Ectasian Period

The Ectasian Period was the second geological period in the Mesoproterozoic Era, stretching from 1400 to 1200 million years ago. During this period, the first evidence of sexual reproduction occurred, with the algae bangiomorpha pubescens.

Adjacent Periods
The Ectasian Period was preceded by the Calymmian Period, and succeeded by the Stenian Period.