: Early Paleocene - Present [66 Mya - present]; Status: extant (System) †Paleogene System (66.0 - 23.03 Ma) Period: Early Paleocene - Late Oligocene [66 - 23.03 Mya]; Status: fossil 1 (Series) †Paleocene Series (66.0 - 56.0 Ma) Period: Early Paleocene - Late Paleocene [66 - 56 Mya]; Status: fossil 2 (Series) †Eocene Series (56.0 - 33.9 Ma) Period: Early Eocene - Late Eocene [56 - 33.9 Mya]; Status: fossil 3 (Series) †Oligocene Series (33.9 - 23.03 Ma) Period: Early Oligocene - Late Oligocene [33.9 - 23.03 Mya]; Status: fossil