Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The protocontinent of the Northern Hemisphere, a hypothetical landmass that according to the theory of plate tectonics broke up into North America, Europe, and Asia.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • proper n. A supercontinent including most of the landmasses which make up today's continents of the northern hemisphere.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a hypothetical continent that (according to plate tectonic theory) broke up later into North America and Europe and Asia

Etymologies

New Latin Laur(entia), geologic precursor of North America (after the Saint Lawrence River ) + (Eur)asia .
(American Heritage® Dictionary of the English Language, Fourth Edition)
Blend of Laurentia and Eurasia (Wiktionary)

Examples

  • North America then joined with Eurasia creating Laurasia.

    Physiography of the ocean basins

  • There is a wide range of rock types which provide evidence the area's past marine evolution under the Tethys and neo-Tethys seas (a shallow sea that existed during the early Mesozoic Era and was the body of water that separated the landmass of Laurasia in the north from Gondwanaland in the south), which have been powerfully deformed by the collision.

    Three Parallel Rivers of Yunnan Protected Areas, China

  • The Bungle Bungle Mountains are an unusual and very dramatic plateau of Devonian quartz sandstone (approximately 360 million years old), created through a complex process of sedimentation, compaction, uplift (caused by the collision of Gondwanaland and Laurasia approximately 300 million years ago and the convergence of the Indo-Australian Plate and the Pacific Plates 20 million years ago), as well as long periods of erosion.

    Purnululu National Park, Australia

  • Hundreds of millions of years ago, there were two supercontinents, Laurasia (North America, Europe and Asia) and Gondwana (everything else).

    The Fruit Hunters

  • I pored over maps that geologists had reconstructed of the Paleozoic continents and features that they christened with names like Pangea, Laurasia, Gondwanaland, and the Tethys Sea.

    Adrift

  • Universe's Big Bang and the creation of Mother Earth and the formation of the oldest continents, Gondwanaland and Laurasia from where the ancient mountainland of Barberton as well as Sterkfontein and Maropeng descend.

    Address at the official opening of the Maropeng Visitor Centre

  • During that time, these continents were joined together in a single super-continent called “Laurasia”.

    Of dragons and microbes - The Panda's Thumb

  • Ending its 150-million-year-old union with Greenland, Europe, and Asia, the supercontinent Laurasia was breaking apart and the future basins of the Atlantic and Arctic Oceans were filling with inrushing sea water.

    Trout and Salmon of North America

  • In the same sense, it would have been wrong to say that we "know" that there was no advance knowledge of Columbus in the splitting of the early continent of Laurasia into Eurasia and North America.

    What Science Can Explain

  • Gibreel was drifting towards him, like India when, having come unstuck from the Gondwanaland proto -- continent, it floated towards Laurasia.

    The Satanic Verses

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