The earliest evidence of eukaryotes (complex cells with organelles) dates from 1.85 Ga, and while they may have been present earlier, their diversification accelerated when they started using oxygen in their metabolism.
Najraniji dokazi eukariota (kompleksnih stanica s organelama) potječu od prije 1,85 Ga, i iako su možda postojali i prije toga, njihova se diverzifikacija ubrzala kada su počeli rabiti kisik u svojem metabolizmu.