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#REDIRECT [[Laurasia#Euramerica/Laurussia]] |
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{{Short description|Supercontinent created in the Devonian}} |
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{{confuse|Laurasia}} |
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{{Sources exist|date=October 2024}} |
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'''Euramerica''' (also known as '''Laurussia''' – not to be confused with [[Laurasia]], – the '''Old Red Continent''' or the '''[[Old Red Sandstone]] Continent''') was a minor [[supercontinent]] created in the [[Devonian]] as the result of a collision between the [[Laurentia]]n, [[Baltica]]n, and [[Avalonia]]n [[craton]]s during the [[Caledonian orogeny]], about 410 million years ago. In the Late [[Carboniferous]], [[tropical rainforest]]s lay over the [[equator]] of Euramerica. A major, abrupt change in vegetation occurred when the climate [[Aridity|aridified]]. The forest fragmented and the [[Lycopodiopsida|lycopsids]] which dominated these wetlands thinned out, being replaced by opportunistic [[fern|ferns]]. There was also a great loss of [[amphibian]] diversity and simultaneously the drier climate spurred the diversification of [[reptile|reptiles]].<ref name="SahneyBentonFerry2010LinksDiversityVertebrates">{{ cite journal | url=http://geology.geoscienceworld.org/cgi/content/abstract/38/12/1079 | last1=Sahney | first1=Sarda | last2=Benton | first2=Michael J. | last3=Falcon-Lang | first3=Howard J. | year=2010 | title=Rainforest collapse triggered Pennsylvanian tetrapod diversification in Euramerica | journal=Geology | volume=38 | pages=1079–1082 | format=PDF | doi=10.1130/G31182.1 | issue=12}}</ref> |
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{{R with history}} |
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==Extent== |
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{{R to section}} |
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[[File:Laurussia Euramerica.svg|thumb|300px|Euramerica in the Devonian]] |
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Euramerica became a part of the major supercontinent [[Pangaea]] in the [[Permian]]. In the [[Jurassic]], when Pangaea rifted into two [[Continent|continents]], [[Gondwana]] and [[Laurasia]], Euramerica was a part of Laurasia. |
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In the [[eocene]], Laurasia split into the continents of [[North America]] and [[Eurasia]]. The Laurentian [[craton]] became a part of [[North America]] while [[Baltica]] became a part of [[Eurasia]], and [[Avalonia]] was split between the two. |
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==Events by period== |
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*Devonian: The first forests grew in the floodplain around the foothills of the [[Caledonian orogeny|Caledonian mountain range]].<ref>{{cite serial |title=[[Miracle Planet]] |episode=3. New Frontiers |url= |series= |credits= |network=Discovery Channel |date=2006 |publisher=National Board of Film (Canada) and NHK (Japan)}}</ref> |
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*Carboniferous: Climate change devastated tropical rainforests, fragmenting the forests into isolated 'islands' and causing the extinction of many plant and animal species during the [[Carboniferous rainforest collapse|Carboniferous Rainforest Collapse]] (CRC). |
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*Permian: Euramerica became a part of the supercontinent Pangaea. |
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*[[Jurassic]]: Pangaea rifted into [[Gondwana]] and [[Laurasia]]. |
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*Cretaceous: Laurasia split into the continents of [[North America]], [[Europe]] and [[Asia]]. |
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==See also== |
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*[[Continental drift]] |
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*[[Eurasia]] |
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*[[Main Uralian Fault]] |
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==References== |
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{{reflist}} |
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==External links== |
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*[https://web.archive.org/web/20060620034942/http://www.palaeos.com/Earth/Geography/Euramerica.html Palaeos Earth: Geography: Euramerica] |
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*[https://web.archive.org/web/20171203122738/http://jan.ucc.nau.edu/~rcb7/Devonian.html Paleogeographic globe of the Devonian Earth] |
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{{Continents of the world}} |
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[[Category:Former supercontinents]] |
[[Category:Former supercontinents]] |
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Latest revision as of 11:51, 20 December 2024
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