Rhyacian Period From 2300 +/- 0 To 2050 +/- 0 Ma Start Defined By: Fixed Date End Defined By: Fixed Date Start Based On: Gradstein, Ogg, Smith, et. al., _A Geologic Time Scale 2004_ End Based On: Gradstein, Ogg, Smith, et. al., _A Geologic Time Scale 2004_ -- Overlaps With -- General Stage: Animikean (2225 - 1400) -- A Substage of -- Time: Precambrian (4567.17 - 542) Eon: Proterozoic (2500 - 542) General Stage: Huronian (2500 - 1400) Era: Paleoproterozoic (2500 - 1600) Chinese Stage: Luliangian (2350 - 1750) -- Preceded By -- Period: Siderian (2500 - 2300) -- Followed By -- Period: Orosirian (2050 - 1800)
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