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Period: Jan 28, 1000 to
proterozoic
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Feb 28, 1000
neo-proterozic
it is further subdivided into the Tonian, Cryogenian, and Ediacaran Periods. The most severe glaciation known in the geologic record occurred during the Cryogenian -
Feb 28, 1100
1050
alot of multi-celled animals live in this time -
Feb 28, 1300
the land under n.c is pulled apart
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meso-proterozoic
1,600 to 1,000 million years ago. The Mesoproterozoic was the first period of Earth's history of which a respectable geological record survives