Ìyàtọ̀ láàrin àwọn àtúnyẹ̀wò "Ìgbà Dẹfoníà"

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4 bytes added ,  05:36, 5 Oṣù Kọkànlá 2012
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r2.7.3) (Robot: Modifying ms:Devonian to ms:Zaman Devon; cosmetic changes
k (r2.7.3) (Bot: Ìfikún ms:Devonian)
k (r2.7.3) (Robot: Modifying ms:Devonian to ms:Zaman Devon; cosmetic changes)
|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>
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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}}
 
[[lv:Devons]]
[[ml:ഡെവോണിയൻ കാലഘട്ടം]]
[[ms:DevonianZaman Devon]]
[[mzn:دونین]]
[[nds:Devon (Geologie)]]
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