
1) Continent
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https://www.crosswordclues.com/clue/laurasia

A supercontinent that existed from the Jurassic to Early Tertiary after splitting from Pangea; composed of Laurentia, Baltica, Avalonia, (modern North America, Scandinavia, Greenland, Western and Central Europe); eventually fragmented into Eurasia and North America in the Tertiary with the opening of the North Atlantic Ocean
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http://en.wikipedia.org/wiki/Glossary_of_history

Laurasia (ə or ə) was the northernmost of two supercontinents (the other being Gondwana) that formed part of the Pangaea supercontinent from approximately {Ma|300|200} (Mya). It separated from Gondwana {Ma|200|180|Mya} (beginning in the late Triassic period) during the breakup of Pangaea, drifting further north after the split. The name combines...
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http://en.wikipedia.org/wiki/Laurasia

ancient continental mass in the Northern Hemisphere that included North America, Europe, and Asia (except peninsular India). Its existence was ... [6 related articles]
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http://www.britannica.com/eb/a-z/l/22

Laurasia was the northern supercontinent formed after Pangaea broke up during the Jurassic period . Laurasia included what are now North America, Europe, Asia, Greenland, and Iceland.
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http://www.enchantedlearning.com/subjects/dinosaurs/glossary/

The ancient continental landmass that is thought to have split apart to form Europe, Asia, North America, and Greenland.
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http://www.evcforum.net/WebPages/Glossary_Geology.html

The northern portion of the late Paleozoic supercontinent called Pangea.
Found on
http://www.fossilmall.com/Science/Glossary.htm

Northern section of Pangaea.
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http://www.physicalgeography.net/physgeoglos/l.html

n. A supercontinent that existed from the Jurassic to Early Tertiary after splitting from Pangea; composed of Laurentia, Baltica, Avalonia, (modern North America, Scandinavia, Greenland, Western and Central Europe); eventually fragmented into Eurasia and North America in the Tertiary with the opening of the North Atlantic Ocean.
Found on
http://www.ucmp.berkeley.edu/glossary/glossary_9.html

[
n] - a hypothetical continent that (according to plate tectonic theory) broke up later into North America and Europe and Asia
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http://www.webdictionary.co.uk/definition.php?query=Laurasia

The northern land mass formed 200 million years ago when Pangea split into two large land masses. It consisted of present-day North America, Europe, and Asia.
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https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter
noun a hypothetical continent that (according to plate tectonic theory) broke up later into North America and Europe and Asia
Found on
https://www.encyclo.co.uk/local/20974

Northern landmass formed 200 million years ago by the splitting of the single world continent Pangaea. (The southern landmass was Gondwanaland.) It consisted of what was to become North America, Greenland, Europe, and Asia, and is believed to have broken up about 100 million years ago with the separation of North America from Europe
Found on
https://www.encyclo.co.uk/local/21221

The northern portion of the late Paleozoic supercontinent called Pangea.
Found on
https://www.encyclo.co.uk/local/22327
No exact match found.