Silurian Period It was the third period in the Paleozoic Era. It followed the Ordovician Period and preceded the Devonian Period.

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.

mid-Silurian First species of Romundina, a Placoderm

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.

mainly crinoids, corals,brachiopods, trilobites, algae and bryozoans in the Silurian period
continental landmasses were low and sea levels were rising.

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

Johnson, Markes E. "Silurian Period." Encyclopædia Britannica. Encyclopædia Britannica, Inc., 09 Mar. 2016. Web. 16 Mar. 2017. <>.

Bagley, Mary. "Silurian Period Facts: Climate, Animals & Plants." LiveScience. Purch, 19 Feb. 2014. Web. 17 Mar. 2017. <>.

The Silurian Period." The Silurian Period. N.p., n.d. Web. 17 Mar. 2017. <>

"The Silurian." Palaeos Paleozoic : Silurian : The Silurian Period. N.p., n.d. Web. 17 Mar. 2017. <>

"BBC Nature - Ordovician-Silurian Mass Extinction Videos, News and Facts." BBC News. BBC, n.d. Web. 17 Mar. 2017. <>.

"Silurian Period." Emaze Presentations. N.p., n.d. Web. 17 Mar. 2017. <>.


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