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Mississippian |
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Mississippian 1. of or relating to the state of Mississippi or the Mississippi River 2. (in North America) of, denoting, or formed in the lower of two subdivisions of the Carboniferous period (see also Pennsylvanian (sense 2)), which lasted for 30 million years 3. the. the Mississippian period or rock system equivalent to the lower Carboniferous of Europe Mississippian [¦mis·ə¦sip·ē·ən] (geology) The fifth period of the Paleozoic Era beginning about 350 million years ago and ending about 320 million years ago. The Mississippian System (referring to rocks) or Period (referring to the time during which these rocks were deposited) is employed in North America as the lower (or older) subdivision of the Carboniferous, as used in Europe and on other continents. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| The Lower Carboniferous period, lasting from 360 million to 320 million years ago, saw many important evolutionary changes in reptiles, amphibians and arthropods. FME's 11 exploration permits, totaling 4,874 km2, cover Upper Devonian to Lower Carboniferous sediments/volcanics and their unconformable contact with underlying Palaeoproterozoic metasediments, and granitoids of Proterozoic and Silurian to Early Devonian ages. Wood's Fossils in West Lothian, Scotland, and co-workers at The University at Newcastle upon Tyne discovered amphibian, arthropod and plant fossils in the Lower Carboniferous (320 to 360 million years ago) layers of the East Kirkton Limestone in Scotland. |
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