Everything about The Ectasian totally explained
The
Ectasian (from
Greek ectasis, "extension") is the second
geologic period in the
Mesoproterozoic era and lasted from 1400
Ma ago to 1200 Ma (million years ago). Instead of being based on
stratigraphy, these dates are defined chronometrically.
Name derives from continued expansion of
platform covers during this period.
Evidence of a
eukaryotic red algae,
Bangiomorpha pubescens, has been identified from ca. 1200 Ma old rocks in the
Hunting Formation (
Somerset Island,
Canada). This is the oldest known
sexually reproducing
organism and therefore the earliest known complex
multicellular organism.
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