The Silurian period lasted around 443 to 416 million years.
Super continent, Gondwana covered most of the southern latitudes and broken up 180 million years ago.
Third largest extinction in Earth's history. Ordovician-Silurian mass extinction had two peak dying times separated by hundreds of thousands of years, ice age has been blamed for the extinction, and 85% of sea life was wiped out.
Climate was generally warm and stable,in contrast to the glaciers of the late Ordovician and the extreme heat of the Devonian.
First true plants began to take root on land some 430 million years ago. Hornworts and liverworts were very popular in this period, these were also known as mosses
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Credits:
https://www.britannica.com/science/Silurian-Period http://www.bbc.co.uk/nature/history_of_the_earth/Silurian http://www.ucmp.berkeley.edu/silurian/silustrat.html