Quaternary Holocene 0.01 - present Human civilization develops.
Humans appear for the first time.
Miocene 23.7 - 5.3 Antarctic Ice Sheet develops. Oligocene 36.6 - 23.7 Himalaya Mountains begin to form. The Alps form in Europe. Mississippian 360 - 320 Extensive deposits of coal developed worldwide. Silurian 438 - 408 1st fossils of land plants.