Expert By SamK on December 12, 2023 Category(s)World and PlanetsTopic(s)Siderian PeriodEarth PeriodsEarth2,500 M - 2,300 M YearsThe time span of Siderian period was 2,500 million years to 2,300 million years ago, while it's duration was approx. 200 million years.
