Editing Phanerozoic (section)

====Silurian Period====
{{Main|Silurian}}
[[File:Dalmanites limulurus trilobite silurian.jpg|left|thumb|177x177px|''[[Dalmanites|Dalmanites limulurus]]'', a species of Silurian [[trilobite]]s]]
The Silurian spans from 444 million to 419&nbsp;million years ago, which saw a warming from an icehouse Earth. This period saw the [[evolution of fish|mass diversification of fish]], as jawless fish became more numerous, and early [[jawed fish]] and [[freshwater fish|freshwater species]] appeared in the fossil record. Arthropods remained abundant, and some groups, such as [[eurypterid]]s, became [[apex predator]]s in the ocean. Fully terrestrial life established itself on land, including early [[fungi]], [[arachnid]]s, [[Hexapoda|hexapod]]s and [[myriapod]]s. The evolution of [[vascular plant]]s (mainly [[spore]]-producing [[fern]]s such as ''[[Cooksonia]]'') allowed land plants to gain a foothold further inland as well. During this time, there were four continents: [[Gondwana]] (Africa, South America, Australia, Antarctica, India), [[Laurentia]] (North America with parts of Europe), [[Baltica]] (the rest of Europe), and [[Siberia (continent)|Siberia]] (Northern Asia).<ref>{{cite web|url=http://www.ucmp.berkeley.edu/silurian/silurian.php|author=University of California|title=Silurian|work=University of California|url-status=live|archive-url=https://web.archive.org/web/20170616141804/http://www.ucmp.berkeley.edu/silurian/silurian.php|archive-date=16 June 2017}}</ref>