Expert By SamK on November 02, 2023 Category(s)World and PlanetsTopic(s)Proterozoic EonEarth2,500 M - 538.8 M YearsThe time span of Proterozoic Eon was 2,500 million years to 538.8 million years ago, while it's duration was approx. 1961.2 million years.
