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The Ectasian is the second period of the Mesoproterozoic Era, occuring after the Calymmian, and before the Stenian
Subdivisions
Subdivisions
no subdivisions
Ectasian is Greek for "extension", signifying the extension of the continental landmasses
What happens during this time?
What happens during this time?
Geological
Geological
The continents continue to grow in size
Continents continued to drift apart as they grew.
Expansion and drifing apart continue through the middle of the Ectasian
Biological
Biological
Acritarchs
Unidentified organic-walled microfossils of possible fungal, algal or other origins) appear in the fossil record
Above: Acritarchs from Ectasian Period
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