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noun Geology.
a hypothetical landmass in the Northern Hemisphere near the end of the Paleozoic Era: split apart to form North America and Eurasia.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Laurasia
is always a great word to know.
So is horizon. Does it mean:
| central portion of the earth believed to be composed mainly of iron and nickel in a molten state |
| thin, distinctive stratum useful for stratigraphic correlation |
Collins
World English Dictionary
| Laurasia (lɔːˈreɪʃə) | |
| —n | |
| Gondwanaland See also Pangaea one of the two ancient supercontinents produced by the first split of the even larger supercontinent Pangaea about 200 million years ago, comprising what are now North America, Greenland, Europe, and Asia (excluding India) | |
| [C20: from New Latin Laur(entia) (referring to the ancient N American landmass, from Laurentian strata of the Canadian Shield) + (Eur)asia] | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
Laurasia  (lô-rā'zhə) Pronunciation Key
A supercontinent of the Northern Hemisphere made up of the landmasses that currently correspond to North America, Greenland, Europe, and Asia (except India). According to the theory of plate tectonics, Laurasia separated from Pangaea at the end of the Paleozoic Era and broke up into the current continents in the middle of the Mesozoic Era. Compare Gondwanaland. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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