Time runs left (older) → right (younger) · Hover a card for details
Snowball Earth; Ediacaran animals (1000-539 Ma).
1.00 Ga – 538.80 Ma · 461.20 Ma duration
Axis labels in Ma (millions of years ago) ·
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Neoproterozoic Era 4
717 Ma – 660 MaSnowball Earth — SturtianFirst global glaciationGlaciers advance to the equator, freezing the entire ocean surface. Life survives in isolated refugia.
650 Ma – 635 MaSnowball Earth — MarinoanSecond global glaciationSecond global glaciation; its dramatic end triggers the Ediacaran explosion of animal life.
600 Ma – 550 MaGondwana Begins AssemblingSouthern supercontinent formsComponents of future Gondwana come together as Rodinia breaks apart.
575 MaFirst AnimalsEdiacaran biota appearFirst unambiguous multicellular animals — soft-bodied Dickinsonia and Charnia, preserved as seafloor impressions.