1) Amphibian geologic period 2) Geological period 3) Period 4) Permian period
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The Permian is a geologic period and system which extends from {Geologic Ages Inline|Permian} to {Geologic Ages Inline|Triassic} million years ago. It is the last period of the Paleozoic Era, following the Carboniferous Period and preceding the Triassic Period of the Mesozoic Era. The concept of the Permian was introduced in 1841 by geologist Sir ...
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http://en.wikipedia.org/wiki/Permian
• (n.) The Permian period. See Chart of Geology. • (a.) Belonging or relating to the period, and also to the formation, next following the Carboniferous, and regarded as closing the Carboniferous age and Paleozoic era.
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(from the article `Finno-Ugric religion`) The Permian branch of the Finno-Ugric populations living in central Russia split from the other groups between 2500 and 2000 ; the linguistic ...
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http://www.britannica.com/eb/a-z/p/46
The final period of the Palaeozoic from 290Ma-245Ma. The end of the Permian saw a mass extinction that wiped out around 90% of all marine life and nearly 70% of terrestrial life. Many theories have been presented for the cause of the extinction, including plate tectonics, an impact event, a supernova, extreme volcanism, the release of frozen methan...
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http://www.encyclo.co.uk/local/20206
1. <geology> Belonging or relating to the period, and also to the formation, next following the Carboniferous, and regarded as closing the Carboniferous age and Paleozoic era. ... 2. <ethnology> A tribe belonging to the Finnic race, and inhabiting a portion of Russia. ... Origin: From the ancient kingdom of Permia, where the Permian for...
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http://www.encyclo.co.uk/local/20973
The last period of the Paleozoic era (after the Pennsylvanian), thought to have covered the span of time between 290 and 248 million years ago; also, the corresponding system of rocks. The Permian is sometimes considered part to the Carboniferous, or is divided between the Carboniferous and Triassic. It is named after the province of Perm, Russia, ...
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http://www.encyclo.co.uk/local/22047
a geological strata/period formed during the period 250 to 295 million years before present;
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Per'mi·an adjective [ From the ancient kingdom of
Permia , where the Permian formation exists.]
(Geol.) Belonging or relating to the period, and also to the formation, next following the Carboniferous, and regarded as closing the Carboniferous age and Paleozoic era. --
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http://www.encyclo.co.uk/webster/P/59
Last geologic period in the Paleozoic era. Occurred from 286 to 245 million years ago. This period saw the mass extinction of many corals, brachiopods, and trilobites. It also saw the diversification and growing dominance of the reptiles.
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http://www.physicalgeography.net/physgeoglos/p.html
The Permian was the eighth geological period, 205,000,000 years ago. It marked the evolution of the reptiles.
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http://www.probertencyclopaedia.com/browse/HP.HTM
geological period lasting from 280 to 225 million years ago. See time table.
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http://www.seafriends.org.nz/books/glossary.htm
[
n] - from 230 million to 280 million years ago
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http://www.webdictionary.co.uk/definition.php?query=Permian
A period of geological time between 286 and 248 million years ago. The name comes from Permia, an ancient kingdom in Central Europe. See Geological Timescale
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https://www.encyclo.co.uk/local/20800
Permian period noun from 280 million to 230 million years ago; reptiles
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https://www.encyclo.co.uk/local/20974
The final period of the Paleozoic era, spanning the time between 286 and 248 million years ago. It is named after the province of Perm, Russia, where rocks of this age were first studied.
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https://www.encyclo.co.uk/local/21202
Period of geological time 290–245 million years ago, the last period of the Palaeozoic era. Its end was marked by a dramatic change in marine life – the greatest mass extinction in geological history – including the extinction of many corals and trilobites. Deserts were widespread, terrestrial amphibians and mammal-like reptiles ...
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https://www.encyclo.co.uk/local/21221
The period of time between 252 and 298 million years ago.
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https://www.encyclo.co.uk/local/23001
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