1300 million years
or 317 meters to today
Geological era: Protoerozoic/Ectasium
Towards the end of this age, cells appear for the first time which, unlike bacteria, have a real cell nucleus in which their genetic material is stored in a more protected way. The division of the cell interior into several compartments also enables the separation of different chemical reactions and the accumulation of storage substances.
Among the first cells of this type are unicellular red algae, which will later also colonise the land.
Geologically, the formation of the supercontinent Rodinia begins. During the 200 million years of ectasium, the CO2 depletion of the atmosphere leads to repeated ice ages. These phases, in which the land masses are thickly covered with ice, alternate with tropical periods.