1.8 billion years ago · approximate date
The first complex cells
Cells with a nucleus appear, the ancestors of all plants and animals.
Larger cells with internal structure, the eukaryotes, emerged when one microbe came to live inside another. Every plant, animal and fungus descends from that partnership, though new fossils keep moving the date.
- Period
- Proterozoic
- Earth's history already passed
- 60.3524 percent
- 4.54 kilometres
- 1.8 kilometres from the end
- One day
- 14:29:04
- One year
- August 9, 06:52
Source: Smithsonian Institution · Source to be verified