Ẹ wo àmì-ọ̀rọ̀ fún Ìgbà Dẹfoníà

{{Geological period
|image=
|o2=15
|co2=2200
|temp=20
|timeline=off
|sea level = Relatively steady around 180m, gradually falling to 120m through period<ref>{{cite journal | author =  Haq, B. U.| year =  2008| doi = 10.1126/science.1161648 | title =  A Chronology of Paleozoic Sea-Level Changes | journal =  Science | volume =  322 | pages =  64–68 | pmid =  18832639 | last2 =  Schutter | first2 =  SR | issue =  5898 }}</ref>
}}
The '''Devonian''' is a [[geologic period|geologic period and system]] of the [[Paleozoic]] Era spanning from {{Ma|416|359.2}} {{ICS 2004}}. It is named after [[Devon]], [[England]], where rocks from this period were first studied.

During the Devonian Period the pectoral and pelvic fins of [[lobe-finned fish]] evolved into [[Leg (anatomy)|legs]]<ref>See ''[[Tiktaalik]]''.</ref> as they started to walk on [[Landform|land]] as [[tetrapod]]s around 397 [[Mega-annum|Ma]].<ref>[http://news.bbc.co.uk/1/hi/sci/tech/8443879.stm] Fossil tracks record 'oldest land-walkers' - BBC News</ref> Various terrestrial [[arthropod]]s also became well-established.


{{ẹ̀kúnrẹ́rẹ́}}
== Itokasi ==
{{Reflist}}

{{Phanerozoic eon}}
{{Geological history|p|p}}

[[Ẹ̀ka:Ìgbà Dẹfoníà| ]]