2,000,000,000 Ya
2 Ga
- Evo : complex cells (eukaryotes) Evolve
1.8 Ga
- Geo : Nena Supercontinent Forms
1.5 Ga
- Geo : Columbia Supercontinent : Forms
Read more about this topic: Timeline Of Environmental History
2,000,000,000 Ya
2 Ga
1.8 Ga
1.5 Ga
Read more about this topic: Timeline Of Environmental History